diff --git a/doc-exports b/doc-exports new file mode 160000 index 000000000..118a10979 --- /dev/null +++ b/doc-exports @@ -0,0 +1 @@ +Subproject commit 118a109795f9193fc0bab68fb222736a4d17142f diff --git a/docs/dds/umn/.placeholder b/docs/dds/umn/.placeholder deleted file mode 100644 index e69de29bb..000000000 diff --git a/docs/dds/umn/ALL_META.TXT.json b/docs/dds/umn/ALL_META.TXT.json new file mode 100644 index 000000000..0891cb36e --- /dev/null +++ b/docs/dds/umn/ALL_META.TXT.json @@ -0,0 +1,1292 @@ +[ + { + "uri":"en-us_topic_user_guide.html", + "product_code":"dds", + "code":"1", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Introduction", + "title":"Introduction", + "githuburl":"" + }, + { + "uri":"en-us_topic_introduction.html", + "product_code":"dds", + "code":"2", + "des":"Document Database Service (DDS) is compatible with MongoDB and is secure, highly available, reliable, scalable, and easy to use. It provides DB instance creation, scaling", + "doc_type":"usermanual", + "kw":"MongoDB,scalable,scaling,redundancy,replica set,high availability (HA) data storage,redundancy,distr", + "title":"What Is DDS?", + "githuburl":"" + }, + { + "uri":"dds_01_0021.html", + "product_code":"dds", + "code":"3", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"System Architecture", + "title":"System Architecture", + "githuburl":"" + }, + { + "uri":"dds_01_0011.html", + "product_code":"dds", + "code":"4", + "des":"Each DDS cluster is an independent document database. A sharded cluster consists of mongos, config, and shard.Data read and write requests are forwarded by mongos. A mong", + "doc_type":"usermanual", + "kw":"Cluster Architecture,System Architecture,User Guide", + "title":"Cluster Architecture", + "githuburl":"" + }, + { + "uri":"dds_01_0012.html", + "product_code":"dds", + "code":"5", + "des":"A replica set consists of a set of mongod processes and provides a collection of data nodes to ensure data redundancy and reliability.For details about the mongod process", + "doc_type":"usermanual", + "kw":"Replica Set Architecture,System Architecture,User Guide", + "title":"Replica Set Architecture", + "githuburl":"" + }, + { + "uri":"dds_01_0001.html", + "product_code":"dds", + "code":"6", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Basic Concepts", + "title":"Basic Concepts", + "githuburl":"" + }, + { + "uri":"dds_01_0002.html", + "product_code":"dds", + "code":"7", + "des":"DDS cluster instances consist of mongos, config, and shard nodes. The following diagram shows the node relationships.A mongos is a router for reading and writing data, pr", + "doc_type":"usermanual", + "kw":"Cluster,Basic Concepts,User Guide", + "title":"Cluster", + "githuburl":"" + }, + { + "uri":"dds_01_0005.html", + "product_code":"dds", + "code":"8", + "des":"A database parameter group is a collection of configuration parameters and values and can be applied to multiple DB instances.", + "doc_type":"usermanual", + "kw":"Database Parameter Group,Basic Concepts,User Guide", + "title":"Database Parameter Group", + "githuburl":"" + }, + { + "uri":"dds_01_0027.html", + "product_code":"dds", + "code":"9", + "des":"A region is a geographic area in which resources used by DDS are located.Each region comprises one or more AZs and is completely isolated from other regions. AZs within t", + "doc_type":"usermanual", + "kw":"Regions and AZs,Basic Concepts,User Guide", + "title":"Regions and AZs", + "githuburl":"" + }, + { + "uri":"dds_01_0006.html", + "product_code":"dds", + "code":"10", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Product Advantages", + "title":"Product Advantages", + "githuburl":"" + }, + { + "uri":"dds_01_0007.html", + "product_code":"dds", + "code":"11", + "des":"The three-node replica set architecture of DDS ensures high service availability.In a replica set, both the primary and secondary nodes provide services. If a primary nod", + "doc_type":"usermanual", + "kw":"High Reliability,Product Advantages,User Guide", + "title":"High Reliability", + "githuburl":"" + }, + { + "uri":"dds_01_0008.html", + "product_code":"dds", + "code":"12", + "des":"DDS uses Virtual Private Clouds (VPCs) and network security groups to isolate your DB instances. VPCs allow you to configure IP address ranges that are allowed access to ", + "doc_type":"usermanual", + "kw":"access to DDS,High Security,Product Advantages,User Guide", + "title":"High Security", + "githuburl":"" + }, + { + "uri":"dds_01_0010.html", + "product_code":"dds", + "code":"13", + "des":"You can create a DB instance on the management console and access DDS through an Elastic Cloud Server (ECS) to reduce the application response time. If you need to access", + "doc_type":"usermanual", + "kw":"NoSQL database,MongoDB,Ease of Use,Product Advantages,User Guide", + "title":"Ease of Use", + "githuburl":"" + }, + { + "uri":"dds_01_0009.html", + "product_code":"dds", + "code":"14", + "des":"DDS supports the cluster mode. You can select multiple mongos and shards. When your service changes or the current instance configuration cannot meet the application perf", + "doc_type":"usermanual", + "kw":"Scalability,Product Advantages,User Guide", + "title":"Scalability", + "githuburl":"" + }, + { + "uri":"dds_01_0013.html", + "product_code":"dds", + "code":"15", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"DDS DB Instance", + "title":"DDS DB Instance", + "githuburl":"" + }, + { + "uri":"dds_01_0024.html", + "product_code":"dds", + "code":"16", + "des":"DB instance specifications are listed in the following table.DB instance specifications vary depending on the actual environment.For details about the cluster instance sp", + "doc_type":"usermanual", + "kw":"DB Instance Specifications,DDS DB Instance,User Guide", + "title":"DB Instance Specifications", + "githuburl":"" + }, + { + "uri":"dds_01_0014.html", + "product_code":"dds", + "code":"17", + "des":"Currently, DDS is compatible with MongoDB 3.2 and 3.4 Community Edition and supports the WiredTiger storage engine, so you need to use a driver compatible with MongoDB 3.", + "doc_type":"usermanual", + "kw":"Database Engine and Version,DDS DB Instance,User Guide", + "title":"Database Engine and Version", + "githuburl":"" + }, + { + "uri":"dds_01_0026.html", + "product_code":"dds", + "code":"18", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Database Status,DDS DB Instance,User Guide", + "title":"Database Status", + "githuburl":"" + }, + { + "uri":"dds_01_0015.html", + "product_code":"dds", + "code":"19", + "des":"Mobile Apps and MapsDDS supports two-dimensional space indexes for mobile applications (Apps) and maps that have location query requests. In addition, the dynamic storage", + "doc_type":"usermanual", + "kw":"Typical Application Scenarios,Introduction,User Guide", + "title":"Typical Application Scenarios", + "githuburl":"" + }, + { + "uri":"dds_01_0016.html", + "product_code":"dds", + "code":"20", + "des":"ECS provides DDS with elastic computing resources. DDS needs to apply for resources from ECS to build a running environment for DB instances.For more information, see the", + "doc_type":"usermanual", + "kw":"Related Services,Introduction,User Guide", + "title":"Related Services", + "githuburl":"" + }, + { + "uri":"dds_01_0017.html", + "product_code":"dds", + "code":"21", + "des":"DDS provides two types of user permissions by default: user management and resource management.User management refers to the management of users, user groups, and user gr", + "doc_type":"usermanual", + "kw":"User Permissions,Introduction,User Guide", + "title":"User Permissions", + "githuburl":"" + }, + { + "uri":"dds_02_0043.html", + "product_code":"dds", + "code":"22", + "des":"You have registered an account.For the first time you use DDS, register an account at the official website. After the registration, your account has permissions to access", + "doc_type":"usermanual", + "kw":"Logging In to the DDS Console,User Guide", + "title":"Logging In to the DDS Console", + "githuburl":"" + }, + { + "uri":"dds_02_cluster.html", + "product_code":"dds", + "code":"23", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Getting Started with Clusters", + "title":"Getting Started with Clusters", + "githuburl":"" + }, + { + "uri":"dds_02_0003.html", + "product_code":"dds", + "code":"24", + "des":"This section describes how to create a cluster instance, set a security group, and connect to a cluster instance.Users who create the DDS DB instance for the first time.U", + "doc_type":"usermanual", + "kw":"Service Process,Getting Started with Clusters,User Guide", + "title":"Service Process", + "githuburl":"" + }, + { + "uri":"dds_02_0002.html", + "product_code":"dds", + "code":"25", + "des":"To improve the stability and security of DB instances, there are some restrictions on the use of DDS. For details, see Table 1.", + "doc_type":"usermanual", + "kw":"DDS DB instance,Restrictions,Getting Started with Clusters,User Guide", + "title":"Restrictions", + "githuburl":"" + }, + { + "uri":"dds_02_0008.html", + "product_code":"dds", + "code":"26", + "des":"This section describes how to create a DDS cluster instance of Community Edition on the DDS management console. DDS allows you to tailor your computing resources and stor", + "doc_type":"usermanual", + "kw":"DB instance,Creating a Cluster Instance,Getting Started with Clusters,User Guide", + "title":"Creating a Cluster Instance", + "githuburl":"" + }, + { + "uri":"dds_02_0005.html", + "product_code":"dds", + "code":"27", + "des":"This section guides you on how to add a security group rule to control access from and to DDS DB instances in a security group.You can access a DDS DB instance in either ", + "doc_type":"usermanual", + "kw":"DDS DB instances,Setting a Security Group,Getting Started with Clusters,User Guide", + "title":"Setting a Security Group", + "githuburl":"" + }, + { + "uri":"dds_02_0009.html", + "product_code":"dds", + "code":"28", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Connecting to a Cluster Instance", + "title":"Connecting to a Cluster Instance", + "githuburl":"" + }, + { + "uri":"dds_02_0006.html", + "product_code":"dds", + "code":"29", + "des":"You can access DDS through a private IP address or an EIP. The application scenario of the connection address is as follows:Use a private IP address when:DDS provides a p", + "doc_type":"usermanual", + "kw":"Binding and Unbinding an EIP,Connecting to a Cluster Instance,User Guide", + "title":"Binding and Unbinding an EIP", + "githuburl":"" + }, + { + "uri":"dds_02_0007.html", + "product_code":"dds", + "code":"30", + "des":"DDS allows you to use SSL to encrypt connections to a DB instance to protect your data.If SSL is enabled, you can connect to a database using SSL. For details, see SSL Co", + "doc_type":"usermanual", + "kw":"Enabling or Disabling SSL,Connecting to a Cluster Instance,User Guide", + "title":"Enabling or Disabling SSL", + "githuburl":"" + }, + { + "uri":"en-us_topic_0044018334.html", + "product_code":"dds", + "code":"31", + "des":"This section guides you on how to connect to DB instances through a database client using a common connection or an SSL connection. You are advised to use SSL to encrypt ", + "doc_type":"usermanual", + "kw":"DDS DB instance,DB instance,DB instance,Connecting to a DB Instance Through a Client,Connecting to a", + "title":"Connecting to a DB Instance Through a Client", + "githuburl":"" + }, + { + "uri":"dds_02_replica_set.html", + "product_code":"dds", + "code":"32", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Getting Started with Replica Sets", + "title":"Getting Started with Replica Sets", + "githuburl":"" + }, + { + "uri":"dds_02_0010.html", + "product_code":"dds", + "code":"33", + "des":"This section describes how to create a replica set instance, set a security group, and connect to a replica set instance.Users who create the DDS DB instance for the firs", + "doc_type":"usermanual", + "kw":"Service Process,Getting Started with Replica Sets,User Guide", + "title":"Service Process", + "githuburl":"" + }, + { + "uri":"dds_02_0011.html", + "product_code":"dds", + "code":"34", + "des":"To improve the stability and security of DB instances, there are some restrictions on the use of DDS. For details, see Table 1.", + "doc_type":"usermanual", + "kw":"DDS DB instance,Restrictions,Getting Started with Replica Sets,User Guide", + "title":"Restrictions", + "githuburl":"" + }, + { + "uri":"dds_02_0012.html", + "product_code":"dds", + "code":"35", + "des":"This section describes how to create a DDS replica set instance on the DDS management console. DDS allows you to tailor your computing resources and storage space to your", + "doc_type":"usermanual", + "kw":"DB instance,Creating a Replica Set Instance,Getting Started with Replica Sets,User Guide", + "title":"Creating a Replica Set Instance", + "githuburl":"" + }, + { + "uri":"dds_02_0013.html", + "product_code":"dds", + "code":"36", + "des":"This section guides you on how to add a security group rule to control access from and to DDS DB instances in a security group. This document describes how to set securit", + "doc_type":"usermanual", + "kw":"DDS DB instances,Setting a Security Group,Getting Started with Replica Sets,User Guide", + "title":"Setting a Security Group", + "githuburl":"" + }, + { + "uri":"dds_02_0014.html", + "product_code":"dds", + "code":"37", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Connecting to a Replica Set Instance", + "title":"Connecting to a Replica Set Instance", + "githuburl":"" + }, + { + "uri":"dds_02_0015.html", + "product_code":"dds", + "code":"38", + "des":"You can access DDS through a private IP address or an EIP. The application scenario of the connection address is as follows:Use a private IP address when:DDS provides a p", + "doc_type":"usermanual", + "kw":"Binding and Unbinding an EIP,Connecting to a Replica Set Instance,User Guide", + "title":"Binding and Unbinding an EIP", + "githuburl":"" + }, + { + "uri":"dds_02_0016.html", + "product_code":"dds", + "code":"39", + "des":"DDS allows you to use SSL to encrypt connections to a DB instance to protect your data.If SSL is enabled, you can connect to a database using SSL. For details, see SSL Co", + "doc_type":"usermanual", + "kw":"Enabling or Disabling SSL,Connecting to a Replica Set Instance,User Guide", + "title":"Enabling or Disabling SSL", + "githuburl":"" + }, + { + "uri":"en-us_topic_0105284966.html", + "product_code":"dds", + "code":"40", + "des":"This section guides you on how to connect to DB instances through a database client using a common connection or an SSL connection. You are advised to use SSL to encrypt ", + "doc_type":"usermanual", + "kw":"DDS DB instance,DB instance,DDS DB instance,DDS DB instance,Connecting to a DB Instance Through a Cl", + "title":"Connecting to a DB Instance Through a Client", + "githuburl":"" + }, + { + "uri":"dds_03_0001.html", + "product_code":"dds", + "code":"41", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Managing DDS DB Instances", + "title":"Managing DDS DB Instances", + "githuburl":"" + }, + { + "uri":"dds_03_0002.html", + "product_code":"dds", + "code":"42", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"DB Instance Operations", + "title":"DB Instance Operations", + "githuburl":"" + }, + { + "uri":"dds_03_0075.html", + "product_code":"dds", + "code":"43", + "des":"This section guides you on how to modify the DB instance name to identify different DB instances.If you want to submit the change, click OK. The DB instance name can be 4", + "doc_type":"usermanual", + "kw":"Modifying the DB Instance Name,DB Instance Operations,User Guide", + "title":"Modifying the DB Instance Name", + "githuburl":"" + }, + { + "uri":"dds_03_0051.html", + "product_code":"dds", + "code":"44", + "des":"This section guides you on how to export DB instance information for analysis.", + "doc_type":"usermanual", + "kw":"Exporting DB Instance Information,DB Instance Operations,User Guide", + "title":"Exporting DB Instance Information", + "githuburl":"" + }, + { + "uri":"dds_03_0050.html", + "product_code":"dds", + "code":"45", + "des":"A replica set consists of the primary node, secondary node, and hidden node. Primary and secondary nodes allow access from external services by providing IP addresses. Hi", + "doc_type":"usermanual", + "kw":"Manually Switching the Primary and Secondary Nodes of a Replica Set,DB Instance Operations,User Guid", + "title":"Manually Switching the Primary and Secondary Nodes of a Replica Set", + "githuburl":"" + }, + { + "uri":"dds_03_0003.html", + "product_code":"dds", + "code":"46", + "des":"You may need to restart a DB instance for maintenance purposes. After modifying some parameters, you must restart the DB instance for the modifications to take effect on ", + "doc_type":"usermanual", + "kw":"Restarting a DB Instance or a Node,DB Instance Operations,User Guide", + "title":"Restarting a DB Instance or a Node", + "githuburl":"" + }, + { + "uri":"dds_03_0004.html", + "product_code":"dds", + "code":"47", + "des":"This section guides you on how to delete a DB instance no longer used to release resources. You can delete the following types of DB instances:Cluster instanceReplica set", + "doc_type":"usermanual", + "kw":"Deleting a DB instance,DB Instance Operations,User Guide", + "title":"Deleting a DB instance", + "githuburl":"" + }, + { + "uri":"dds_03_0057.html", + "product_code":"dds", + "code":"48", + "des":"This section guides you through how to create a database account and change the account password to manage the instances you created. When creating a database account for", + "doc_type":"usermanual", + "kw":"DDS DB instance,Managing Database Accounts,Managing DDS DB Instances,User Guide", + "title":"Managing Database Accounts", + "githuburl":"" + }, + { + "uri":"dds_03_0052.html", + "product_code":"dds", + "code":"49", + "des":"DDS supports access through EIPs by enabling public accessibility. You can also access a database through an ECS in the private network.Before migrating data from a Mongo", + "doc_type":"usermanual", + "kw":"MongoDB database,DDS DB instance,DB instance,Migrating Data,Managing DDS DB Instances,User Guide", + "title":"Migrating Data", + "githuburl":"" + }, + { + "uri":"dds_03_0006.html", + "product_code":"dds", + "code":"50", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Backup and Restore", + "title":"Backup and Restore", + "githuburl":"" + }, + { + "uri":"en-us_topic_backup_restore.html", + "product_code":"dds", + "code":"51", + "des":"DDS backs up data automatically based on the automated backup policy you set. You are advised to regularly back up data in your database. If the database becomes faulty o", + "doc_type":"usermanual", + "kw":"Setting Automated Backup Policy,Backup and Restore,User Guide", + "title":"Setting Automated Backup Policy", + "githuburl":"" + }, + { + "uri":"dds_03_0007.html", + "product_code":"dds", + "code":"52", + "des":"This section guides you on how to create a manual backup. Creating a backup for a DB instance helps ensure data can be restored if needed, ensuring data reliability.When ", + "doc_type":"usermanual", + "kw":"Creating a Manual Backup,Backup and Restore,User Guide", + "title":"Creating a Manual Backup", + "githuburl":"" + }, + { + "uri":"dds_03_0042.html", + "product_code":"dds", + "code":"53", + "des":"This section guides you on how to restore a DB instance from a backup.Currently, DDS only supports restoring backups to a new DB instance.You are recommended to deploy th", + "doc_type":"usermanual", + "kw":"Restoring a Cluster Instance from a Backup,Backup and Restore,User Guide", + "title":"Restoring a Cluster Instance from a Backup", + "githuburl":"" + }, + { + "uri":"dds_03_0043.html", + "product_code":"dds", + "code":"54", + "des":"This section guides you on how to restore a replica set instance from a backup.Currently, DDS only supports restoring backups to a new DB instance.You are recommended to ", + "doc_type":"usermanual", + "kw":"Restoring a Replica Set Instance from a Backup,Backup and Restore,User Guide", + "title":"Restoring a Replica Set Instance from a Backup", + "githuburl":"" + }, + { + "uri":"en-us_topic_backup_download.html", + "product_code":"dds", + "code":"55", + "des":"This section describes how to download manual or automated backup files for local data backup or restoration.For details on how to log in to OBS Browser, see section Logg", + "doc_type":"usermanual", + "kw":"Downloading Backup Files,Backup and Restore,User Guide", + "title":"Downloading Backup Files", + "githuburl":"" + }, + { + "uri":"dds_03_0008.html", + "product_code":"dds", + "code":"56", + "des":"This section describes how to delete manual backups to release the storage space.The deletion operation is irreversible. Exercise caution when performing this operation.B", + "doc_type":"usermanual", + "kw":"Deleting a Manual Backup,Backup and Restore,User Guide", + "title":"Deleting a Manual Backup", + "githuburl":"" + }, + { + "uri":"dds_03_0009.html", + "product_code":"dds", + "code":"57", + "des":"This section guides you on how to delete an automated backup. If the automated backup policy is disabled, DDS allows you to delete stored automated backups to release sto", + "doc_type":"usermanual", + "kw":"Deleting an Automated Backup,Backup and Restore,User Guide", + "title":"Deleting an Automated Backup", + "githuburl":"" + }, + { + "uri":"dds_03_0010.html", + "product_code":"dds", + "code":"58", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Parameter Group", + "title":"Parameter Group", + "githuburl":"" + }, + { + "uri":"en-us_topic_parameter_group.html", + "product_code":"dds", + "code":"59", + "des":"DB parameter groups act as a container for engine configuration values that are applied to one or more DB instances. This section guides you on how to create a parameter ", + "doc_type":"usermanual", + "kw":"Creating a Parameter Group,Parameter Group,User Guide", + "title":"Creating a Parameter Group", + "githuburl":"" + }, + { + "uri":"en-us_topic_configuration.html", + "product_code":"dds", + "code":"60", + "des":"This section guides you on how to edit parameters in the parameter groups that you have created to meet your service requirements and achieve optimal performance.Default ", + "doc_type":"usermanual", + "kw":"Editing a Parameter Group,Parameter Group,User Guide", + "title":"Editing a Parameter Group", + "githuburl":"" + }, + { + "uri":"dds_03_0012.html", + "product_code":"dds", + "code":"61", + "des":"This section guides you on how to compare two parameter groups of the same node type and DB engine version to know their current settings.If the settings of the two param", + "doc_type":"usermanual", + "kw":"Comparing Two Parameter Groups,Parameter Group,User Guide", + "title":"Comparing Two Parameter Groups", + "githuburl":"" + }, + { + "uri":"dds_03_0013.html", + "product_code":"dds", + "code":"62", + "des":"This section guides you on how to replicate a parameter group you created and assign it a name different from that of original group.Parameter Group Name: specifies the p", + "doc_type":"usermanual", + "kw":"Replicating a Parameter Group,Parameter Group,User Guide", + "title":"Replicating a Parameter Group", + "githuburl":"" + }, + { + "uri":"dds_03_0014.html", + "product_code":"dds", + "code":"63", + "des":"After a DB instance is created, you can change the parameter group associated with the DB instance to achieve optimal performance. The parameter group associated with the", + "doc_type":"usermanual", + "kw":"Changing Associated Parameter Group,Parameter Group,User Guide", + "title":"Changing Associated Parameter Group", + "githuburl":"" + }, + { + "uri":"dds_03_0015.html", + "product_code":"dds", + "code":"64", + "des":"This section guides you on how to reset all parameters in a parameter group you create to the default settings as needed.Resetting the parameter group will restore the de", + "doc_type":"usermanual", + "kw":"Resetting a Parameter Group,Parameter Group,User Guide", + "title":"Resetting a Parameter Group", + "githuburl":"" + }, + { + "uri":"dds_03_0044.html", + "product_code":"dds", + "code":"65", + "des":"The section describes how to modify the description of the parameter group you created so that you can distinguish and identify parameter groups.", + "doc_type":"usermanual", + "kw":"Changing a Parameter Group Description,Parameter Group,User Guide", + "title":"Changing a Parameter Group Description", + "githuburl":"" + }, + { + "uri":"dds_03_0016.html", + "product_code":"dds", + "code":"66", + "des":"This section guides you on how to delete a parameter group. The following parameter groups cannot be deleted.Default parameter groupsParameter groups associated with DB i", + "doc_type":"usermanual", + "kw":"Deleting a Parameter Group,Parameter Group,User Guide", + "title":"Deleting a Parameter Group", + "githuburl":"" + }, + { + "uri":"dds_03_0017.html", + "product_code":"dds", + "code":"67", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Storage", + "title":"Storage", + "githuburl":"" + }, + { + "uri":"en-us_topic_increase_nodes.html", + "product_code":"dds", + "code":"68", + "des":"This section guides you on how to add nodes to a DB instance.You can add nodes when the instance status is Available, Deleting backup, or Checking restoration.A DB instan", + "doc_type":"usermanual", + "kw":"Adding Cluster Instance Nodes,Storage,User Guide", + "title":"Adding Cluster Instance Nodes", + "githuburl":"" + }, + { + "uri":"dds_03_0018.html", + "product_code":"dds", + "code":"69", + "des":"This section guides you on how to revert nodes that fail to be added.During reversal, the node status is Deleting node. This process takes about 1 to 3 minutes.During del", + "doc_type":"usermanual", + "kw":"Reverting Cluster Instance Nodes,Storage,User Guide", + "title":"Reverting Cluster Instance Nodes", + "githuburl":"" + }, + { + "uri":"en-us_topic_increase_storage.html", + "product_code":"dds", + "code":"70", + "des":"This section guides you on how to scale up the storage space of a DB instance to suit your service requirements.You can scale up a DB instance a maximum of eight times.Yo", + "doc_type":"usermanual", + "kw":"Scaling Up Storage Space,Storage,User Guide", + "title":"Scaling Up Storage Space", + "githuburl":"" + }, + { + "uri":"dds_08_0001.html", + "product_code":"dds", + "code":"71", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Changing DB Instance Classes", + "title":"Changing DB Instance Classes", + "githuburl":"" + }, + { + "uri":"en-us_topic_0104472218.html", + "product_code":"dds", + "code":"72", + "des":"This section guides you on how to change the CPU or memory of a cluster instance.A DB instance cannot be deleted when you are changing its CPU or memory.Instances can be ", + "doc_type":"usermanual", + "kw":"Changing the CPU or Memory of a Cluster DB Instance,Changing DB Instance Classes,User Guide", + "title":"Changing the CPU or Memory of a Cluster DB Instance", + "githuburl":"" + }, + { + "uri":"en-us_topic_0104721795.html", + "product_code":"dds", + "code":"73", + "des":"This section guides you on how to change the CPU or memory of your replica set instance.A DB instance cannot be deleted when you are changing its CPU or memory.Instances ", + "doc_type":"usermanual", + "kw":"Changing the CPU or Memory of a Replica Set DB Instance,Changing DB Instance Classes,User Guide", + "title":"Changing the CPU or Memory of a Replica Set DB Instance", + "githuburl":"" + }, + { + "uri":"dds_03_0019.html", + "product_code":"dds", + "code":"74", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Security", + "title":"Security", + "githuburl":"" + }, + { + "uri":"en-us_topic_reset_password.html", + "product_code":"dds", + "code":"75", + "des":"You are advised to change administrator passwords periodically to prevent password cracking, ensuring system security. You cannot reset the administrator password under t", + "doc_type":"usermanual", + "kw":"Resetting the Administrator Password,Security,User Guide", + "title":"Resetting the Administrator Password", + "githuburl":"" + }, + { + "uri":"en-us_topic_change_database_port.html", + "product_code":"dds", + "code":"76", + "des":"This section guides you on how to modify the database port to ensure system security. The database port cannot be changed when the instance is in any of the following sta", + "doc_type":"usermanual", + "kw":"Changing the Database Port,Security,User Guide", + "title":"Changing the Database Port", + "githuburl":"" + }, + { + "uri":"en-us_topic_change_security_group.html", + "product_code":"dds", + "code":"77", + "des":"This section guides you on how to change the security group of a DB instance. If any of the following operations is in progress, do not change the security group:Adding n", + "doc_type":"usermanual", + "kw":"Changing a Security Group,Security,User Guide", + "title":"Changing a Security Group", + "githuburl":"" + }, + { + "uri":"dds_03_0023.html", + "product_code":"dds", + "code":"78", + "des":"Tag Management Service (TMS) enables you to use tags on the management console to manage resources. TMS works with other cloud services to manage tags. TMS manages tags g", + "doc_type":"usermanual", + "kw":"Tag,Managing DDS DB Instances,User Guide", + "title":"Tag", + "githuburl":"" + }, + { + "uri":"dds_03_0040.html", + "product_code":"dds", + "code":"79", + "des":"This section describes how to view the progress and result of asynchronous tasks on the Task Center page.Currently, only the following tasks can be viewed:Creating a clus", + "doc_type":"usermanual", + "kw":"Task Center,Managing DDS DB Instances,User Guide", + "title":"Task Center", + "githuburl":"" + }, + { + "uri":"dds_03_0024.html", + "product_code":"dds", + "code":"80", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Monitoring", + "title":"Monitoring", + "githuburl":"" + }, + { + "uri":"dds_03_0025.html", + "product_code":"dds", + "code":"81", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Interconnected with Cloud Eye", + "title":"Interconnected with Cloud Eye", + "githuburl":"" + }, + { + "uri":"dds_03_0026.html", + "product_code":"dds", + "code":"82", + "des":"Table 1 lists the DB instance monitoring metrics.DB instance monitoring metricsMetricsUnitCOMMAND Statements per SecondCount/sDELETE Statements per SecondCount/sINSERT St", + "doc_type":"usermanual", + "kw":"DDS Metrics,Interconnected with Cloud Eye,User Guide", + "title":"DDS Metrics", + "githuburl":"" + }, + { + "uri":"dds_03_0027.html", + "product_code":"dds", + "code":"83", + "des":"You can set DDS alarm rules to customize the monitored objects and notification policies. Then, you can learn DDS running status in a timely manner.The DDS alarm rules in", + "doc_type":"usermanual", + "kw":"Setting Alarm Rules,Interconnected with Cloud Eye,User Guide", + "title":"Setting Alarm Rules", + "githuburl":"" + }, + { + "uri":"dds_03_0078.html", + "product_code":"dds", + "code":"84", + "des":"Cloud Eye monitors DDS running statuses. You can obtain the monitoring metrics of DDS on the management console.Monitored data requires a period of time for transmission ", + "doc_type":"usermanual", + "kw":"DDS DB instance,DB instance,DDS DB instance,DB instance,DB instance,Viewing DDS Metrics,Interconnect", + "title":"Viewing DDS Metrics", + "githuburl":"" + }, + { + "uri":"dds_03_0028.html", + "product_code":"dds", + "code":"85", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Interconnecting with CTS", + "title":"Interconnecting with CTS", + "githuburl":"" + }, + { + "uri":"dds_03_0029.html", + "product_code":"dds", + "code":"86", + "des":"With CTS, you can record operations associated with DDS for later query, audit, and backtrack operations.", + "doc_type":"usermanual", + "kw":"Key Operations Recorded by CTS,Interconnecting with CTS,User Guide", + "title":"Key Operations Recorded by CTS", + "githuburl":"" + }, + { + "uri":"dds_03_0032.html", + "product_code":"dds", + "code":"87", + "des":"After CTS is enabled, the tracker starts recording operations on cloud resources. Operation records for the last 7 days are stored on the CTS console.This section describ", + "doc_type":"usermanual", + "kw":"Querying Traces,Interconnecting with CTS,User Guide", + "title":"Querying Traces", + "githuburl":"" + }, + { + "uri":"en-us_topic_error_log.html", + "product_code":"dds", + "code":"88", + "des":"DDS log management allows you to view database-level logs, including warning- and error-level logs generated during database running, which help you analyze system proble", + "doc_type":"usermanual", + "kw":"Error Log,Monitoring,User Guide", + "title":"Error Log", + "githuburl":"" + }, + { + "uri":"en-us_topic_slow_query_log.html", + "product_code":"dds", + "code":"89", + "des":"Slow query logs record statements whose execution period exceeds the value of slowms (100 ms by default), allowing you identify and optimize slowly executed statements.Lo", + "doc_type":"usermanual", + "kw":"Slow Query Log,Monitoring,User Guide", + "title":"Slow Query Log", + "githuburl":"" + }, + { + "uri":"dds_faq_0100.html", + "product_code":"dds", + "code":"90", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"FAQs", + "title":"FAQs", + "githuburl":"" + }, + { + "uri":"dds_faq_0101.html", + "product_code":"dds", + "code":"91", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Common FAQs", + "title":"Common FAQs", + "githuburl":"" + }, + { + "uri":"dds_faq_0001.html", + "product_code":"dds", + "code":"92", + "des":"FailoverDDS uses multiple mongos, replica sets, and shards to ensure data reliability. When a mongos is faulty, the other mongos takes over services immediately to ensure", + "doc_type":"usermanual", + "kw":"What Precautions Should Be Taken When Using DDS?,Common FAQs,User Guide", + "title":"What Precautions Should Be Taken When Using DDS?", + "githuburl":"" + }, + { + "uri":"dds_faq_0002.html", + "product_code":"dds", + "code":"93", + "des":"Formula for a DDS DB instance availability:DDS DB instance availability = (1 – Failure duration/Total service duration) × 100%.", + "doc_type":"usermanual", + "kw":"What Is the Availability of DDS DB Instances?,Common FAQs,User Guide", + "title":"What Is the Availability of DDS DB Instances?", + "githuburl":"" + }, + { + "uri":"dds_faq_0003.html", + "product_code":"dds", + "code":"94", + "des":"You do not need a template to create DDS DB instances. When you create a DB instance, DDS provides different DB instance specifications which are similar to templates.", + "doc_type":"usermanual", + "kw":"Can I Use a Template to Create DDS DB Instances?,Common FAQs,User Guide", + "title":"Can I Use a Template to Create DDS DB Instances?", + "githuburl":"" + }, + { + "uri":"dds_faq_0004.html", + "product_code":"dds", + "code":"95", + "des":"No. Your DDS DB instances and resources are isolated from others.", + "doc_type":"usermanual", + "kw":"Will My DDS DB Instances Be Affected by Other Users' DDS DB Instances?,Common FAQs,User Guide", + "title":"Will My DDS DB Instances Be Affected by Other Users' DDS DB Instances?", + "githuburl":"" + }, + { + "uri":"dds_faq_0102.html", + "product_code":"dds", + "code":"96", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Management FAQs", + "title":"Management FAQs", + "githuburl":"" + }, + { + "uri":"dds_faq_0005.html", + "product_code":"dds", + "code":"97", + "des":"You can view the slow query logs to check whether any slowly executed SQL queries exist and view the performance characteristics of queries (if any) to locate the cause o", + "doc_type":"usermanual", + "kw":"What Should I Do If My Query Is Slow?,Management FAQs,User Guide", + "title":"What Should I Do If My Query Is Slow?", + "githuburl":"" + }, + { + "uri":"dds_faq_0006.html", + "product_code":"dds", + "code":"98", + "des":"The delay for primary/secondary synchronization cannot be calculated using a formula. The delay is affected by the following factors:Network communication statusTransacti", + "doc_type":"usermanual", + "kw":"What Is the Time Delay for Primary/Secondary Synchronization in a Replica Set?,Management FAQs,User ", + "title":"What Is the Time Delay for Primary/Secondary Synchronization in a Replica Set?", + "githuburl":"" + }, + { + "uri":"dds_faq_0007.html", + "product_code":"dds", + "code":"99", + "des":"DDS does not delete or perform any operations on any user data. If this problem occurs, check whether a misoperation has been performed. Restore the data using backup fil", + "doc_type":"usermanual", + "kw":"Why Is Data Missing from My Database?,Management FAQs,User Guide", + "title":"Why Is Data Missing from My Database?", + "githuburl":"" + }, + { + "uri":"dds_faq_0008.html", + "product_code":"dds", + "code":"100", + "des":"If your cloud account is deleted, both your automated and manual backups are deleted.", + "doc_type":"usermanual", + "kw":"Will My Backups Be Deleted If I Delete My Cloud Account?,Management FAQs,User Guide", + "title":"Will My Backups Be Deleted If I Delete My Cloud Account?", + "githuburl":"" + }, + { + "uri":"dds_faq_0009.html", + "product_code":"dds", + "code":"101", + "des":"Yes. Adding shards does not affect the existing shards. Services are still available.", + "doc_type":"usermanual", + "kw":"Are My DDS DB Instances Available When Scaling?,Management FAQs,User Guide", + "title":"Are My DDS DB Instances Available When Scaling?", + "githuburl":"" + }, + { + "uri":"dds_faq_0010.html", + "product_code":"dds", + "code":"102", + "des":"Yes. DDS can perform write operations only on the primary node in a replica set. You can configure DDS to perform read operations on the secondary node to split read and ", + "doc_type":"usermanual", + "kw":"Does DDS Support Read/Write Splitting?,Management FAQs,User Guide", + "title":"Does DDS Support Read/Write Splitting?", + "githuburl":"" + }, + { + "uri":"dds_faq_0104.html", + "product_code":"dds", + "code":"103", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Connection and Access FAQs", + "title":"Connection and Access FAQs", + "githuburl":"" + }, + { + "uri":"dds_faq_0011.html", + "product_code":"dds", + "code":"104", + "des":"You can access the DDS DB instance using the following methods:Create a DDS DB instance and an ECS in the same VPC to enable the ECS to access the instance.If the DDS DB ", + "doc_type":"usermanual", + "kw":"Can an External Server Access the DDS DB Instance?,Connection and Access FAQs,User Guide", + "title":"Can an External Server Access the DDS DB Instance?", + "githuburl":"" + }, + { + "uri":"dds_faq_0012.html", + "product_code":"dds", + "code":"105", + "des":"The number of DDS database connections indicates the number of applications that can be simultaneously connected to the database. Generally, it indicates the number of co", + "doc_type":"usermanual", + "kw":"connected to the database,What Is the Number of DDS Database Connections?,Connection and Access FAQs", + "title":"What Is the Number of DDS Database Connections?", + "githuburl":"" + }, + { + "uri":"dds_faq_0013.html", + "product_code":"dds", + "code":"106", + "des":"Perform the following steps to identify the problem: The following uses the cluster instance as an example.If they are in the same VPC, go to 2.If they are in different V", + "doc_type":"usermanual", + "kw":"What Should I Do If the ECS Cannot Connect to a DDS DB Instance?,Connection and Access FAQs,User Gui", + "title":"What Should I Do If the ECS Cannot Connect to a DDS DB Instance?", + "githuburl":"" + }, + { + "uri":"dds_faq_0014.html", + "product_code":"dds", + "code":"107", + "des":"Identify a DDS DB instance connection failure caused by a client problem from the following aspects.ECS Security PolicyIn Windows, check whether the DDS port is enabled i", + "doc_type":"usermanual", + "kw":"What Should I Do If a Database Client Problem Causes a Connection Failure?,Connection and Access FAQ", + "title":"What Should I Do If a Database Client Problem Causes a Connection Failure?", + "githuburl":"" + }, + { + "uri":"dds_faq_0015.html", + "product_code":"dds", + "code":"108", + "des":"Check whether the following problems occur on the DDS database. Check the following one at a time.The maximum number of connections is reached.Solution: Use the Cloud Eye", + "doc_type":"usermanual", + "kw":"What Should I Do If a DDS Server Problem Causes a Connection Failure?,Connection and Access FAQs,Use", + "title":"What Should I Do If a DDS Server Problem Causes a Connection Failure?", + "githuburl":"" + }, + { + "uri":"dds_faq_0016.html", + "product_code":"dds", + "code":"109", + "des":"Ensure that the ECS where in which your applications are located is in the same VPC and subnet as the DDS DB instance. If the ECS and the DDS DB instance are in different", + "doc_type":"usermanual", + "kw":"How Can My Applications Access a DDS DB Instance in a VPC?,Connection and Access FAQs,User Guide", + "title":"How Can My Applications Access a DDS DB Instance in a VPC?", + "githuburl":"" + }, + { + "uri":"dds_faq_0017.html", + "product_code":"dds", + "code":"110", + "des":"It is recommended that your applications support automatic reconnections to the database. After a database reboot, your applications will automatically reconnect to the d", + "doc_type":"usermanual", + "kw":"connect to the database,Do Applications Need to Support Automatic Reconnecting to the DDS Database?,", + "title":"Do Applications Need to Support Automatic Reconnecting to the DDS Database?", + "githuburl":"" + }, + { + "uri":"dds_faq_0034.html", + "product_code":"dds", + "code":"111", + "des":"For details on how to create and log in to an ECS, see \"Creating and Logging In to a Windows ECS\" or \"Creating and Logging In to a Linux ECS\" in the Elastic Cloud Server ", + "doc_type":"usermanual", + "kw":"How Can I Create and Log In to an ECS?,Connection and Access FAQs,User Guide", + "title":"How Can I Create and Log In to an ECS?", + "githuburl":"" + }, + { + "uri":"dds_faq_0018.html", + "product_code":"dds", + "code":"112", + "des":"MongoDB official website provides client installation packages for different OSs. Download the official binary installation package at https://www.mongodb.com/download-ce", + "doc_type":"usermanual", + "kw":"How Can I Install a MongoDB Client?,Connection and Access FAQs,User Guide", + "title":"How Can I Install a MongoDB Client?", + "githuburl":"" + }, + { + "uri":"dds_faq_0108.html", + "product_code":"dds", + "code":"113", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Parameter and Metric FAQs", + "title":"Parameter and Metric FAQs", + "githuburl":"" + }, + { + "uri":"dds_faq_0019.html", + "product_code":"dds", + "code":"114", + "des":"You need to focus on the CPU, memory, and storage space usage.You can configure DDS to report alarms as needed. If an alarm is reported, you can take proper measures to c", + "doc_type":"usermanual", + "kw":"What DB Instance Monitoring Metrics Do I Need to Pay Attention To?,Parameter and Metric FAQs,User Gu", + "title":"What DB Instance Monitoring Metrics Do I Need to Pay Attention To?", + "githuburl":"" + }, + { + "uri":"dds_faq_0110.html", + "product_code":"dds", + "code":"115", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Network and Security FAQs", + "title":"Network and Security FAQs", + "githuburl":"" + }, + { + "uri":"dds_faq_0021.html", + "product_code":"dds", + "code":"116", + "des":"DDS allows you to set the VPC which DDS DB instances belong to, ensuring that the DDS DB instances are isolated from other services. In addition, the IAM service is provi", + "doc_type":"usermanual", + "kw":"What Security Protection Policies Does DDS Have?,Network and Security FAQs,User Guide", + "title":"What Security Protection Policies Does DDS Have?", + "githuburl":"" + }, + { + "uri":"dds_faq_0022.html", + "product_code":"dds", + "code":"117", + "des":"A VPC allows you to create virtual network environment in a private and isolated network to control the private IP address range, subnets, route tables, and network gatew", + "doc_type":"usermanual", + "kw":"Do I Need to Use DDS in a VPC?,Network and Security FAQs,User Guide", + "title":"Do I Need to Use DDS in a VPC?", + "githuburl":"" + }, + { + "uri":"dds_faq_0023.html", + "product_code":"dds", + "code":"118", + "des":"The VPC security group helps ensure the security of DDS in a VPC. In addition, ACL can be used to allow or reject I/O network traffic for each subnet. Use the internal se", + "doc_type":"usermanual", + "kw":"How Do I Ensure the Security of DDS in a VPC?,Network and Security FAQs,User Guide", + "title":"How Do I Ensure the Security of DDS in a VPC?", + "githuburl":"" + }, + { + "uri":"dds_faq_0109.html", + "product_code":"dds", + "code":"119", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Storage FAQs", + "title":"Storage FAQs", + "githuburl":"" + }, + { + "uri":"dds_faq_0025.html", + "product_code":"dds", + "code":"120", + "des":"You can store DDS backup data on the ECS using mongoexport. However, you are advised not to store database backups on ECSs. You are advised to use the DDS backup function", + "doc_type":"usermanual", + "kw":"How Do I Back Up DDS to ECS?,Storage FAQs,User Guide", + "title":"How Do I Back Up DDS to ECS?", + "githuburl":"" + }, + { + "uri":"dds_faq_0026.html", + "product_code":"dds", + "code":"121", + "des":"The automated backup retention period is 7 days by default. You can set a backup retention period from 1 to 732 days. There is no limit on the manual backup retention per", + "doc_type":"usermanual", + "kw":"How Long Does DDS Store Backup Data For?,Storage FAQs,User Guide", + "title":"How Long Does DDS Store Backup Data For?", + "githuburl":"" + }, + { + "uri":"dds_faq_0028.html", + "product_code":"dds", + "code":"122", + "des":"The EVS is used for data storage of DDS DB instances. For details on the EVS, see Elastic Volume Service User Guide.The DDS DB instance backup data is stored in the OBS a", + "doc_type":"usermanual", + "kw":"What Is the DDS DB Instance Storage Configuration?,Storage FAQs,User Guide", + "title":"What Is the DDS DB Instance Storage Configuration?", + "githuburl":"" + }, + { + "uri":"dds_faq_0029.html", + "product_code":"dds", + "code":"123", + "des":"If the storage space required by your applications exceeds the allowed maximum space allocated to you, you can do either of the following:Scale up storage space.Add shard", + "doc_type":"usermanual", + "kw":"What Should I Do If My Data Exceeds the Database Storage Space of a DDS DB Instance?,Storage FAQs,Us", + "title":"What Should I Do If My Data Exceeds the Database Storage Space of a DDS DB Instance?", + "githuburl":"" + }, + { + "uri":"dds_faq_0030.html", + "product_code":"dds", + "code":"124", + "des":"Both your common data (excluding backup data) and data required for ensuring DB instance proper running occupy the storage space on your purchased DDS DB instances. To en", + "doc_type":"usermanual", + "kw":"Which Items Occupy the Storage Space on My Purchased DDS DB Instances?,Storage FAQs,User Guide", + "title":"Which Items Occupy the Storage Space on My Purchased DDS DB Instances?", + "githuburl":"" + }, + { + "uri":"dds_faq_0031.html", + "product_code":"dds", + "code":"125", + "des":"The storage space you applied for will contain the system overhead required for inode, reserved block, and database operation.", + "doc_type":"usermanual", + "kw":"What Overhead Does the Storage Space Have After I Applied for a DDS DB Instance?,Storage FAQs,User G", + "title":"What Overhead Does the Storage Space Have After I Applied for a DDS DB Instance?", + "githuburl":"" + }, + { + "uri":"dds_faq_0032.html", + "product_code":"dds", + "code":"126", + "des":"Logs and files listed in the following table occupy storage space.", + "doc_type":"usermanual", + "kw":"Which Types of Logs and Files Occupy DDS DB Instance Storage Space?,Storage FAQs,User Guide", + "title":"Which Types of Logs and Files Occupy DDS DB Instance Storage Space?", + "githuburl":"" + }, + { + "uri":"dds_faq_0033.html", + "product_code":"dds", + "code":"127", + "des":"The following tables list the commands supported and restricted by DDS.", + "doc_type":"usermanual", + "kw":"Which Commands are Supported or Restricted by DDS?,FAQs,User Guide", + "title":"Which Commands are Supported or Restricted by DDS?", + "githuburl":"" + }, + { + "uri":"dds_change_history.html", + "product_code":"dds", + "code":"128", + "des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "doc_type":"usermanual", + "kw":"Change History,User Guide", + "title":"Change History", + "githuburl":"" + }, + { + "uri":"dds_glossary.html", + "product_code":"dds", + "code":"129", + "des":"For details about the glossaries in this document, see Glossary.", + "doc_type":"usermanual", + "kw":"Glossary,User Guide", + "title":"Glossary", + "githuburl":"" + } +] \ No newline at end of file diff --git a/docs/dds/umn/CLASS.TXT.json b/docs/dds/umn/CLASS.TXT.json new file mode 100644 index 000000000..96a1b9421 --- /dev/null +++ b/docs/dds/umn/CLASS.TXT.json @@ -0,0 +1,1163 @@ +[ + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Introduction", + "uri":"en-us_topic_user_guide.html", + "doc_type":"usermanual", + "p_code":"", + "code":"1" + }, + { + "desc":"Document Database Service (DDS) is compatible with MongoDB and is secure, highly available, reliable, scalable, and easy to use. It provides DB instance creation, scaling", + "product_code":"dds", + "title":"What Is DDS?", + "uri":"en-us_topic_introduction.html", + "doc_type":"usermanual", + "p_code":"1", + "code":"2" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"System Architecture", + "uri":"dds_01_0021.html", + "doc_type":"usermanual", + "p_code":"1", + "code":"3" + }, + { + "desc":"Each DDS cluster is an independent document database. A sharded cluster consists of mongos, config, and shard.Data read and write requests are forwarded by mongos. A mong", + "product_code":"dds", + "title":"Cluster Architecture", + "uri":"dds_01_0011.html", + "doc_type":"usermanual", + "p_code":"3", + "code":"4" + }, + { + "desc":"A replica set consists of a set of mongod processes and provides a collection of data nodes to ensure data redundancy and reliability.For details about the mongod process", + "product_code":"dds", + "title":"Replica Set Architecture", + "uri":"dds_01_0012.html", + "doc_type":"usermanual", + "p_code":"3", + "code":"5" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Basic Concepts", + "uri":"dds_01_0001.html", + "doc_type":"usermanual", + "p_code":"1", + "code":"6" + }, + { + "desc":"DDS cluster instances consist of mongos, config, and shard nodes. The following diagram shows the node relationships.A mongos is a router for reading and writing data, pr", + "product_code":"dds", + "title":"Cluster", + "uri":"dds_01_0002.html", + "doc_type":"usermanual", + "p_code":"6", + "code":"7" + }, + { + "desc":"A database parameter group is a collection of configuration parameters and values and can be applied to multiple DB instances.", + "product_code":"dds", + "title":"Database Parameter Group", + "uri":"dds_01_0005.html", + "doc_type":"usermanual", + "p_code":"6", + "code":"8" + }, + { + "desc":"A region is a geographic area in which resources used by DDS are located.Each region comprises one or more AZs and is completely isolated from other regions. AZs within t", + "product_code":"dds", + "title":"Regions and AZs", + "uri":"dds_01_0027.html", + "doc_type":"usermanual", + "p_code":"6", + "code":"9" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Product Advantages", + "uri":"dds_01_0006.html", + "doc_type":"usermanual", + "p_code":"1", + "code":"10" + }, + { + "desc":"The three-node replica set architecture of DDS ensures high service availability.In a replica set, both the primary and secondary nodes provide services. If a primary nod", + "product_code":"dds", + "title":"High Reliability", + "uri":"dds_01_0007.html", + "doc_type":"usermanual", + "p_code":"10", + "code":"11" + }, + { + "desc":"DDS uses Virtual Private Clouds (VPCs) and network security groups to isolate your DB instances. VPCs allow you to configure IP address ranges that are allowed access to ", + "product_code":"dds", + "title":"High Security", + "uri":"dds_01_0008.html", + "doc_type":"usermanual", + "p_code":"10", + "code":"12" + }, + { + "desc":"You can create a DB instance on the management console and access DDS through an Elastic Cloud Server (ECS) to reduce the application response time. If you need to access", + "product_code":"dds", + "title":"Ease of Use", + "uri":"dds_01_0010.html", + "doc_type":"usermanual", + "p_code":"10", + "code":"13" + }, + { + "desc":"DDS supports the cluster mode. You can select multiple mongos and shards. When your service changes or the current instance configuration cannot meet the application perf", + "product_code":"dds", + "title":"Scalability", + "uri":"dds_01_0009.html", + "doc_type":"usermanual", + "p_code":"10", + "code":"14" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"DDS DB Instance", + "uri":"dds_01_0013.html", + "doc_type":"usermanual", + "p_code":"1", + "code":"15" + }, + { + "desc":"DB instance specifications are listed in the following table.DB instance specifications vary depending on the actual environment.For details about the cluster instance sp", + "product_code":"dds", + "title":"DB Instance Specifications", + "uri":"dds_01_0024.html", + "doc_type":"usermanual", + "p_code":"15", + "code":"16" + }, + { + "desc":"Currently, DDS is compatible with MongoDB 3.2 and 3.4 Community Edition and supports the WiredTiger storage engine, so you need to use a driver compatible with MongoDB 3.", + "product_code":"dds", + "title":"Database Engine and Version", + "uri":"dds_01_0014.html", + "doc_type":"usermanual", + "p_code":"15", + "code":"17" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Database Status", + "uri":"dds_01_0026.html", + "doc_type":"usermanual", + "p_code":"15", + "code":"18" + }, + { + "desc":"Mobile Apps and MapsDDS supports two-dimensional space indexes for mobile applications (Apps) and maps that have location query requests. In addition, the dynamic storage", + "product_code":"dds", + "title":"Typical Application Scenarios", + "uri":"dds_01_0015.html", + "doc_type":"usermanual", + "p_code":"1", + "code":"19" + }, + { + "desc":"ECS provides DDS with elastic computing resources. DDS needs to apply for resources from ECS to build a running environment for DB instances.For more information, see the", + "product_code":"dds", + "title":"Related Services", + "uri":"dds_01_0016.html", + "doc_type":"usermanual", + "p_code":"1", + "code":"20" + }, + { + "desc":"DDS provides two types of user permissions by default: user management and resource management.User management refers to the management of users, user groups, and user gr", + "product_code":"dds", + "title":"User Permissions", + "uri":"dds_01_0017.html", + "doc_type":"usermanual", + "p_code":"1", + "code":"21" + }, + { + "desc":"You have registered an account.For the first time you use DDS, register an account at the official website. After the registration, your account has permissions to access", + "product_code":"dds", + "title":"Logging In to the DDS Console", + "uri":"dds_02_0043.html", + "doc_type":"usermanual", + "p_code":"", + "code":"22" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Getting Started with Clusters", + "uri":"dds_02_cluster.html", + "doc_type":"usermanual", + "p_code":"", + "code":"23" + }, + { + "desc":"This section describes how to create a cluster instance, set a security group, and connect to a cluster instance.Users who create the DDS DB instance for the first time.U", + "product_code":"dds", + "title":"Service Process", + "uri":"dds_02_0003.html", + "doc_type":"usermanual", + "p_code":"23", + "code":"24" + }, + { + "desc":"To improve the stability and security of DB instances, there are some restrictions on the use of DDS. For details, see Table 1.", + "product_code":"dds", + "title":"Restrictions", + "uri":"dds_02_0002.html", + "doc_type":"usermanual", + "p_code":"23", + "code":"25" + }, + { + "desc":"This section describes how to create a DDS cluster instance of Community Edition on the DDS management console. DDS allows you to tailor your computing resources and stor", + "product_code":"dds", + "title":"Creating a Cluster Instance", + "uri":"dds_02_0008.html", + "doc_type":"usermanual", + "p_code":"23", + "code":"26" + }, + { + "desc":"This section guides you on how to add a security group rule to control access from and to DDS DB instances in a security group.You can access a DDS DB instance in either ", + "product_code":"dds", + "title":"Setting a Security Group", + "uri":"dds_02_0005.html", + "doc_type":"usermanual", + "p_code":"23", + "code":"27" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Connecting to a Cluster Instance", + "uri":"dds_02_0009.html", + "doc_type":"usermanual", + "p_code":"23", + "code":"28" + }, + { + "desc":"You can access DDS through a private IP address or an EIP. The application scenario of the connection address is as follows:Use a private IP address when:DDS provides a p", + "product_code":"dds", + "title":"Binding and Unbinding an EIP", + "uri":"dds_02_0006.html", + "doc_type":"usermanual", + "p_code":"28", + "code":"29" + }, + { + "desc":"DDS allows you to use SSL to encrypt connections to a DB instance to protect your data.If SSL is enabled, you can connect to a database using SSL. For details, see SSL Co", + "product_code":"dds", + "title":"Enabling or Disabling SSL", + "uri":"dds_02_0007.html", + "doc_type":"usermanual", + "p_code":"28", + "code":"30" + }, + { + "desc":"This section guides you on how to connect to DB instances through a database client using a common connection or an SSL connection. You are advised to use SSL to encrypt ", + "product_code":"dds", + "title":"Connecting to a DB Instance Through a Client", + "uri":"en-us_topic_0044018334.html", + "doc_type":"usermanual", + "p_code":"28", + "code":"31" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Getting Started with Replica Sets", + "uri":"dds_02_replica_set.html", + "doc_type":"usermanual", + "p_code":"", + "code":"32" + }, + { + "desc":"This section describes how to create a replica set instance, set a security group, and connect to a replica set instance.Users who create the DDS DB instance for the firs", + "product_code":"dds", + "title":"Service Process", + "uri":"dds_02_0010.html", + "doc_type":"usermanual", + "p_code":"32", + "code":"33" + }, + { + "desc":"To improve the stability and security of DB instances, there are some restrictions on the use of DDS. For details, see Table 1.", + "product_code":"dds", + "title":"Restrictions", + "uri":"dds_02_0011.html", + "doc_type":"usermanual", + "p_code":"32", + "code":"34" + }, + { + "desc":"This section describes how to create a DDS replica set instance on the DDS management console. DDS allows you to tailor your computing resources and storage space to your", + "product_code":"dds", + "title":"Creating a Replica Set Instance", + "uri":"dds_02_0012.html", + "doc_type":"usermanual", + "p_code":"32", + "code":"35" + }, + { + "desc":"This section guides you on how to add a security group rule to control access from and to DDS DB instances in a security group. This document describes how to set securit", + "product_code":"dds", + "title":"Setting a Security Group", + "uri":"dds_02_0013.html", + "doc_type":"usermanual", + "p_code":"32", + "code":"36" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Connecting to a Replica Set Instance", + "uri":"dds_02_0014.html", + "doc_type":"usermanual", + "p_code":"32", + "code":"37" + }, + { + "desc":"You can access DDS through a private IP address or an EIP. The application scenario of the connection address is as follows:Use a private IP address when:DDS provides a p", + "product_code":"dds", + "title":"Binding and Unbinding an EIP", + "uri":"dds_02_0015.html", + "doc_type":"usermanual", + "p_code":"37", + "code":"38" + }, + { + "desc":"DDS allows you to use SSL to encrypt connections to a DB instance to protect your data.If SSL is enabled, you can connect to a database using SSL. For details, see SSL Co", + "product_code":"dds", + "title":"Enabling or Disabling SSL", + "uri":"dds_02_0016.html", + "doc_type":"usermanual", + "p_code":"37", + "code":"39" + }, + { + "desc":"This section guides you on how to connect to DB instances through a database client using a common connection or an SSL connection. You are advised to use SSL to encrypt ", + "product_code":"dds", + "title":"Connecting to a DB Instance Through a Client", + "uri":"en-us_topic_0105284966.html", + "doc_type":"usermanual", + "p_code":"37", + "code":"40" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Managing DDS DB Instances", + "uri":"dds_03_0001.html", + "doc_type":"usermanual", + "p_code":"", + "code":"41" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"DB Instance Operations", + "uri":"dds_03_0002.html", + "doc_type":"usermanual", + "p_code":"41", + "code":"42" + }, + { + "desc":"This section guides you on how to modify the DB instance name to identify different DB instances.If you want to submit the change, click OK. The DB instance name can be 4", + "product_code":"dds", + "title":"Modifying the DB Instance Name", + "uri":"dds_03_0075.html", + "doc_type":"usermanual", + "p_code":"42", + "code":"43" + }, + { + "desc":"This section guides you on how to export DB instance information for analysis.", + "product_code":"dds", + "title":"Exporting DB Instance Information", + "uri":"dds_03_0051.html", + "doc_type":"usermanual", + "p_code":"42", + "code":"44" + }, + { + "desc":"A replica set consists of the primary node, secondary node, and hidden node. Primary and secondary nodes allow access from external services by providing IP addresses. Hi", + "product_code":"dds", + "title":"Manually Switching the Primary and Secondary Nodes of a Replica Set", + "uri":"dds_03_0050.html", + "doc_type":"usermanual", + "p_code":"42", + "code":"45" + }, + { + "desc":"You may need to restart a DB instance for maintenance purposes. After modifying some parameters, you must restart the DB instance for the modifications to take effect on ", + "product_code":"dds", + "title":"Restarting a DB Instance or a Node", + "uri":"dds_03_0003.html", + "doc_type":"usermanual", + "p_code":"42", + "code":"46" + }, + { + "desc":"This section guides you on how to delete a DB instance no longer used to release resources. You can delete the following types of DB instances:Cluster instanceReplica set", + "product_code":"dds", + "title":"Deleting a DB instance", + "uri":"dds_03_0004.html", + "doc_type":"usermanual", + "p_code":"42", + "code":"47" + }, + { + "desc":"This section guides you through how to create a database account and change the account password to manage the instances you created. When creating a database account for", + "product_code":"dds", + "title":"Managing Database Accounts", + "uri":"dds_03_0057.html", + "doc_type":"usermanual", + "p_code":"41", + "code":"48" + }, + { + "desc":"DDS supports access through EIPs by enabling public accessibility. You can also access a database through an ECS in the private network.Before migrating data from a Mongo", + "product_code":"dds", + "title":"Migrating Data", + "uri":"dds_03_0052.html", + "doc_type":"usermanual", + "p_code":"41", + "code":"49" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Backup and Restore", + "uri":"dds_03_0006.html", + "doc_type":"usermanual", + "p_code":"41", + "code":"50" + }, + { + "desc":"DDS backs up data automatically based on the automated backup policy you set. You are advised to regularly back up data in your database. If the database becomes faulty o", + "product_code":"dds", + "title":"Setting Automated Backup Policy", + "uri":"en-us_topic_backup_restore.html", + "doc_type":"usermanual", + "p_code":"50", + "code":"51" + }, + { + "desc":"This section guides you on how to create a manual backup. Creating a backup for a DB instance helps ensure data can be restored if needed, ensuring data reliability.When ", + "product_code":"dds", + "title":"Creating a Manual Backup", + "uri":"dds_03_0007.html", + "doc_type":"usermanual", + "p_code":"50", + "code":"52" + }, + { + "desc":"This section guides you on how to restore a DB instance from a backup.Currently, DDS only supports restoring backups to a new DB instance.You are recommended to deploy th", + "product_code":"dds", + "title":"Restoring a Cluster Instance from a Backup", + "uri":"dds_03_0042.html", + "doc_type":"usermanual", + "p_code":"50", + "code":"53" + }, + { + "desc":"This section guides you on how to restore a replica set instance from a backup.Currently, DDS only supports restoring backups to a new DB instance.You are recommended to ", + "product_code":"dds", + "title":"Restoring a Replica Set Instance from a Backup", + "uri":"dds_03_0043.html", + "doc_type":"usermanual", + "p_code":"50", + "code":"54" + }, + { + "desc":"This section describes how to download manual or automated backup files for local data backup or restoration.For details on how to log in to OBS Browser, see section Logg", + "product_code":"dds", + "title":"Downloading Backup Files", + "uri":"en-us_topic_backup_download.html", + "doc_type":"usermanual", + "p_code":"50", + "code":"55" + }, + { + "desc":"This section describes how to delete manual backups to release the storage space.The deletion operation is irreversible. Exercise caution when performing this operation.B", + "product_code":"dds", + "title":"Deleting a Manual Backup", + "uri":"dds_03_0008.html", + "doc_type":"usermanual", + "p_code":"50", + "code":"56" + }, + { + "desc":"This section guides you on how to delete an automated backup. If the automated backup policy is disabled, DDS allows you to delete stored automated backups to release sto", + "product_code":"dds", + "title":"Deleting an Automated Backup", + "uri":"dds_03_0009.html", + "doc_type":"usermanual", + "p_code":"50", + "code":"57" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Parameter Group", + "uri":"dds_03_0010.html", + "doc_type":"usermanual", + "p_code":"41", + "code":"58" + }, + { + "desc":"DB parameter groups act as a container for engine configuration values that are applied to one or more DB instances. This section guides you on how to create a parameter ", + "product_code":"dds", + "title":"Creating a Parameter Group", + "uri":"en-us_topic_parameter_group.html", + "doc_type":"usermanual", + "p_code":"58", + "code":"59" + }, + { + "desc":"This section guides you on how to edit parameters in the parameter groups that you have created to meet your service requirements and achieve optimal performance.Default ", + "product_code":"dds", + "title":"Editing a Parameter Group", + "uri":"en-us_topic_configuration.html", + "doc_type":"usermanual", + "p_code":"58", + "code":"60" + }, + { + "desc":"This section guides you on how to compare two parameter groups of the same node type and DB engine version to know their current settings.If the settings of the two param", + "product_code":"dds", + "title":"Comparing Two Parameter Groups", + "uri":"dds_03_0012.html", + "doc_type":"usermanual", + "p_code":"58", + "code":"61" + }, + { + "desc":"This section guides you on how to replicate a parameter group you created and assign it a name different from that of original group.Parameter Group Name: specifies the p", + "product_code":"dds", + "title":"Replicating a Parameter Group", + "uri":"dds_03_0013.html", + "doc_type":"usermanual", + "p_code":"58", + "code":"62" + }, + { + "desc":"After a DB instance is created, you can change the parameter group associated with the DB instance to achieve optimal performance. The parameter group associated with the", + "product_code":"dds", + "title":"Changing Associated Parameter Group", + "uri":"dds_03_0014.html", + "doc_type":"usermanual", + "p_code":"58", + "code":"63" + }, + { + "desc":"This section guides you on how to reset all parameters in a parameter group you create to the default settings as needed.Resetting the parameter group will restore the de", + "product_code":"dds", + "title":"Resetting a Parameter Group", + "uri":"dds_03_0015.html", + "doc_type":"usermanual", + "p_code":"58", + "code":"64" + }, + { + "desc":"The section describes how to modify the description of the parameter group you created so that you can distinguish and identify parameter groups.", + "product_code":"dds", + "title":"Changing a Parameter Group Description", + "uri":"dds_03_0044.html", + "doc_type":"usermanual", + "p_code":"58", + "code":"65" + }, + { + "desc":"This section guides you on how to delete a parameter group. The following parameter groups cannot be deleted.Default parameter groupsParameter groups associated with DB i", + "product_code":"dds", + "title":"Deleting a Parameter Group", + "uri":"dds_03_0016.html", + "doc_type":"usermanual", + "p_code":"58", + "code":"66" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Storage", + "uri":"dds_03_0017.html", + "doc_type":"usermanual", + "p_code":"41", + "code":"67" + }, + { + "desc":"This section guides you on how to add nodes to a DB instance.You can add nodes when the instance status is Available, Deleting backup, or Checking restoration.A DB instan", + "product_code":"dds", + "title":"Adding Cluster Instance Nodes", + "uri":"en-us_topic_increase_nodes.html", + "doc_type":"usermanual", + "p_code":"67", + "code":"68" + }, + { + "desc":"This section guides you on how to revert nodes that fail to be added.During reversal, the node status is Deleting node. This process takes about 1 to 3 minutes.During del", + "product_code":"dds", + "title":"Reverting Cluster Instance Nodes", + "uri":"dds_03_0018.html", + "doc_type":"usermanual", + "p_code":"67", + "code":"69" + }, + { + "desc":"This section guides you on how to scale up the storage space of a DB instance to suit your service requirements.You can scale up a DB instance a maximum of eight times.Yo", + "product_code":"dds", + "title":"Scaling Up Storage Space", + "uri":"en-us_topic_increase_storage.html", + "doc_type":"usermanual", + "p_code":"67", + "code":"70" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Changing DB Instance Classes", + "uri":"dds_08_0001.html", + "doc_type":"usermanual", + "p_code":"41", + "code":"71" + }, + { + "desc":"This section guides you on how to change the CPU or memory of a cluster instance.A DB instance cannot be deleted when you are changing its CPU or memory.Instances can be ", + "product_code":"dds", + "title":"Changing the CPU or Memory of a Cluster DB Instance", + "uri":"en-us_topic_0104472218.html", + "doc_type":"usermanual", + "p_code":"71", + "code":"72" + }, + { + "desc":"This section guides you on how to change the CPU or memory of your replica set instance.A DB instance cannot be deleted when you are changing its CPU or memory.Instances ", + "product_code":"dds", + "title":"Changing the CPU or Memory of a Replica Set DB Instance", + "uri":"en-us_topic_0104721795.html", + "doc_type":"usermanual", + "p_code":"71", + "code":"73" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Security", + "uri":"dds_03_0019.html", + "doc_type":"usermanual", + "p_code":"41", + "code":"74" + }, + { + "desc":"You are advised to change administrator passwords periodically to prevent password cracking, ensuring system security. You cannot reset the administrator password under t", + "product_code":"dds", + "title":"Resetting the Administrator Password", + "uri":"en-us_topic_reset_password.html", + "doc_type":"usermanual", + "p_code":"74", + "code":"75" + }, + { + "desc":"This section guides you on how to modify the database port to ensure system security. The database port cannot be changed when the instance is in any of the following sta", + "product_code":"dds", + "title":"Changing the Database Port", + "uri":"en-us_topic_change_database_port.html", + "doc_type":"usermanual", + "p_code":"74", + "code":"76" + }, + { + "desc":"This section guides you on how to change the security group of a DB instance. If any of the following operations is in progress, do not change the security group:Adding n", + "product_code":"dds", + "title":"Changing a Security Group", + "uri":"en-us_topic_change_security_group.html", + "doc_type":"usermanual", + "p_code":"74", + "code":"77" + }, + { + "desc":"Tag Management Service (TMS) enables you to use tags on the management console to manage resources. TMS works with other cloud services to manage tags. TMS manages tags g", + "product_code":"dds", + "title":"Tag", + "uri":"dds_03_0023.html", + "doc_type":"usermanual", + "p_code":"41", + "code":"78" + }, + { + "desc":"This section describes how to view the progress and result of asynchronous tasks on the Task Center page.Currently, only the following tasks can be viewed:Creating a clus", + "product_code":"dds", + "title":"Task Center", + "uri":"dds_03_0040.html", + "doc_type":"usermanual", + "p_code":"41", + "code":"79" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Monitoring", + "uri":"dds_03_0024.html", + "doc_type":"usermanual", + "p_code":"", + "code":"80" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Interconnected with Cloud Eye", + "uri":"dds_03_0025.html", + "doc_type":"usermanual", + "p_code":"80", + "code":"81" + }, + { + "desc":"Table 1 lists the DB instance monitoring metrics.DB instance monitoring metricsMetricsUnitCOMMAND Statements per SecondCount/sDELETE Statements per SecondCount/sINSERT St", + "product_code":"dds", + "title":"DDS Metrics", + "uri":"dds_03_0026.html", + "doc_type":"usermanual", + "p_code":"81", + "code":"82" + }, + { + "desc":"You can set DDS alarm rules to customize the monitored objects and notification policies. Then, you can learn DDS running status in a timely manner.The DDS alarm rules in", + "product_code":"dds", + "title":"Setting Alarm Rules", + "uri":"dds_03_0027.html", + "doc_type":"usermanual", + "p_code":"81", + "code":"83" + }, + { + "desc":"Cloud Eye monitors DDS running statuses. You can obtain the monitoring metrics of DDS on the management console.Monitored data requires a period of time for transmission ", + "product_code":"dds", + "title":"Viewing DDS Metrics", + "uri":"dds_03_0078.html", + "doc_type":"usermanual", + "p_code":"81", + "code":"84" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Interconnecting with CTS", + "uri":"dds_03_0028.html", + "doc_type":"usermanual", + "p_code":"80", + "code":"85" + }, + { + "desc":"With CTS, you can record operations associated with DDS for later query, audit, and backtrack operations.", + "product_code":"dds", + "title":"Key Operations Recorded by CTS", + "uri":"dds_03_0029.html", + "doc_type":"usermanual", + "p_code":"85", + "code":"86" + }, + { + "desc":"After CTS is enabled, the tracker starts recording operations on cloud resources. Operation records for the last 7 days are stored on the CTS console.This section describ", + "product_code":"dds", + "title":"Querying Traces", + "uri":"dds_03_0032.html", + "doc_type":"usermanual", + "p_code":"85", + "code":"87" + }, + { + "desc":"DDS log management allows you to view database-level logs, including warning- and error-level logs generated during database running, which help you analyze system proble", + "product_code":"dds", + "title":"Error Log", + "uri":"en-us_topic_error_log.html", + "doc_type":"usermanual", + "p_code":"80", + "code":"88" + }, + { + "desc":"Slow query logs record statements whose execution period exceeds the value of slowms (100 ms by default), allowing you identify and optimize slowly executed statements.Lo", + "product_code":"dds", + "title":"Slow Query Log", + "uri":"en-us_topic_slow_query_log.html", + "doc_type":"usermanual", + "p_code":"80", + "code":"89" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"FAQs", + "uri":"dds_faq_0100.html", + "doc_type":"usermanual", + "p_code":"", + "code":"90" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Common FAQs", + "uri":"dds_faq_0101.html", + "doc_type":"usermanual", + "p_code":"90", + "code":"91" + }, + { + "desc":"FailoverDDS uses multiple mongos, replica sets, and shards to ensure data reliability. When a mongos is faulty, the other mongos takes over services immediately to ensure", + "product_code":"dds", + "title":"What Precautions Should Be Taken When Using DDS?", + "uri":"dds_faq_0001.html", + "doc_type":"usermanual", + "p_code":"91", + "code":"92" + }, + { + "desc":"Formula for a DDS DB instance availability:DDS DB instance availability = (1 – Failure duration/Total service duration) × 100%.", + "product_code":"dds", + "title":"What Is the Availability of DDS DB Instances?", + "uri":"dds_faq_0002.html", + "doc_type":"usermanual", + "p_code":"91", + "code":"93" + }, + { + "desc":"You do not need a template to create DDS DB instances. When you create a DB instance, DDS provides different DB instance specifications which are similar to templates.", + "product_code":"dds", + "title":"Can I Use a Template to Create DDS DB Instances?", + "uri":"dds_faq_0003.html", + "doc_type":"usermanual", + "p_code":"91", + "code":"94" + }, + { + "desc":"No. Your DDS DB instances and resources are isolated from others.", + "product_code":"dds", + "title":"Will My DDS DB Instances Be Affected by Other Users' DDS DB Instances?", + "uri":"dds_faq_0004.html", + "doc_type":"usermanual", + "p_code":"91", + "code":"95" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Management FAQs", + "uri":"dds_faq_0102.html", + "doc_type":"usermanual", + "p_code":"90", + "code":"96" + }, + { + "desc":"You can view the slow query logs to check whether any slowly executed SQL queries exist and view the performance characteristics of queries (if any) to locate the cause o", + "product_code":"dds", + "title":"What Should I Do If My Query Is Slow?", + "uri":"dds_faq_0005.html", + "doc_type":"usermanual", + "p_code":"96", + "code":"97" + }, + { + "desc":"The delay for primary/secondary synchronization cannot be calculated using a formula. The delay is affected by the following factors:Network communication statusTransacti", + "product_code":"dds", + "title":"What Is the Time Delay for Primary/Secondary Synchronization in a Replica Set?", + "uri":"dds_faq_0006.html", + "doc_type":"usermanual", + "p_code":"96", + "code":"98" + }, + { + "desc":"DDS does not delete or perform any operations on any user data. If this problem occurs, check whether a misoperation has been performed. Restore the data using backup fil", + "product_code":"dds", + "title":"Why Is Data Missing from My Database?", + "uri":"dds_faq_0007.html", + "doc_type":"usermanual", + "p_code":"96", + "code":"99" + }, + { + "desc":"If your cloud account is deleted, both your automated and manual backups are deleted.", + "product_code":"dds", + "title":"Will My Backups Be Deleted If I Delete My Cloud Account?", + "uri":"dds_faq_0008.html", + "doc_type":"usermanual", + "p_code":"96", + "code":"100" + }, + { + "desc":"Yes. Adding shards does not affect the existing shards. Services are still available.", + "product_code":"dds", + "title":"Are My DDS DB Instances Available When Scaling?", + "uri":"dds_faq_0009.html", + "doc_type":"usermanual", + "p_code":"96", + "code":"101" + }, + { + "desc":"Yes. DDS can perform write operations only on the primary node in a replica set. You can configure DDS to perform read operations on the secondary node to split read and ", + "product_code":"dds", + "title":"Does DDS Support Read/Write Splitting?", + "uri":"dds_faq_0010.html", + "doc_type":"usermanual", + "p_code":"96", + "code":"102" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Connection and Access FAQs", + "uri":"dds_faq_0104.html", + "doc_type":"usermanual", + "p_code":"90", + "code":"103" + }, + { + "desc":"You can access the DDS DB instance using the following methods:Create a DDS DB instance and an ECS in the same VPC to enable the ECS to access the instance.If the DDS DB ", + "product_code":"dds", + "title":"Can an External Server Access the DDS DB Instance?", + "uri":"dds_faq_0011.html", + "doc_type":"usermanual", + "p_code":"103", + "code":"104" + }, + { + "desc":"The number of DDS database connections indicates the number of applications that can be simultaneously connected to the database. Generally, it indicates the number of co", + "product_code":"dds", + "title":"What Is the Number of DDS Database Connections?", + "uri":"dds_faq_0012.html", + "doc_type":"usermanual", + "p_code":"103", + "code":"105" + }, + { + "desc":"Perform the following steps to identify the problem: The following uses the cluster instance as an example.If they are in the same VPC, go to 2.If they are in different V", + "product_code":"dds", + "title":"What Should I Do If the ECS Cannot Connect to a DDS DB Instance?", + "uri":"dds_faq_0013.html", + "doc_type":"usermanual", + "p_code":"103", + "code":"106" + }, + { + "desc":"Identify a DDS DB instance connection failure caused by a client problem from the following aspects.ECS Security PolicyIn Windows, check whether the DDS port is enabled i", + "product_code":"dds", + "title":"What Should I Do If a Database Client Problem Causes a Connection Failure?", + "uri":"dds_faq_0014.html", + "doc_type":"usermanual", + "p_code":"103", + "code":"107" + }, + { + "desc":"Check whether the following problems occur on the DDS database. Check the following one at a time.The maximum number of connections is reached.Solution: Use the Cloud Eye", + "product_code":"dds", + "title":"What Should I Do If a DDS Server Problem Causes a Connection Failure?", + "uri":"dds_faq_0015.html", + "doc_type":"usermanual", + "p_code":"103", + "code":"108" + }, + { + "desc":"Ensure that the ECS where in which your applications are located is in the same VPC and subnet as the DDS DB instance. If the ECS and the DDS DB instance are in different", + "product_code":"dds", + "title":"How Can My Applications Access a DDS DB Instance in a VPC?", + "uri":"dds_faq_0016.html", + "doc_type":"usermanual", + "p_code":"103", + "code":"109" + }, + { + "desc":"It is recommended that your applications support automatic reconnections to the database. After a database reboot, your applications will automatically reconnect to the d", + "product_code":"dds", + "title":"Do Applications Need to Support Automatic Reconnecting to the DDS Database?", + "uri":"dds_faq_0017.html", + "doc_type":"usermanual", + "p_code":"103", + "code":"110" + }, + { + "desc":"For details on how to create and log in to an ECS, see \"Creating and Logging In to a Windows ECS\" or \"Creating and Logging In to a Linux ECS\" in the Elastic Cloud Server ", + "product_code":"dds", + "title":"How Can I Create and Log In to an ECS?", + "uri":"dds_faq_0034.html", + "doc_type":"usermanual", + "p_code":"103", + "code":"111" + }, + { + "desc":"MongoDB official website provides client installation packages for different OSs. Download the official binary installation package at https://www.mongodb.com/download-ce", + "product_code":"dds", + "title":"How Can I Install a MongoDB Client?", + "uri":"dds_faq_0018.html", + "doc_type":"usermanual", + "p_code":"103", + "code":"112" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Parameter and Metric FAQs", + "uri":"dds_faq_0108.html", + "doc_type":"usermanual", + "p_code":"90", + "code":"113" + }, + { + "desc":"You need to focus on the CPU, memory, and storage space usage.You can configure DDS to report alarms as needed. If an alarm is reported, you can take proper measures to c", + "product_code":"dds", + "title":"What DB Instance Monitoring Metrics Do I Need to Pay Attention To?", + "uri":"dds_faq_0019.html", + "doc_type":"usermanual", + "p_code":"113", + "code":"114" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Network and Security FAQs", + "uri":"dds_faq_0110.html", + "doc_type":"usermanual", + "p_code":"90", + "code":"115" + }, + { + "desc":"DDS allows you to set the VPC which DDS DB instances belong to, ensuring that the DDS DB instances are isolated from other services. In addition, the IAM service is provi", + "product_code":"dds", + "title":"What Security Protection Policies Does DDS Have?", + "uri":"dds_faq_0021.html", + "doc_type":"usermanual", + "p_code":"115", + "code":"116" + }, + { + "desc":"A VPC allows you to create virtual network environment in a private and isolated network to control the private IP address range, subnets, route tables, and network gatew", + "product_code":"dds", + "title":"Do I Need to Use DDS in a VPC?", + "uri":"dds_faq_0022.html", + "doc_type":"usermanual", + "p_code":"115", + "code":"117" + }, + { + "desc":"The VPC security group helps ensure the security of DDS in a VPC. In addition, ACL can be used to allow or reject I/O network traffic for each subnet. Use the internal se", + "product_code":"dds", + "title":"How Do I Ensure the Security of DDS in a VPC?", + "uri":"dds_faq_0023.html", + "doc_type":"usermanual", + "p_code":"115", + "code":"118" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Storage FAQs", + "uri":"dds_faq_0109.html", + "doc_type":"usermanual", + "p_code":"90", + "code":"119" + }, + { + "desc":"You can store DDS backup data on the ECS using mongoexport. However, you are advised not to store database backups on ECSs. You are advised to use the DDS backup function", + "product_code":"dds", + "title":"How Do I Back Up DDS to ECS?", + "uri":"dds_faq_0025.html", + "doc_type":"usermanual", + "p_code":"119", + "code":"120" + }, + { + "desc":"The automated backup retention period is 7 days by default. You can set a backup retention period from 1 to 732 days. There is no limit on the manual backup retention per", + "product_code":"dds", + "title":"How Long Does DDS Store Backup Data For?", + "uri":"dds_faq_0026.html", + "doc_type":"usermanual", + "p_code":"119", + "code":"121" + }, + { + "desc":"The EVS is used for data storage of DDS DB instances. For details on the EVS, see Elastic Volume Service User Guide.The DDS DB instance backup data is stored in the OBS a", + "product_code":"dds", + "title":"What Is the DDS DB Instance Storage Configuration?", + "uri":"dds_faq_0028.html", + "doc_type":"usermanual", + "p_code":"119", + "code":"122" + }, + { + "desc":"If the storage space required by your applications exceeds the allowed maximum space allocated to you, you can do either of the following:Scale up storage space.Add shard", + "product_code":"dds", + "title":"What Should I Do If My Data Exceeds the Database Storage Space of a DDS DB Instance?", + "uri":"dds_faq_0029.html", + "doc_type":"usermanual", + "p_code":"119", + "code":"123" + }, + { + "desc":"Both your common data (excluding backup data) and data required for ensuring DB instance proper running occupy the storage space on your purchased DDS DB instances. To en", + "product_code":"dds", + "title":"Which Items Occupy the Storage Space on My Purchased DDS DB Instances?", + "uri":"dds_faq_0030.html", + "doc_type":"usermanual", + "p_code":"119", + "code":"124" + }, + { + "desc":"The storage space you applied for will contain the system overhead required for inode, reserved block, and database operation.", + "product_code":"dds", + "title":"What Overhead Does the Storage Space Have After I Applied for a DDS DB Instance?", + "uri":"dds_faq_0031.html", + "doc_type":"usermanual", + "p_code":"119", + "code":"125" + }, + { + "desc":"Logs and files listed in the following table occupy storage space.", + "product_code":"dds", + "title":"Which Types of Logs and Files Occupy DDS DB Instance Storage Space?", + "uri":"dds_faq_0032.html", + "doc_type":"usermanual", + "p_code":"119", + "code":"126" + }, + { + "desc":"The following tables list the commands supported and restricted by DDS.", + "product_code":"dds", + "title":"Which Commands are Supported or Restricted by DDS?", + "uri":"dds_faq_0033.html", + "doc_type":"usermanual", + "p_code":"90", + "code":"127" + }, + { + "desc":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.", + "product_code":"dds", + "title":"Change History", + "uri":"dds_change_history.html", + "doc_type":"usermanual", + "p_code":"", + "code":"128" + }, + { + "desc":"For details about the glossaries in this document, see Glossary.", + "product_code":"dds", + "title":"Glossary", + "uri":"dds_glossary.html", + "doc_type":"usermanual", + "p_code":"", + "code":"129" + } +] \ No newline at end of file diff --git a/docs/dds/umn/PARAMETERS.txt b/docs/dds/umn/PARAMETERS.txt new file mode 100644 index 000000000..6da8d5f07 --- /dev/null +++ b/docs/dds/umn/PARAMETERS.txt @@ -0,0 +1,3 @@ +version="" +language="en-us" +type="" \ No newline at end of file diff --git a/docs/dds/umn/dds_01_0001.html b/docs/dds/umn/dds_01_0001.html new file mode 100644 index 000000000..9325c02fc --- /dev/null +++ b/docs/dds/umn/dds_01_0001.html @@ -0,0 +1,19 @@ + + +

Basic Concepts

+
+
+ + +
+
Parent topic: Introduction
+
+
+ diff --git a/docs/dds/umn/dds_01_0002.html b/docs/dds/umn/dds_01_0002.html new file mode 100644 index 000000000..f4ded3593 --- /dev/null +++ b/docs/dds/umn/dds_01_0002.html @@ -0,0 +1,21 @@ + + +

Cluster

+

DDS cluster instances consist of mongos, config, and shard nodes. The following diagram shows the node relationships.

+
Figure 1 Diagram of node relationships
+

mongos

A mongos is a router for reading and writing data, providing a unified interface for accessing DB instances.

+ +
+

config

A config stores configuration settings for DB instances and consists of one replica set.

+ +
+

shard

In the cluster instance, shards are used to store user data.

+ +
+
+
+
+
Parent topic: Basic Concepts
+
+
+ diff --git a/docs/dds/umn/dds_01_0005.html b/docs/dds/umn/dds_01_0005.html new file mode 100644 index 000000000..e81c777df --- /dev/null +++ b/docs/dds/umn/dds_01_0005.html @@ -0,0 +1,11 @@ + + +

Database Parameter Group

+

A database parameter group is a collection of configuration parameters and values and can be applied to multiple DB instances.

+
+
+
+
Parent topic: Basic Concepts
+
+
+ diff --git a/docs/dds/umn/dds_01_0006.html b/docs/dds/umn/dds_01_0006.html new file mode 100644 index 000000000..ebdb5d7a8 --- /dev/null +++ b/docs/dds/umn/dds_01_0006.html @@ -0,0 +1,21 @@ + + +

Product Advantages

+
+
+ + +
+
Parent topic: Introduction
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+
+ diff --git a/docs/dds/umn/dds_01_0007.html b/docs/dds/umn/dds_01_0007.html new file mode 100644 index 000000000..d7066aa2d --- /dev/null +++ b/docs/dds/umn/dds_01_0007.html @@ -0,0 +1,20 @@ + + +

High Reliability

+

Failover

The three-node replica set architecture of DDS ensures high service availability.

+

In a replica set, both the primary and secondary nodes provide services. If a primary node goes down or becomes faulty, a secondary node is automatically assigned to the primary role and continues normal operation. If a secondary node is unavailable, a hidden node will take the role of the secondary to ensure high availability.

+
+

Multi-Copy Redundancy

config and shard use the three-node replica set HA architecture. Using this architecture, nodes are deployed on different servers and racks.

+
+

Data Backups

Data can be backed up automatically or manually. Automated backups execute full backups on DB instances. A manual backup is a full backup of DB instances initiated by users. These backups can be used to restore DB instances with a few clicks.

+

Backups are stored in Object Storage Service (OBS), improving the data disaster recovery capabilities while reducing the needed storage space. When a DB instance is created, the automated backup policy is enabled by default. After the DB instance is created, an automated full backup is triggered instantly. The backup retention period is 7 days by default. You can set the backup retention period and modify the backup policy. In addition, you can initiate backup at any time according to your service requirements. Manual backups are saved until you manually delete them.

+
+

Data Restore

You can use backup data to restore instance data. Restored data is the same as the original data.

+
+
+
+
+
Parent topic: Product Advantages
+
+
+ diff --git a/docs/dds/umn/dds_01_0008.html b/docs/dds/umn/dds_01_0008.html new file mode 100644 index 000000000..eda243bf3 --- /dev/null +++ b/docs/dds/umn/dds_01_0008.html @@ -0,0 +1,22 @@ + + +

High Security

+

Network Isolation

DDS uses Virtual Private Clouds (VPCs) and network security groups to isolate your DB instances. VPCs allow you to configure IP address ranges that are allowed access to DDS. You can run your DB instances in a VPC to improve security. To further enhance database security, you can configure subnets and security groups to control access to DB instances.

+
+

Access Control

VPC security groups can have rules that govern both inbound and outbound traffic of DB instances.

+
+

Transmission Encryption

DDS uses Secure Sockets Layer (SSL) to encrypt transmitted data. You can download a certificate authority (CA) from the DDS console and upload it for authentication when connecting to a database.

+
+

Security Protection

DDS provides a multi-layer network protection against various malicious attacks. The protection system consists of VPCs, subnets, security groups, DDoS protection, and SSL.

+ +
+

Performance Monitoring

DDS monitors instance performance, reducing O&M activities by as much as 60%. It provides real-time monitoring information about CPU utilization, disk usage, IOPS, and number of active connections, allowing you to check instance status at any time.

+

In asynchronous disk scenarios, DDS provides excellent plugin performance and process memory databases. It also provides the secondary index function to meet dynamic query requirements.

+
+
+
+
+
Parent topic: Product Advantages
+
+
+ diff --git a/docs/dds/umn/dds_01_0009.html b/docs/dds/umn/dds_01_0009.html new file mode 100644 index 000000000..3a581c89f --- /dev/null +++ b/docs/dds/umn/dds_01_0009.html @@ -0,0 +1,14 @@ + + +

Scalability

+

Elastic Scaling

DDS supports the cluster mode. You can select multiple mongos and shards. When your service changes or the current instance configuration cannot meet the application performance requirements, DDS allows you to scale up storage space of shards, or add new shards. During the expansion, your services will not be interrupted.

+
+

On-demand Scaling

DDS supports the three-node replica set mode. You can scale up the storage space based on your service requirements and only pay for the resources you consumed. If the storage space of the current DB instance cannot meet your application requirements, you can expand the storage capacity. During the expansion, your services will not be interrupted.

+
+
+
+
+
Parent topic: Product Advantages
+
+
+ diff --git a/docs/dds/umn/dds_01_0010.html b/docs/dds/umn/dds_01_0010.html new file mode 100644 index 000000000..e0b97a3a5 --- /dev/null +++ b/docs/dds/umn/dds_01_0010.html @@ -0,0 +1,16 @@ + + +

Ease of Use

+

Instant Availability

You can create a DB instance on the management console and access DDS through an Elastic Cloud Server (ECS) to reduce the application response time. If you need to access a DB instance from your local devices, you can bind an elastic IP address (EIP) to the instance.

+
+

High Compatibility

DDS is a document-oriented NoSQL database. It is fully compatible with MongoDB.

+
+

Easy O&M

You can easily perform restart, backup, and data recovery operations on instances using a graphical user interface (GUI)

+
+
+
+
+
Parent topic: Product Advantages
+
+
+ diff --git a/docs/dds/umn/dds_01_0011.html b/docs/dds/umn/dds_01_0011.html new file mode 100644 index 000000000..5338c80a5 --- /dev/null +++ b/docs/dds/umn/dds_01_0011.html @@ -0,0 +1,14 @@ + + +

Cluster Architecture

+

Each DDS cluster is an independent document database. A sharded cluster consists of mongos, config, and shard.

+

Data read and write requests are forwarded by mongos. A mongos reads configuration settings from configs and allocates the read and write requests to shards, making it easy to cope with high concurrency scenarios. In addition, each config and shard is a replica set that provides high availability. The following figure shows the DDS cluster architecture.

+
Figure 1 Cluster architecture
+ +
+
+
+
Parent topic: System Architecture
+
+
+ diff --git a/docs/dds/umn/dds_01_0012.html b/docs/dds/umn/dds_01_0012.html new file mode 100644 index 000000000..1a7521f9a --- /dev/null +++ b/docs/dds/umn/dds_01_0012.html @@ -0,0 +1,18 @@ + + +

Replica Set Architecture

+

A replica set consists of a set of mongod processes and provides a collection of data nodes to ensure data redundancy and reliability.

+

For details about the mongod process, visit https://docs.mongodb.com/v3.2/tutorial/manage-mongodb-processes/index.html.

+
+

A replica set consists of three nodes: primary, secondary, and hidden. The three-node architecture is automatically set up, and the three nodes synchronize data with each other automatically to ensure data reliability.

+ +

You can directly perform operations on the primary and secondary nodes. If a primary node goes down or becomes faulty, a secondary node is automatically assigned to the primary role and continues normal operation. If a secondary node is unavailable, a hidden node will take the role of the secondary to ensure high availability. The following figure shows the replica set architecture.

+
Figure 1 Replica set architecture
+ +
+
+
+
Parent topic: System Architecture
+
+
+ diff --git a/docs/dds/umn/dds_01_0013.html b/docs/dds/umn/dds_01_0013.html new file mode 100644 index 000000000..8a7d7be1e --- /dev/null +++ b/docs/dds/umn/dds_01_0013.html @@ -0,0 +1,19 @@ + + +

DDS DB Instance

+
+
+ + +
+
Parent topic: Introduction
+
+
+ diff --git a/docs/dds/umn/dds_01_0014.html b/docs/dds/umn/dds_01_0014.html new file mode 100644 index 000000000..78446f833 --- /dev/null +++ b/docs/dds/umn/dds_01_0014.html @@ -0,0 +1,11 @@ + + +

Database Engine and Version

+

Currently, DDS is compatible with MongoDB 3.2 and 3.4 Community Edition and supports the WiredTiger storage engine, so you need to use a driver compatible with MongoDB 3.0 or later to access DDS.

+
+
+
+
Parent topic: DDS DB Instance
+
+
+ diff --git a/docs/dds/umn/dds_01_0015.html b/docs/dds/umn/dds_01_0015.html new file mode 100644 index 000000000..99bdb9f92 --- /dev/null +++ b/docs/dds/umn/dds_01_0015.html @@ -0,0 +1,15 @@ + + +

Typical Application Scenarios

+
+
+
+
+
Parent topic: Introduction
+
+
+ diff --git a/docs/dds/umn/dds_01_0016.html b/docs/dds/umn/dds_01_0016.html new file mode 100644 index 000000000..c9a77cd14 --- /dev/null +++ b/docs/dds/umn/dds_01_0016.html @@ -0,0 +1,31 @@ + + +

Related Services

+

ECS

ECS provides DDS with elastic computing resources. DDS needs to apply for resources from ECS to build a running environment for DB instances.

+

For more information, see the Elastic Cloud Server User Guide.

+
+

EVS

Elastic Volume Service (EVS) provides DDS with elastic storage resources. DDS needs to apply for resources from EVS to build a running environment for DB instances.

+

For more information, see the Elastic Volume Service User Guide.

+
+

VPC

Virtual Private Cloud (VPC) provides DDS with elastic network resources and implements network isolation and access control for your DB instances.

+

For more information, see the Virtual Private Cloud User Guide.

+
+

OBS

OBS stores your DDS DB instance backup files.

+

For more information, see the Object Storage Service User Guide.

+
+

Cloud Eye

Cloud Eye serves as a monitoring platform, monitoring DDS resources for you. Cloud Eye supports multiple alarm rules to ensure timely pre-warning and normal service running.

+

For more information, see the Cloud Eye User Guide.

+
+

IAM

Identity and Access Management (IAM) provides the permission management function for DDS.

+

For more information, see the Identity and Access Management User Guide.

+
+

CTS

Cloud Trace Service (CTS) records operations related to DDS, facilitating your further queries, audits, and retrievals.

+

For more information, see the Cloud Trace Service User Guide.

+
+
+
+
+
Parent topic: Introduction
+
+
+ diff --git a/docs/dds/umn/dds_01_0017.html b/docs/dds/umn/dds_01_0017.html new file mode 100644 index 000000000..800a4d737 --- /dev/null +++ b/docs/dds/umn/dds_01_0017.html @@ -0,0 +1,13 @@ + + +

User Permissions

+

DDS provides two types of user permissions by default: user management and resource management.

+ +

For details, see Permissions.

+
+
+
+
Parent topic: Introduction
+
+
+ diff --git a/docs/dds/umn/dds_01_0021.html b/docs/dds/umn/dds_01_0021.html new file mode 100644 index 000000000..fe37b603d --- /dev/null +++ b/docs/dds/umn/dds_01_0021.html @@ -0,0 +1,18 @@ + + +

System Architecture

+

+
+
+ + +
+
Parent topic: Introduction
+
+
+ diff --git a/docs/dds/umn/dds_01_0024.html b/docs/dds/umn/dds_01_0024.html new file mode 100644 index 000000000..622e42ee9 --- /dev/null +++ b/docs/dds/umn/dds_01_0024.html @@ -0,0 +1,83 @@ + + +

DB Instance Specifications

+

DB instance specifications are listed in the following table.

+

DB instance specifications vary depending on the actual environment.

+
+

Cluster

For details about the cluster instance specifications, see Table 1 and Table 2.

+ +
+ + + + + + + + + +
Table 1 config specifications

Number of vCPUs

+

Memory (GB)

+

Max. Number of Connections

+

2

+

4

+

1000

+
+
+ +
+ + + + + + + + + + + + + + + + + + + + + + + + + +
Table 2 shard and mongos specifications

Number of vCPUs

+

Memory (GB)

+

Max. Number of Connections

+

1

+

4

+

400

+

2

+

8

+

400

+

4

+

16

+

1000

+

8

+

32

+

4000

+

16

+

64

+

8000

+
+
+
+

Replica Set

The supported replica set specifications are the same as those of shard and mongos nodes. For details, see Table 2.

+
+
+
+
+
Parent topic: DDS DB Instance
+
+
+ diff --git a/docs/dds/umn/dds_01_0026.html b/docs/dds/umn/dds_01_0026.html new file mode 100644 index 000000000..e9e92ed52 --- /dev/null +++ b/docs/dds/umn/dds_01_0026.html @@ -0,0 +1,122 @@ + + +

Database Status

+

DB Instance Status

+
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Table 1 Status and description

Status

+

Description

+

Available

+

A DB instance is running properly.

+

Abnormal

+

A DB instance is faulty.

+

Creating

+

A DB instance is being created.

+

Creation failed

+

A DB instance fails to be created.

+

Restarting

+

A DB instance is being restarted because of a customer request or a modification that requires restarting it for the modification to take effect.

+

Switchover in progress

+

The primary and secondary nodes of a replica set instance are being switched.

+

Adding node

+

shards or mongos are being added to a DDS cluster instance.

+

Deleting node

+

The node that failed to be added is being deleted.

+

Scaling up

+

The storage space of instance nodes is being expanded.

+

Changing instance class

+

The CPU or memory of a DB instance is being changed.

+

Backing up

+

A backup file is being created.

+

Checking restoration

+

The backup of the current DB instance is being restored to a new DB instance.

+

Switching SSL

+

The SSL channel is being enabled or disabled.

+

Changing private IP address

+

The private IP address of a node is being changed.

+

Changing port

+

The DB instance port is being changed.

+

Changing a security group

+

The security group is being changed.

+
+
+
+

Parameter Group Status

+
+ + + + + + + + + + +
Table 2 Status and description

Status

+

Description

+

In-Sync

+

A database parameter change has taken effect.

+

Pending restart

+

A database parameter is waiting for the DB instance to be restarted before its modification takes effect.

+
+
+
+
+
+
+
Parent topic: DDS DB Instance
+
+
+ diff --git a/docs/dds/umn/dds_01_0027.html b/docs/dds/umn/dds_01_0027.html new file mode 100644 index 000000000..f68e61c16 --- /dev/null +++ b/docs/dds/umn/dds_01_0027.html @@ -0,0 +1,14 @@ + + +

Regions and AZs

+

A region is a geographic area in which resources used by DDS are located.

+

Each region comprises one or more AZs and is completely isolated from other regions. AZs within the same region can communicate with one another through an internal network, while those in different regions cannot communicate with one another through an internal network.

+

Public cloud data centers are deployed worldwide. DDS applies to different regions. Provisioning DDS to specific regions can better meet user requirements. For example, applications can be designed to better meet specific user requirements or comply with local laws and other demands.

+

Each region contains many AZs where power and networks are physically isolated. AZs in the same region can communicate with each other over an intranet. Each AZ provides cost-effective and low-latency network connections that are unaffected by faults in other AZs. As a result, provisioning DDS in separate AZs protects your applications against local faults that occur in a single location. DDS supports the deployment of a replica set instance across three AZs. It means that the primary, secondary, and hidden nodes are deployed in three AZs for disaster recovery.

+
+
+
+
Parent topic: Basic Concepts
+
+
+ diff --git a/docs/dds/umn/dds_02_0002.html b/docs/dds/umn/dds_02_0002.html new file mode 100644 index 000000000..b5d92f74c --- /dev/null +++ b/docs/dds/umn/dds_02_0002.html @@ -0,0 +1,65 @@ + + +

Restrictions

+

To improve the stability and security of DB instances, there are some restrictions on the use of DDS. For details, see Table 1.

+ +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Table 1 Function restrictions

Operation

+

Restrictions

+

Connecting to a DB instance through a client

+
  • To access a DDS DB instance which is not publicly accessible from an ECS, the instance must be in the same VPC subnet as the ECS.
  • By default, DDS cannot be accessed through an ECS in a different security group. You need to add an inbound rule to the DDS security group.
  • The default DDS port number is 8635. You can change it if you want to access DDS through another port.
+

Deployment

+

ECSs in which DB instances are deployed are not visible to you. Your applications can access the database only through an IP address and port.

+

Obtaining permissions of user rwuser

+

Only the rwuser user permissions are provided on the instance creation page.

+

For details about the related commands, see Which Commands are Supported or Restricted by DDS?

+

Setting database parameters

+

+

+

Most database parameters in the parameter groups you created can be modified. For details, see section Editing a Parameter Group.

+

+

Migrating data

+

You can use command line tools, including mongoexport and mongoimport, to migrate data. For details, see section Migrating Data.

+

Storage engine

+

The WiredTiger storage engine is supported.

+

Restarting a DB instance or a node

+

A DDS DB instance must be restarted on the DDS console.

+

Viewing DDS backup files

+

You can download and view the backup files on the DDS console. For details, see section Downloading Backup Files.

+
+
+
+
+
+
Parent topic: Getting Started with Clusters
+
+
+ diff --git a/docs/dds/umn/dds_02_0003.html b/docs/dds/umn/dds_02_0003.html new file mode 100644 index 000000000..b699e18d9 --- /dev/null +++ b/docs/dds/umn/dds_02_0003.html @@ -0,0 +1,17 @@ + + +

Service Process

+

This section describes how to create a cluster instance, set a security group, and connect to a cluster instance.

+

Intended Audience

+
+

Process

The following describes the steps from creating a DB instance to using it.

+
Figure 1 Accessing DB instances from a public network
+
Figure 2 Accessing DB instances from a private network
+
+
+
+
+
Parent topic: Getting Started with Clusters
+
+
+ diff --git a/docs/dds/umn/dds_02_0005.html b/docs/dds/umn/dds_02_0005.html new file mode 100644 index 000000000..49941c9b7 --- /dev/null +++ b/docs/dds/umn/dds_02_0005.html @@ -0,0 +1,56 @@ + + +

Setting a Security Group

+

Scenarios

This section guides you on how to add a security group rule to control access from and to DDS DB instances in a security group.

+
+

Background Information

You can access a DDS DB instance in either of the following ways:

+ +
+

Precautions

The default security group rule allows all outgoing data packets. ECSs and DDS DB instances can access each other in the same security group. After a security group is created, you can add security group rules to control the access from and to the DDS DB instances in the security group.

+

By default, a tenant can create a maximum of 500 security group rules. An excessive number of security group rules increases the network latency of the first packet. It is recommended that you add a maximum of 50 rules for each security group.

+

To access the DDS DB instances in a security group from external resources, create an inbound rule for the security group.

+
+

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner and select a region and project.
  3. Click Service List. Under Network, click Virtual Private Cloud.
  4. In the navigation pane on the left, choose Access Control > Security Groups.
  5. On the Security Group page, click the security group name.
  6. On the Inbound Rules tab, click Add Rule. In the displayed Add Inbound Rule dialog box, set required parameters to add inbound rules. On the Outbound Rules tab, click Add Rule. In the displayed Add Outbound Rule dialog box, set required parameters to add outbound rules.
  7. Add a security group rule as prompted.

    +

    + + + + + + + + + + + + + + + + + +
    Table 1 Field description

    Parameter

    +

    Description

    +

    Value Example

    +

    Protocol

    +

    Specifies the network protocol. Allows all traffic or supports user-defined protocols, TCP, UDP, ICMP, and SSH.

    +

    TCP

    +

    Port

    +

    Specifies the port allowing the access to ECSs or external devices.

    +

    8635

    +

    Source/Destination

    +

    Specifies the supported IP address and security group.

    +
    • IP address: indicates that the security group rule takes effect in a specified IP address range.
      • xxx.xxx.xxx.xxx/32 (IPv4)
      • xxx.xxx.xxx.0/24 (subnet)
      • 0.0.0.0/0 (any IP address)
      +
    • Security group: indicates that this rule allows all IP addresses of ECSs to access DDS DB instances in the same specified security group.
    +
    • 192.168.10.0/24
    • default
    +
    +
    +

  8. Click OK.
+
+
+
+
+
Parent topic: Getting Started with Clusters
+
+
+ diff --git a/docs/dds/umn/dds_02_0006.html b/docs/dds/umn/dds_02_0006.html new file mode 100644 index 000000000..618d02e16 --- /dev/null +++ b/docs/dds/umn/dds_02_0006.html @@ -0,0 +1,25 @@ + + +

Binding and Unbinding an EIP

+

Scenarios

You can access DDS through a private IP address or an EIP. The application scenario of the connection address is as follows:

+ + +
+

Precautions

+
+

Binding an EIP

  1. On the Instance Management page, click the target cluster instance.
  2. In the navigation pane on the left, choose Connections.
  3. In the Basic Information area, locate the target mongos node and click Bind EIP in the Operation column.
  4. In the displayed dialog box, all EIPs in the unbound status are listed. Select the required EIP and click OK. If no available EIPs are displayed, click View EIP and create an EIP on the VPC console.
  5. In the EIP column on the mongos tab, view the EIP that is successfully bound.

    To unbind an EIP from the DB instance, see Unbinding an EIP.

    +

+
+

Unbinding an EIP

  1. On the Instance Management page, click the target cluster instance.
  2. In the navigation pane on the left, choose Connections.
  3. In the Basic Information area, locate the target mongos node and click Unbind EIP in the Operation column.
  4. In the displayed dialog box, click OK to unbind the EIP.

    To bind an EIP to the DB instance again, see Binding an EIP.

    +

+
+
+
+
+
Parent topic: Connecting to a Cluster Instance
+
+
+ diff --git a/docs/dds/umn/dds_02_0007.html b/docs/dds/umn/dds_02_0007.html new file mode 100644 index 000000000..c83c6a233 --- /dev/null +++ b/docs/dds/umn/dds_02_0007.html @@ -0,0 +1,21 @@ + + +

Enabling or Disabling SSL

+

Scenarios

DDS allows you to use SSL to encrypt connections to a DB instance to protect your data.

+ +

Enabling or disabling SSL will cause DB instance restart. Exercise caution when you perform this operation.

+
+
+

Enabling SSL

  1. On the Instance Management page, click the target DB instance.
  2. In the DB Information area on the Basic Information page, click to enable SSL in the SSL field.

    Alternatively, in the navigation pane on the left, choose Connections. In the Basic Information area, click next to the SSL field.

    +

  3. In the displayed dialog box, click Yes.
  4. In the Basic Information area, view the modification result.
+
+

Disabling SSL

  1. On the Instance Management page, click the target DB instance.
  2. In the DB Information area on the Basic Information page, click to enable SSL in the SSL field.

    Alternatively, in the navigation pane on the left, choose Connections. In the Basic Information area, click next to the SSL field.

    +

  3. In the displayed dialog box, click Yes.
  4. In the Basic Information area, view the modification result.
+
+
+
+
+
Parent topic: Connecting to a Cluster Instance
+
+
+ diff --git a/docs/dds/umn/dds_02_0008.html b/docs/dds/umn/dds_02_0008.html new file mode 100644 index 000000000..deef9e26e --- /dev/null +++ b/docs/dds/umn/dds_02_0008.html @@ -0,0 +1,242 @@ + + +

Creating a Cluster Instance

+

Scenarios

This section describes how to create a DDS cluster instance of Community Edition on the DDS management console. DDS allows you to tailor your computing resources and storage space to your business needs.

+

You can use your account to create a maximum of 10 cluster instances. To create more cluster instances, click in the upper right corner of the management console. On the Service Quota page, click Increase Quota to apply for quotas.

+
+

Procedure

  1. Log in to the DDS console.
  2. On the Instance Management page, click Create DB Instance.
  3. On the displayed page, configure parameters about DB instance specifications. Then, click Create Now.

    +

    + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    Table 1 Basic information

    Parameter

    +

    Description

    +

    Region

    +

    A region where the tenant is located. It can be changed in the upper left corner. For details, see section Regions and AZs.

    +
    NOTE:

    DB instances in different regions cannot communicate with each other through a private network, and you cannot change the region of a DB instance once it is created. Therefore, exercise caution when selecting a region.

    +
    +

    DB Instance Name

    +

    The DB instance name can be 4 to 64 characters long. It must start with a letter and can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).

    +

    After the DB instance is created, you can change the DB instance name. For details, see section Modifying the DB Instance Name.

    +

    +

    +

    Database Type

    +

    Community Edition

    +

    DB Instance Type

    +

    Select Cluster.

    +

    A cluster instance includes three types of nodes: mongos, shard, and config. shard and config use the three-node replica set architecture to ensure high availability.

    +

    Compatible MongoDB Version

    +
    • 3.4
    • 3.2
    +

    Storage Engine

    +

    WiredTiger

    +

    AZ

    +

    A physical region where resources use independent power supply and networks. AZs are physically isolated but interconnected through the internal network. For details, see section Regions and AZs.

    +

    Disk Encryption

    +
    • Disable: Disable the encryption function.
    • Enable: Enable the encryption function. This feature improves data security but slightly affects read/write performance.

      Key Name: Select or create a private key, which is the tenant key.

      +
      NOTE:
      • After a DB instance is created, the disk encryption status and the key cannot be changed. Backup data stored on OBS is not encrypted.
      • The key cannot be disabled or deleted when being used. Otherwise, the database becomes unavailable.
      • For details about how to create a key, see the "Creating a CMK" section in the Key Management Service User Guide.
      +
      +
    +
    +
    + +
    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    Table 2 Specifications

    Item

    +

    Description

    +

    mongos class

    +

    For details about the mongos CPU and memory, see section DB Instance Specifications. After a DB instance is created, you can change its CPU and memory. For details, see section Changing the CPU or Memory of a Cluster DB Instance.

    +

    mongos quantity

    +

    The value ranges from 2 to 16. After a DB instance is created, you can add nodes. For details, see section Adding Cluster Instance Nodes.

    +

    mongos parameter group

    +

    Parameters in a mongos parameter group can be applied to mongos nodes. After a DB instance is created, you can change the parameter group of a node. For a parameter group created by users, you can modify the parameters in the parameter group to bring out the best performance.

    +

    +

    +

    For details, see Parameter Group.

    +

    +

    shard class

    +

    For details about the shard CPU and memory, see section DB Instance Specifications. After a DB instance is created, you can change its CPU and memory. For details, see section Changing the CPU or Memory of a Cluster DB Instance.

    +

    shard storage type

    +

    Ultra-high I/O: uses the SSD disk type.

    +

    shard storage space

    +

    The value ranges from 10 GB to 1,000 GB and must be a multiple of 10. After a DB instance is created, you can scale up its storage space. For details, see section Scaling Up Storage Space.

    +

    shard quantity

    +

    shard stores user data but cannot be accessed directly by you.

    +

    The value ranges from 2 to 16. After a DB instance is created, you can add nodes. For details, see section Adding Cluster Instance Nodes.

    +

    shard parameter group

    +

    Parameters in a shard parameter group can be applied to shard nodes. After a DB instance is created, you can change the parameter group of a node. For a parameter group created by users, you can modify the parameters in the parameter group to bring out the best performance.

    +

    +

    +

    For details, see Parameter Group.

    +

    +

    config class

    +

    config stores DB instance configurations but cannot be accessed directly by you. For details, see DB Instance Specifications.

    +

    config storage type

    +

    Ultra-high I/O: uses the SSD disk type.

    +

    config storage space

    +

    The storage space is 20 GB and cannot be scaled up.

    +

    config parameter group

    +

    Parameters in a config parameter group can be applied to config nodes. After a DB instance is created, you can change the parameter group of a node. For a parameter group created by users, you can modify the parameters in the parameter group to bring out the best performance.

    +

    +

    +

    For details, see Parameter Group.

    +

    +
    +
    + +
    + + + + + + + + + + + + + + + + +
    Table 3 Network

    Parameter

    +

    Description

    +

    VPC

    +

    The VPC to which a DB instance belongs isolates networks for different services. It allows user to manage and configure internal networks and change network configuration, simplifying network management. You need to create or select the required VPC. For details on how to create a VPC, see section "Creating a VPC" in the Virtual Private Cloud User Guide.

    +

    Subnet

    +

    A subnet provides dedicated network resources that are logically isolated from other networks, improving network security. After a DB instance is created, you can click the DB instance name and change the private IP address assigned by the subnet to the mongos node on the Basic Information page.

    +
    NOTE:

    Changing the private IP address of a node will invalidate the previous private IP address. If an EIP is bound to the node, do not unbind the EIP during the change of the private IP address. After the change, the new private IP address is bound to the EIP.

    +
    +

    Security Group

    +

    A security group controls access between DDS and other services for security.

    +
    NOTE:

    Ensure that the security group rule you set allows clients to access DB instances. For example, select the TCP protocol with inbound direction, input the default port number 8635, and enter a subnet IP address or select a security group that the DB instance belongs to.

    +
    +

    SSL

    +

    Secure Sockets Layer (SSL) certificates set up encrypted connections between clients and servers, preventing data from being tampered with or stolen during transmission.

    +

    You can enable SSL to improve data security. After a DB instance is created, you can connect to it in SSL mode. For details, see Connecting to a DB Instance Through a Client.

    +
    +
    + +
    + + + + + + + + + + + + + +
    Table 4 Database configuration

    Parameter

    +

    Description

    +

    Administrator

    +

    The default account is rwuser.

    +

    Administrator Password

    +

    The password is a string of 8 to 32 characters. It must be a combination of uppercase letters, lowercase letters, digits, and special characters. You can also use the following special characters: ~!@#%^*-_=+?

    +

    The system cannot save you password. Keep the password secure.

    +

    Confirm Password

    +

    The value of this parameter must be the same as the Administrator Password.

    +
    +
    + +
    + + + + + + + +
    Table 5 Tag

    Parameter

    +

    Description

    +

    Tags

    +

    Tags a DDS DB instance. This configuration is optional. Adding tags to DDS DB instances helps you better identify and manage them. Each DB instance can have up to 20 tags.

    +

    A tag is composed of a key-value pair.

    +
    • Key: Mandatory if the DB instance is going to be tagged
      • For each DB instance, each tag key is unique.
      • A tag key consists of a maximum of 36 characters.
      • The key can only consist of digits, letters, underscores (_), hyphens (-), and at sign (@).
      +
    • Value: Optional if the DB instance is going to be tagged
      • The value consists of a maximum of 43 characters.
      • The value can only consist of digits, letters, underscores (_), hyphens (-), and at sign (@).
      +
    +

    After a DB instance is created, you can view its tag details on the Tags tab. In addition, you can add, modify, and delete tags for existing DB instances. For details, see Tag.

    +
    +
    +

    DB instance performance is determined by the configurations you set during its creation, including the node class and storage space.

    +
    +

  4. On the displayed page, confirm the DB instance information.

    • If you need to modify the specifications, click Previous to modify parameters.
    • If you do not need to modify the specifications, click Submit to start the instance creation.
    +

  5. After a DDS DB instance is created, you can view and manage it on the Instance Management page.

    • When a DB instance is being created, the status displayed in the Status column is Creating. This process takes about 15 minutes. After the creation is complete, the status changes to Available.
    • DDS enables the automated backup policy by default. After a DB instance is created, you can modify or disable the automated backup policy. An automated full backup is immediately triggered after the creation of a DB instance.
    • You can change the database port after the DB instance is created. DDS uses port 8635 by default, which is different from the default port numbers used by databases. To ensure database accessibility, you need to add the required security group rule.
    +

+
+
+
+
+
Parent topic: Getting Started with Clusters
+
+
+ diff --git a/docs/dds/umn/dds_02_0009.html b/docs/dds/umn/dds_02_0009.html new file mode 100644 index 000000000..074a8fd91 --- /dev/null +++ b/docs/dds/umn/dds_02_0009.html @@ -0,0 +1,20 @@ + + +

Connecting to a Cluster Instance

+

+
+
+ + +
+
Parent topic: Getting Started with Clusters
+
+
+ diff --git a/docs/dds/umn/dds_02_0010.html b/docs/dds/umn/dds_02_0010.html new file mode 100644 index 000000000..bdef47460 --- /dev/null +++ b/docs/dds/umn/dds_02_0010.html @@ -0,0 +1,17 @@ + + +

Service Process

+

This section describes how to create a replica set instance, set a security group, and connect to a replica set instance.

+

Intended Audience

+
+

Service Process

The following describes the steps from creating a DB instance to using it.

+
Figure 1 Accessing DB instances from a public network
+
Figure 2 Accessing DB instances from a private network
+
+
+
+
+
Parent topic: Getting Started with Replica Sets
+
+
+ diff --git a/docs/dds/umn/dds_02_0011.html b/docs/dds/umn/dds_02_0011.html new file mode 100644 index 000000000..9a04781d3 --- /dev/null +++ b/docs/dds/umn/dds_02_0011.html @@ -0,0 +1,65 @@ + + +

Restrictions

+

To improve the stability and security of DB instances, there are some restrictions on the use of DDS. For details, see Table 1.

+ +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Table 1 Function restrictions

Operation

+

Restrictions

+

Connecting to a DB instance through a client

+
  • To access a DDS DB instance which is not publicly accessible from an ECS, the instance must be in the same VPC subnet as the ECS.
  • By default, DDS cannot be accessed through an ECS in a different security group. You need to add an inbound rule to the DDS security group.
  • The default DDS port number is 8635. You can change it if you want to access DDS through another port.
+

Deployment

+

ECSs in which DB instances are deployed are not visible to you. Your applications can access the database only through an IP address and port.

+

Obtaining permissions of user rwuser

+

Only the rwuser user permissions are provided on the instance creation page.

+

For details about the related commands, see Which Commands are Supported or Restricted by DDS?

+

Setting database parameters

+

+

+

Most database parameters in the parameter groups you created can be modified. For details, see section Editing a Parameter Group.

+

+

Migrating data

+

You can use command line tools, including mongoexport and mongoimport, to migrate data. For details, see section Migrating Data.

+

Storage engine

+

Currently, DDS supports the WiredTiger storage engine only.

+

Restarting a DB instance or a node

+

A DDS DB instance must be restarted on the DDS console.

+

Viewing DDS backup files

+

You can download and view the backup files on the DDS console. For details, see section Downloading Backup Files.

+
+
+
+
+
+
Parent topic: Getting Started with Replica Sets
+
+
+ diff --git a/docs/dds/umn/dds_02_0012.html b/docs/dds/umn/dds_02_0012.html new file mode 100644 index 000000000..7921d73a8 --- /dev/null +++ b/docs/dds/umn/dds_02_0012.html @@ -0,0 +1,194 @@ + + +

Creating a Replica Set Instance

+

Scenarios

This section describes how to create a DDS replica set instance on the DDS management console. DDS allows you to tailor your computing resources and storage space to your business needs.

+

You can use your account to create a maximum of 50 replica set instances in total. To create more replica set instances, click in the upper right corner of the management console. On the Service Quota page, click Increase Quota to apply for quotas.

+
+

Procedure

  1. Log in to the DDS console.
  2. On the Instance Management page, click Create DB Instance.
  3. On the displayed page, configure parameters about DB instance specifications. Then, click Create Now.

    +

    + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    Table 1 Basic information

    Parameter

    +

    Description

    +

    Region

    +

    A region where the tenant is located. It can be changed in the upper left corner. For details, see section Regions and AZs.

    +
    NOTE:

    DB instances in different regions cannot communicate with each other through a private network, and you cannot change the region of a DB instance once it is created. Therefore, exercise caution when selecting a region.

    +
    +

    DB Instance Name

    +

    The DB instance name can be 4 to 64 characters long. It must start with a letter and can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).

    +

    After the DB instance is created, you can change the DB instance name. For details, see section Modifying the DB Instance Name.

    +

    +

    +

    Database Type

    +

    Community Edition

    +

    DB Instance Type

    +

    Select Replica set.

    +

    A replica set consists of the primary node, secondary node, and hidden node. If a primary node goes down or becomes faulty, a secondary node is automatically assigned to the primary role and continues normal operation. If a secondary node is unavailable, a hidden node will take the role of the secondary to ensure high availability.

    +

    Compatible MongoDB Version

    +
    • 3.4
    • 3.2
    +

    Storage Engine

    +

    WiredTiger

    +

    AZ

    +

    A physical region where resources use independent power supply and networks. AZs are physically isolated but interconnected through the internal network. For details, see section Regions and AZs.

    +

    A replica set instance can be deployed in one AZ or three AZs only. If the replica set instance is deployed across three AZs, the primary, secondary, and hidden nodes are deployed in three AZs respectively for high availability.

    +

    Disk Encryption

    +
    • Disable: Disable the encryption function.
    • Enable: Enable the encryption function. This feature improves data security but slightly affects read/write performance.

      Key Name: Select or create a private key, which is the tenant key.

      +
      NOTE:
      • After a DB instance is created, the disk encryption status and the key cannot be changed. Backup data stored on OBS is not encrypted.
      • The key cannot be disabled or deleted when being used. Otherwise, the database becomes unavailable.
      • For details about how to create a key, see the "Creating a CMK" section in the Key Management Service User Guide.
      +
      +
    +
    +
    + +
    + + + + + + + + + + + + + +
    Table 2 Specifications

    Parameter

    +

    Description

    +

    Node Class

    +

    For details about the DB instance specifications, see section DB Instance Specifications. After a DB instance is created, you can change its CPU and memory. For details, see section Changing the CPU or Memory of a Replica Set DB Instance.

    +

    Storage Type

    +

    Ultra-high I/O: uses the SSD disk type.

    +

    Storage Space

    +

    Ranges from 10 GB to 2,000 GB. The value must be a multiple of 10.

    +
    +
    + +
    + + + + + + + + + + + + + + + + +
    Table 3 Network

    Parameter

    +

    Description

    +

    VPC

    +

    The VPC to which a DB instance belongs isolates networks for different services. It allows user to manage and configure internal networks and change network configuration, simplifying network management. You need to create or select the required VPC. For details on how to create a VPC, see section "Creating a VPC" in the Virtual Private Cloud User Guide.

    +

    Subnet

    +

    A subnet provides dedicated network resources that are logically isolated from other networks, improving network security. After a DB instance is created, you can click the DB instance name and change the private IP address assigned by the subnet to the node on the Basic Information page.

    +
    NOTE:

    Changing the private IP address of a node will invalidate the previous private IP address. If an EIP is bound to the node, do not unbind the EIP during the change of the private IP address. After the change, the new private IP address is bound to the EIP.

    +
    +

    Security Group

    +

    A security group controls access between DDS and other services for security.

    +
    NOTE:

    Ensure that the security group rule you set allows clients to access DB instances. For example, select the TCP protocol with inbound direction, input the default port number 8635, and enter a subnet IP address or select a security group that the DB instance belongs to.

    +
    +

    SSL

    +

    Secure Sockets Layer (SSL) certificates set up encrypted connections between clients and servers, preventing data from being tampered with or stolen during transmission.

    +

    You can enable SSL to improve data security. After a DB instance is created, you can connect to it in SSL mode. For details, see Connecting to a DB Instance Through a Client.

    +
    +
    + +
    + + + + + + + + + + + + + + + + +
    Table 4 Database configuration

    Parameter

    +

    Description

    +

    Administrator

    +

    The default account is rwuser.

    +

    Administrator Password

    +

    The password is a string of 8 to 32 characters. It must be a combination of uppercase letters, lowercase letters, digits, and special characters. You can also use the following special characters: ~!@#%^*-_=+?

    +

    The system cannot save you password. Keep the password secure.

    +

    Confirm Password

    +

    The value of this parameter must be the same as the Administrator Password.

    +

    Replica Set Parameter Group

    +

    The parameters in the replica set parameter group are applied to replica set instances. After a DB instance is created, you can change the parameter group of the instance. For a parameter group created by users, you can modify the parameters in the parameter group to bring out the best performance.

    +

    +

    +

    For details, see Parameter Group.

    +

    +
    +
    + +
    + + + + + + + +
    Table 5 Tag

    Parameter

    +

    Description

    +

    Tags

    +

    Tags a DDS DB instance. This configuration is optional. Adding tags to DDS DB instances helps you better identify and manage them. Each DB instance can have up to 20 tags.

    +

    A tag is composed of a key-value pair.

    +
    • Key: Mandatory if the DB instance is going to be tagged
      • For each DB instance, each tag key is unique.
      • A tag key consists of a maximum of 36 characters.
      • The key can only consist of digits, letters, underscores (_), hyphens (-), and at sign (@).
      +
    • Value: Optional if the DB instance is going to be tagged
      • The value consists of a maximum of 43 characters.
      • The value can only consist of digits, letters, underscores (_), hyphens (-), and at sign (@).
      +
    +

    After a DB instance is created, you can view its tag details on the Tags tab. In addition, you can add, modify, and delete tags for existing DB instances. For details, see Tag.

    +
    +
    +

    The performance of your DB instance is determined by how you configure it during the creation. The hardware configuration items that can be selected include the class and storage space of the replica set.

    +
    +

  4. On the displayed page, confirm the DB instance information.

    • If you need to modify the specifications, click Previous to modify parameters.
    • If you do not need to modify the specifications, click Submit to start the instance creation.
    +

  5. After a DDS DB instance is created, you can view and manage it on the Instance Management page.

    • When a DB instance is being created, the status displayed in the Status column is Creating. This process takes about 15 minutes. After the creation is complete, the status changes to Available.
    • DDS enables the automated backup policy by default. After a DB instance is created, you can modify or disable the automated backup policy. An automated full backup is immediately triggered after the creation of a DB instance.
    • You can change the database port after the DB instance is created. DDS uses port 8635 by default, which is different from the default port numbers used by databases. To ensure database accessibility, you need to add the required security group rule.
    +

+
+
+
+
+
Parent topic: Getting Started with Replica Sets
+
+
+ diff --git a/docs/dds/umn/dds_02_0013.html b/docs/dds/umn/dds_02_0013.html new file mode 100644 index 000000000..827dc6748 --- /dev/null +++ b/docs/dds/umn/dds_02_0013.html @@ -0,0 +1,56 @@ + + +

Setting a Security Group

+

Scenarios

This section guides you on how to add a security group rule to control access from and to DDS DB instances in a security group. This document describes how to set security groups.

+
+

Background Information

You can access a DDS DB instance in either of the following ways:

+ +
+

Precautions

The default security group rule allows all outgoing data packets. ECSs and DDS DB instances can access each other in the same security group. After a security group is created, you can add security group rules to control the access from and to the DDS DB instances in the security group.

+

By default, a tenant can create a maximum of 500 security group rules. An excessive number of security group rules increases the network latency of the first packet. It is recommended that you add a maximum of 50 rules for each security group.

+

To access the DDS DB instances in a security group from external resources, create an inbound rule for the security group.

+
+

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner and select a region and project.
  3. Click Service List. Under Network, click Virtual Private Cloud.
  4. In the navigation pane on the left, choose Access Control > Security Groups.
  5. On the Security Group page, click the security group name.
  6. On the Inbound Rules tab, click Add Rule. In the displayed Add Inbound Rule dialog box, set required parameters to add inbound rules. On the Outbound Rules tab, click Add Rule. In the displayed Add Outbound Rule dialog box, set required parameters to add outbound rules.
  7. Add a security group rule as prompted.

    +

    + + + + + + + + + + + + + + + + + +
    Table 1 Parameter description

    Parameter

    +

    Description

    +

    Value Example

    +

    Protocol

    +

    Specifies the network protocol. Allows all traffic or supports user-defined protocols, TCP, UDP, ICMP, and SSH.

    +

    TCP

    +

    Port

    +

    Specifies the port allowing the access to ECSs or external devices.

    +

    8635

    +

    Source/Destination

    +

    Specifies the supported IP address and security group.

    +
    • IP address: indicates that the security group rule takes effect in a specified IP address range.
      • xxx.xxx.xxx.xxx/32 (IPv4)
      • xxx.xxx.xxx.0/24 (subnet)
      • 0.0.0.0/0 (any IP address)
      +
    • Security group: indicates that this rule allows all IP addresses of ECSs to access DDS DB instances in the same specified security group.
    +
    • 192.168.10.0/24
    • default
    +
    +
    +

  8. Click OK.
+
+
+
+
+
Parent topic: Getting Started with Replica Sets
+
+
+ diff --git a/docs/dds/umn/dds_02_0014.html b/docs/dds/umn/dds_02_0014.html new file mode 100644 index 000000000..ff89bfbc6 --- /dev/null +++ b/docs/dds/umn/dds_02_0014.html @@ -0,0 +1,20 @@ + + +

Connecting to a Replica Set Instance

+

+
+
+ + +
+
Parent topic: Getting Started with Replica Sets
+
+
+ diff --git a/docs/dds/umn/dds_02_0015.html b/docs/dds/umn/dds_02_0015.html new file mode 100644 index 000000000..8201ed085 --- /dev/null +++ b/docs/dds/umn/dds_02_0015.html @@ -0,0 +1,25 @@ + + +

Binding and Unbinding an EIP

+

Scenarios

You can access DDS through a private IP address or an EIP. The application scenario of the connection address is as follows:

+ + +
+

Precautions

+
+

Binding an EIP

  1. On the Instance Management page, click the target replica set instance.
  2. In the navigation pane on the left, choose Connections.
  3. In the Basic Information area, locate the target node and click Bind EIP in the Operation column.
  4. In the displayed dialog box, all EIPs in the unbound status are listed. Select the required EIP and click OK. If no available EIPs are displayed, click View EIP and create an EIP on the VPC console.
  5. In the EIP column, check that the EIP is successfully bound.

    To unbind an EIP from the DB instance, see Unbinding an EIP.

    +

+
+

Unbinding an EIP

  1. On the Instance Management page, click the replica set instance that has been bound with an EIP.
  2. In the navigation pane on the left, choose Connections.
  3. In the Basic Information area, locate the target node and click Unbind EIP in the Operation column.
  4. In the displayed dialog box, click OK to unbind the EIP.

    To bind an EIP to the DB instance again, see Binding an EIP.

    +

+
+
+
+
+
Parent topic: Connecting to a Replica Set Instance
+
+
+ diff --git a/docs/dds/umn/dds_02_0016.html b/docs/dds/umn/dds_02_0016.html new file mode 100644 index 000000000..a9165d367 --- /dev/null +++ b/docs/dds/umn/dds_02_0016.html @@ -0,0 +1,19 @@ + + +

Enabling or Disabling SSL

+

Scenarios

DDS allows you to use SSL to encrypt connections to a DB instance to protect your data.

+ +

Enabling or disabling SSL will cause DB instance restart. Exercise caution when you perform this operation.

+
+
+

Enabling SSL

  1. On the Instance Management page, click the target replica set instance.
  2. In the navigation pane on the left, choose Connections.
  3. In the Basic Information area, click next to the SSL field.
  4. In the displayed dialog box, click Yes.
  5. In the Basic Information area, view the modification result.
+
+

Disabling SSL

  1. On the Instance Management page, click the target replica set instance.
  2. In the navigation pane on the left, choose Connections.
  3. In the Basic Information area, click next to the SSL field.
  4. In the displayed dialog box, click Yes.
  5. In the Basic Information area, view the modification result.
+
+
+
+
+
Parent topic: Connecting to a Replica Set Instance
+
+
+ diff --git a/docs/dds/umn/dds_02_0043.html b/docs/dds/umn/dds_02_0043.html new file mode 100644 index 000000000..9d94b4a32 --- /dev/null +++ b/docs/dds/umn/dds_02_0043.html @@ -0,0 +1,10 @@ + + +

Logging In to the DDS Console

+

Prerequisites

You have registered an account.

+

For the first time you use DDS, register an account at the official website. After the registration, your account has permissions to access the DDS service, as well as all other cloud services.

+
+

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner and select a region and a project.
  3. Click Service List. Under Database, click Document Database Service to go to the DDS console.
+
+
+ diff --git a/docs/dds/umn/dds_02_cluster.html b/docs/dds/umn/dds_02_cluster.html new file mode 100644 index 000000000..5c4fa8f39 --- /dev/null +++ b/docs/dds/umn/dds_02_cluster.html @@ -0,0 +1,19 @@ + + +

Getting Started with Clusters

+
+
+ +
+ diff --git a/docs/dds/umn/dds_02_replica_set.html b/docs/dds/umn/dds_02_replica_set.html new file mode 100644 index 000000000..634d27038 --- /dev/null +++ b/docs/dds/umn/dds_02_replica_set.html @@ -0,0 +1,19 @@ + + +

Getting Started with Replica Sets

+
+
+ +
+ diff --git a/docs/dds/umn/dds_03_0001.html b/docs/dds/umn/dds_03_0001.html new file mode 100644 index 000000000..44116b629 --- /dev/null +++ b/docs/dds/umn/dds_03_0001.html @@ -0,0 +1,29 @@ + + +

Managing DDS DB Instances

+
+
+ +
+ diff --git a/docs/dds/umn/dds_03_0002.html b/docs/dds/umn/dds_03_0002.html new file mode 100644 index 000000000..5482be597 --- /dev/null +++ b/docs/dds/umn/dds_03_0002.html @@ -0,0 +1,24 @@ + + +

DB Instance Operations

+

+
+
+ + +
+
Parent topic: Managing DDS DB Instances
+
+
+ diff --git a/docs/dds/umn/dds_03_0003.html b/docs/dds/umn/dds_03_0003.html new file mode 100644 index 000000000..6af37cc68 --- /dev/null +++ b/docs/dds/umn/dds_03_0003.html @@ -0,0 +1,22 @@ + + +

Restarting a DB Instance or a Node

+

Scenarios

You may need to restart a DB instance for maintenance purposes. After modifying some parameters, you must restart the DB instance for the modifications to take effect on the management console.

+

You can restart a DB instance only when its status is Available.

+
  • After you restart a DB instance, services will be interrupted. Exercise caution when performing this operation.
  • If you restart a DB instance, all nodes in the instance will be restarted.
+
+
+

Restarting a DB Instance

  1. Log in to the DDS console.
  2. On the Instance Management page, locate the target DB instance and choose More > Restart in the Operation column.

    Alternatively, click the target DB instance. On the displayed Basic Information page, click Restart in the upper right corner of the page.

    +

  3. In the displayed dialog box, click Yes.
  4. View the restart status.

    1. On the Instance Management page, the instance status is Restarting.
    2. On the Basic Information page, all nodes of the cluster instance cannot be restarted.
    +

+
+

Restarting a Node (Cluster)

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target cluster instance.
  3. In the Node Information area on the Basic Information page, click mongos, shard, or config, locate the target node, and click Restart.
  4. In the displayed dialog box, click Yes.
  5. View the node status.

    When one node status is Restarting, other nodes of the instance cannot be restarted.

    +

+
+
+
+
+
Parent topic: DB Instance Operations
+
+
+ diff --git a/docs/dds/umn/dds_03_0004.html b/docs/dds/umn/dds_03_0004.html new file mode 100644 index 000000000..cee5cbbb3 --- /dev/null +++ b/docs/dds/umn/dds_03_0004.html @@ -0,0 +1,17 @@ + + +

Deleting a DB instance

+

Scenarios

This section guides you on how to delete a DB instance no longer used to release resources. You can delete the following types of DB instances:

+ +
+
  • After you delete an instance, all nodes in the instance are also deleted.
  • After you delete the DB instance, all data in it and all automated backups are automatically deleted and cannot be restored. Exercise caution when performing this operation.
  • By default, all manual backups are retained in DDS. You can use a backup to restore a deleted instance.
+
+

Procedure

  1. Log in to the DDS console.
  2. On the Instance Management page, locate the target DB instance and choose More > Delete in the Operation column.
  3. In the displayed dialog box, click Yes.
+
+
+
+
+
Parent topic: DB Instance Operations
+
+
+ diff --git a/docs/dds/umn/dds_03_0006.html b/docs/dds/umn/dds_03_0006.html new file mode 100644 index 000000000..45c9d891f --- /dev/null +++ b/docs/dds/umn/dds_03_0006.html @@ -0,0 +1,27 @@ + + +

Backup and Restore

+
+
+ + +
+
Parent topic: Managing DDS DB Instances
+
+
+ diff --git a/docs/dds/umn/dds_03_0007.html b/docs/dds/umn/dds_03_0007.html new file mode 100644 index 000000000..b9134de7e --- /dev/null +++ b/docs/dds/umn/dds_03_0007.html @@ -0,0 +1,26 @@ + + +

Creating a Manual Backup

+

Scenarios

This section guides you on how to create a manual backup. Creating a backup for a DB instance helps ensure data can be restored if needed, ensuring data reliability.

+

When you delete a DB instance, its automated backups are also deleted but its manual backups are retained.

+
+
+

Method 1

  1. Log in to the DDS console.
  2. On the Instance Management page, locate an available DB instance and click Create Backup or choose More > Create Backup.
  3. In the displayed dialog box, specify Backup Name and Description and click OK.

    • The manual backup name can be 4 to 64 characters long. It must start with a letter and can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).
    • The description contains a maximum of 256 characters and cannot contain the carriage return character and the following special characters: >!<"&'=
    +

  4. Check the result:

    • During the creation of a manual backup, you can query the backup status on the Backup Management or the Backups & Restorations page. The backup status is Backing up. The time it takes to complete the backup depends on the size of the job.
    • If the manual backup is successfully created, the backup status is Complete. The manual backup type is Manual and the backup method is Physical.
    +

+
+

Method 2

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Backup Management.
  3. On the Backup Management page, click Create Backup.
  4. In the displayed dialog box, specify DB Instance Type, DB Instance Name, Backup Name and Description and click OK.

    • Only DB instances in Available status can be manually backed up.
    • The manual backup name can be 4 to 64 characters long. It must start with a letter and can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).
    • The description contains a maximum of 256 characters and cannot contain the carriage return character and the following special characters: >!<"&'=
    +

  5. Check the result:

    • During the creation of a manual backup, you can query the backup status on the Backup Management or the Backups & Restorations page. The backup status is Backing up. The time it takes to complete the backup depends on the size of the job.
    • If the manual backup is successfully created, the backup status is Complete. The manual backup type is Manual and the backup method is Physical.
    +

+
+

Method 3

  1. Log in to the DDS console.
  2. On the Instance Management page, click an available DB instance.
  3. In the navigation pane on the left, click Backups & Restorations.
  4. On the Backups & Restorations page, click Create Backup.
  5. In the displayed dialog box, specify Backup Name and Description and click OK.

    • The manual backup name can be 4 to 64 characters long. It must start with a letter and can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).
    • The description contains a maximum of 256 characters and cannot contain the carriage return character and the following special characters: >!<"&'=
    +

  6. Check the result:

    • During the creation of a manual backup, you can query the backup status on the Backup Management or the Backups & Restorations page. The backup status is Backing up. The time it takes to complete the backup depends on the size of the job.
    • If the manual backup is successfully created, the backup status is Complete. The manual backup type is Manual and the backup method is Physical.
    +

+
+
+
+
+
Parent topic: Backup and Restore
+
+
+ diff --git a/docs/dds/umn/dds_03_0008.html b/docs/dds/umn/dds_03_0008.html new file mode 100644 index 000000000..91ccca691 --- /dev/null +++ b/docs/dds/umn/dds_03_0008.html @@ -0,0 +1,20 @@ + + +

Deleting a Manual Backup

+

Scenarios

This section describes how to delete manual backups to release the storage space.

+

The deletion operation is irreversible. Exercise caution when performing this operation.

+
+
+

Method 1

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the navigation pane on the left, click Backups & Restorations.
  4. On the Backups & Restorations page, locate the manual backup to be deleted and click Delete.

    Backups being used to recover instances cannot be deleted.

    +

  5. In the displayed dialog box, click Yes.
+
+

Method 2

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Backup Management.
  3. On the Backup Management page, click the Clusters or Replica Sets tab, locate the manual backup you want to delete and click Delete in the Operation column.

    Backups being used to recover instances cannot be deleted.

    +

  4. In the displayed dialog box, click Yes.
+
+
+
+
+
Parent topic: Backup and Restore
+
+
+ diff --git a/docs/dds/umn/dds_03_0009.html b/docs/dds/umn/dds_03_0009.html new file mode 100644 index 000000000..6a04ce73c --- /dev/null +++ b/docs/dds/umn/dds_03_0009.html @@ -0,0 +1,21 @@ + + +

Deleting an Automated Backup

+

Scenarios

This section guides you on how to delete an automated backup. If the automated backup policy is disabled, DDS allows you to delete stored automated backups to release storage space.

+

If the automated backup policy is enabled, DDS will delete automated backups as they expire. You cannot delete them manually.

+

The deletion operation is irreversible. Exercise caution when performing this operation.

+
+
+

Method 1

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the navigation pane on the left, click Backups & Restorations.
  4. On the Backups & Restorations tab, locate the automated backup to be deleted and click Delete.

    Backups being used to recover instances cannot be deleted.

    +

  5. In the displayed dialog box, click Yes.
+
+

Method 2

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Backup Management.
  3. On the Backup Management page, click the Clusters or Replica Sets tab, locate the automated backup you want to delete and click Delete in the Operation column.

    Backups being used to recover instances cannot be deleted.

    +

  4. In the displayed dialog box, click Yes.
+
+
+
+
+
Parent topic: Backup and Restore
+
+
+ diff --git a/docs/dds/umn/dds_03_0010.html b/docs/dds/umn/dds_03_0010.html new file mode 100644 index 000000000..145581da9 --- /dev/null +++ b/docs/dds/umn/dds_03_0010.html @@ -0,0 +1,29 @@ + + +

Parameter Group

+
+
+ + +
+
Parent topic: Managing DDS DB Instances
+
+
+ diff --git a/docs/dds/umn/dds_03_0012.html b/docs/dds/umn/dds_03_0012.html new file mode 100644 index 000000000..189315aa6 --- /dev/null +++ b/docs/dds/umn/dds_03_0012.html @@ -0,0 +1,15 @@ + + +

Comparing Two Parameter Groups

+

Scenarios

This section guides you on how to compare two parameter groups of the same node type and DB engine version to know their current settings.

+
+

Procedure

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Parameter Group Management.
  3. On the Parameter Group Management page, select the Clusters or Replica Sets tab and locate the parameter group you created and click Compare in the Operation column.
  4. In the displayed Compare Parameter Group dialog box, select a parameter group for Group2 and click OK.

    If the settings of the two parameter groups are different, the parameter names and values of group 1 and group 2 parameter groups are displayed. If the settings are the same, no data is displayed.

    +

+
+
+
+
+
Parent topic: Parameter Group
+
+
+ diff --git a/docs/dds/umn/dds_03_0013.html b/docs/dds/umn/dds_03_0013.html new file mode 100644 index 000000000..93b4407f7 --- /dev/null +++ b/docs/dds/umn/dds_03_0013.html @@ -0,0 +1,15 @@ + + +

Replicating a Parameter Group

+

Scenarios

This section guides you on how to replicate a parameter group you created and assign it a name different from that of original group.

+
+

Procedure

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Parameter Group Management.
  3. On the Parameter Group Management page, select the Clusters or Replica Sets tab, locate the parameter group you want to replicate and click Replicate in the Operation column.
  4. Enter the new parameter group name and description and click OK.

    • Parameter Group Name: specifies the parameter group name, which is a string of 1 to 64 characters composed of only letters (case-sensitive), digits, hyphens (-), underscores (_), and periods (.).
    • Description: contains a maximum of 256 characters and cannot contain the carriage return character and the following special characters: >!<"&'=
    +

  5. After the creation is complete, you can manage the parameter group in the parameter group list on the corresponding tab.
+
+
+
+
+
Parent topic: Parameter Group
+
+
+ diff --git a/docs/dds/umn/dds_03_0014.html b/docs/dds/umn/dds_03_0014.html new file mode 100644 index 000000000..f08569bb4 --- /dev/null +++ b/docs/dds/umn/dds_03_0014.html @@ -0,0 +1,19 @@ + + +

Changing Associated Parameter Group

+

Scenarios

After a DB instance is created, you can change the parameter group associated with the DB instance to achieve optimal performance. The parameter group associated with the DB instance cannot be changed in any of the following cases:

+ +
+

Cluster

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target cluster instance.
  3. In the Node Information area on the Basic Information page, click mongos, shard, or config, locate the target node, and click Change Parameter Group.
  4. On the displayed dialog box, select the parameter group to be modified and click OK.

    • If the static parameter value is changed in the new parameter group, restart the instance for the modification to take effect.
    • If no parameter groups are available for New Parameter Group, create a parameter group. For details, see section Creating a Parameter Group.
    +

+
+

Replica Set

  1. Log in to the DDS console.
  2. On the Instance Management page, locate the target replica set instance, and choose More > Change Parameter Group in the Operation column.
  3. On the displayed dialog box, select the parameter group to be modified and click OK.

    • If the static parameter value is changed in the new parameter group, restart the instance for the modification to take effect.
    • If no parameter groups are available for New Parameter Group, create a parameter group. For details, see section Creating a Parameter Group.
    +

+
+
+
+
+
Parent topic: Parameter Group
+
+
+ diff --git a/docs/dds/umn/dds_03_0015.html b/docs/dds/umn/dds_03_0015.html new file mode 100644 index 000000000..a5837cf31 --- /dev/null +++ b/docs/dds/umn/dds_03_0015.html @@ -0,0 +1,16 @@ + + +

Resetting a Parameter Group

+

Scenarios

This section guides you on how to reset all parameters in a parameter group you create to the default settings as needed.

+

Resetting the parameter group will restore the default values. Exercise caution when performing this operation.

+
+
+

Procedure

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Parameter Group Management.
  3. On the Parameter Group Management page, select the Clusters or Replica Sets tab, locate the parameter group you want to reset and choose More > Reset in the Operation column.
  4. In the displayed dialog box, click Yes.
+
+
+
+
+
Parent topic: Parameter Group
+
+
+ diff --git a/docs/dds/umn/dds_03_0016.html b/docs/dds/umn/dds_03_0016.html new file mode 100644 index 000000000..e26cfe288 --- /dev/null +++ b/docs/dds/umn/dds_03_0016.html @@ -0,0 +1,17 @@ + + +

Deleting a Parameter Group

+

Scenarios

This section guides you on how to delete a parameter group. The following parameter groups cannot be deleted.

+ +

Deleted parameter groups cannot be restored. Exercise caution when performing this operation.

+
+
+

Procedure

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Parameter Group Management.
  3. On the Parameter Group Management page, select the Clusters or Replica Sets tab, locate the parameter group you want to delete and choose More > Delete in the Operation column.
  4. In the displayed dialog box, click Yes.
+
+
+
+
+
Parent topic: Parameter Group
+
+
+ diff --git a/docs/dds/umn/dds_03_0017.html b/docs/dds/umn/dds_03_0017.html new file mode 100644 index 000000000..925db26c4 --- /dev/null +++ b/docs/dds/umn/dds_03_0017.html @@ -0,0 +1,20 @@ + + +

Storage

+

+
+
+ + +
+
Parent topic: Managing DDS DB Instances
+
+
+ diff --git a/docs/dds/umn/dds_03_0018.html b/docs/dds/umn/dds_03_0018.html new file mode 100644 index 000000000..9f7ca3a1c --- /dev/null +++ b/docs/dds/umn/dds_03_0018.html @@ -0,0 +1,18 @@ + + +

Reverting Cluster Instance Nodes

+

Scenarios

This section guides you on how to revert nodes that fail to be added.

+
+

Reverting Nodes in Batches

  1. Log in to the DDS console.
  2. On the Instance Management page, locate the cluster instance to which nodes fail to be added and choose More > Revert in the Operation column.
  3. In the displayed dialog box, click Yes.

    During reversal, the node status is Deleting node. This process takes about 1 to 3 minutes.

    +

+
+

Deleting a Single Node

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target cluster instance to which the node fails to be added.
  3. In the Node Information area on the Basic Information tab, click the mongos or shard tab, locate the mongos or shard that fail to be added, and choose More > Delete.
  4. In the displayed dialog box, click Yes.

    During deletion, the node status is Deleting node. This process takes about 1 to 3 minutes.

    +

+
+
+
+
+
Parent topic: Storage
+
+
+ diff --git a/docs/dds/umn/dds_03_0019.html b/docs/dds/umn/dds_03_0019.html new file mode 100644 index 000000000..707c32d9e --- /dev/null +++ b/docs/dds/umn/dds_03_0019.html @@ -0,0 +1,20 @@ + + +

Security

+

+
+
+ + +
+
Parent topic: Managing DDS DB Instances
+
+
+ diff --git a/docs/dds/umn/dds_03_0023.html b/docs/dds/umn/dds_03_0023.html new file mode 100644 index 000000000..4de44f229 --- /dev/null +++ b/docs/dds/umn/dds_03_0023.html @@ -0,0 +1,47 @@ + + +

Tag

+

Scenarios

Tag Management Service (TMS) enables you to use tags on the management console to manage resources. TMS works with other cloud services to manage tags. TMS manages tags globally and other cloud services manage their own tags.

+

Adding tags to DDS DB instances helps you better identify and manage them. A DB instance can be tagged during or after it is created.

+ + +
+ + + + + + + + + + + + + +
Table 1 Naming rules

Parameter

+

Requirement

+

Example

+

Tag key

+
  • Cannot be left blank.
  • For each DB instance, each tag key is unique.
  • Consists of a maximum of 36 characters.
  • The key can only consist of digits, letters, underscores (_), hyphens (-), and at sign (@).
+

Organization

+

Tag value

+
  • Can be empty.
  • Consists of a maximum of 43 characters.
  • The value can only consist of digits, letters, underscores (_), hyphens (-), and at sign (@).
+

dds_01

+
+
+
+

Adding a Tag

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the navigation pane on the left, click Tags.
  4. On the Tags page, click Add Tag. In the displayed dialog box, enter a tag key and value, and click OK.
  5. View and manage tags on the Tags page.
+
+

Editing a Tag

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the navigation pane on the left, click Tags.
  4. On the Tags page, locate the tag to be edited and click Edit in the Operation column. In the displayed dialog box, change the tag value and click OK.

    Only the tag value can be edited when editing a tag.

    +

  5. View and manage tags on the Tags page.
+
+

Deleting a Tag

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the navigation pane on the left, click Tags.
  4. On the Tags page, locate the tag to be deleted and click Delete in the Operation column. In the displayed dialog box, click Yes.
  5. After a tag has been deleted, it will not be displayed on the Tags page.
+
+
+
+
+
Parent topic: Managing DDS DB Instances
+
+
+ diff --git a/docs/dds/umn/dds_03_0024.html b/docs/dds/umn/dds_03_0024.html new file mode 100644 index 000000000..44a216e3b --- /dev/null +++ b/docs/dds/umn/dds_03_0024.html @@ -0,0 +1,17 @@ + + +

Monitoring

+
+
+ +
+ diff --git a/docs/dds/umn/dds_03_0025.html b/docs/dds/umn/dds_03_0025.html new file mode 100644 index 000000000..845ebdc84 --- /dev/null +++ b/docs/dds/umn/dds_03_0025.html @@ -0,0 +1,20 @@ + + +

Interconnected with Cloud Eye

+

+
+
+ + +
+
Parent topic: Monitoring
+
+
+ diff --git a/docs/dds/umn/dds_03_0026.html b/docs/dds/umn/dds_03_0026.html new file mode 100644 index 000000000..df6046b50 --- /dev/null +++ b/docs/dds/umn/dds_03_0026.html @@ -0,0 +1,605 @@ + + +

DDS Metrics

+

Cluster

+
+

Replica Set

+
+
+
+
+
Parent topic: Interconnected with Cloud Eye
+
+
+ diff --git a/docs/dds/umn/dds_03_0027.html b/docs/dds/umn/dds_03_0027.html new file mode 100644 index 000000000..51965073a --- /dev/null +++ b/docs/dds/umn/dds_03_0027.html @@ -0,0 +1,20 @@ + + +

Setting Alarm Rules

+

Scenarios

You can set DDS alarm rules to customize the monitored objects and notification policies. Then, you can learn DDS running status in a timely manner.

+

The DDS alarm rules include alarm rule name, instance, metric, threshold, monitoring interval and whether to send notification. This section describes how to set DDS alarm rules.

+
+

For more information about DDS alarm rules, see Cloud Eye User Guide.

+
+

Procedure

  1. Log in to the management console.
  2. Under Management & Deployment, click Cloud Eye.
  3. In the navigation pane on the left, choose Alarm Management > Alarm Rules.
  4. On the Alarm Rules page, click Create Alarm Rule to create an alarm rule, or modify an existing alarm rule.

    The following operations use the modification of an existing alarm rule as an example.

    +

    Locate the alarm rule to be modified and choose More > Modify.

    +

    Click OK.

    +

  5. After the alarm rule is set, the system automatically notifies you when an alarm is triggered.
+
+
+
+
+
Parent topic: Interconnected with Cloud Eye
+
+
+ diff --git a/docs/dds/umn/dds_03_0028.html b/docs/dds/umn/dds_03_0028.html new file mode 100644 index 000000000..3e120dba8 --- /dev/null +++ b/docs/dds/umn/dds_03_0028.html @@ -0,0 +1,18 @@ + + +

Interconnecting with CTS

+

+
+
+ + +
+
Parent topic: Monitoring
+
+
+ diff --git a/docs/dds/umn/dds_03_0029.html b/docs/dds/umn/dds_03_0029.html new file mode 100644 index 000000000..0ad41e520 --- /dev/null +++ b/docs/dds/umn/dds_03_0029.html @@ -0,0 +1,219 @@ + + +

Key Operations Recorded by CTS

+

With CTS, you can record operations associated with DDS for later query, audit, and backtrack operations.

+ +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Table 1 Key operations on DDS

Operation

+

Resource

+

Trace Name

+

Restoring data to a new DB instance

+

instance

+

ddsRestoreToNewInstance

+

Creating a DB instance

+

instance

+

ddsCreateInstance

+

Deleting a DB instance

+

instance

+

ddsDeleteInstance

+

Restarting a DB instance

+

instance

+

ddsRestartInstance

+

Scaling up a DB instance

+

instance

+

ddsGrowInstance

+

Scaling up storage space

+

instance

+

ddsExtendInstanceVolume

+

Resetting the database password

+

instance

+

ddsResetPassword

+

Renaming a DB instance

+

instance

+

ddsRenameInstance

+

Switching SSL

+

instance

+

ddsSwitchSsl

+

Modifying a DB instance port

+

instance

+

ddsModifyInstancePort

+

Creating a backup

+

backup

+

ddsCreateBackup

+

Deleting a backup

+

backup

+

ddsDeleteBackup

+

Setting a backup policy

+

backup

+

ddsSetBackupPolicy

+

Applying a parameter group

+

parameterGroup

+

ddsApplyConfigurations

+

Replicating a parameter group

+

parameterGroup

+

ddsCopyConfigurations

+

Resetting a parameter group

+

parameterGroup

+

ddsResetConfigurations

+

Creating a parameter group

+

parameterGroup

+

ddsCreateConfigurations

+

Deleting a parameter group

+

parameterGroup

+

ddsDeleteConfigurations

+

Updating a parameter group

+

parameterGroup

+

ddsUpdateConfigurations

+

Binding an EIP

+

instance

+

ddsBindIP

+

Unbinding an EIP

+

instance

+

ddsUnbindIP

+

Adding a tag

+

tag

+

ddsAddTag

+

Deleting a tag

+

tag

+

ddsDeleteTag

+

Editing a tag

+

tag

+

ddsModifyTag

+

Deleting an instance tag

+

tag

+

ddsDeleteInstanceTag

+

Adding an instance tag

+

tag

+

ddsAddInstanceTag

+

Rolling back upon scaling-up failure

+

instance

+

ddsDeleteExtendedDdsNode

+

Changing DB instance classes

+

instance

+

ddsResizeInstance

+
+
+
+
+
+
Parent topic: Interconnecting with CTS
+
+
+ diff --git a/docs/dds/umn/dds_03_0032.html b/docs/dds/umn/dds_03_0032.html new file mode 100644 index 000000000..b04e50a98 --- /dev/null +++ b/docs/dds/umn/dds_03_0032.html @@ -0,0 +1,20 @@ + + +

Querying Traces

+

Scenarios

After CTS is enabled, the tracker starts recording operations on cloud resources. Operation records for the last 7 days are stored on the CTS console.

+

This section describes how to query operation records for the last 7 days on the CTS console.

+
+

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner and select a region and a project.
  3. Click Service List. Under Management & Deployment, click Cloud Trace Service.
  4. Choose Trace List in the navigation pane on the left.
  5. Specify the filters used for querying traces. The following four filters are available:

    • Trace Source, Resource Type, Search By, and Operator

      Select the filter from the drop-down list.

      +

      When you select Trace name for Search By, you also need to select a specific trace name.

      +

      When you select Resource ID for Search By, you also need to select or enter a specific resource ID.

      +

      When you select Resource name for Search By, you also need to select or enter a specific resource name.

      +
    • Operator: Select a specific operator (a user rather than tenant).
    • Trace Status: Available options include All trace statuses, normal, warning, and incident. You can only select one of them.
    • Start time and end time: You can specify the time period for query traces.
    +

  6. Click on the left of the record to be queried to extend its details.
  7. Locate a trace and click View Trace in the Operation column.
+
+
+
+
+
Parent topic: Interconnecting with CTS
+
+
+ diff --git a/docs/dds/umn/dds_03_0040.html b/docs/dds/umn/dds_03_0040.html new file mode 100644 index 000000000..fda06c25c --- /dev/null +++ b/docs/dds/umn/dds_03_0040.html @@ -0,0 +1,19 @@ + + +

Task Center

+

Scenarios

This section describes how to view the progress and result of asynchronous tasks on the Task Center page.

+

Currently, only the following tasks can be viewed:

+ +

Tasks that fail to be executed will be retained for seven days by default.

+
+
+

Procedure

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Task Center.
  3. On the Task Center page, locate the target task and click to expand its details.

    To identify the target task, you can use the task name and DB instance name/ID or select task status or types in the drop-down list in the upper right corner.

    +

  4. View the execution progress and result of the task.
+
+
+
+
+
Parent topic: Managing DDS DB Instances
+
+
+ diff --git a/docs/dds/umn/dds_03_0042.html b/docs/dds/umn/dds_03_0042.html new file mode 100644 index 000000000..89de3283a --- /dev/null +++ b/docs/dds/umn/dds_03_0042.html @@ -0,0 +1,20 @@ + + +

Restoring a Cluster Instance from a Backup

+

Scenarios

This section guides you on how to restore a DB instance from a backup.

+
+

Currently, DDS only supports restoring backups to a new DB instance.

+
+

Method 1

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target cluster instance.
  3. In the navigation pane on the left, click Backups & Restorations.
  4. On the Backups & Restorations page, locate the target backup in the backup list and click Restore in the Operation column. In the displayed dialog box, click OK.
  5. On the displayed page, create a DB instance using the same configurations as the backup. The new DB instance is independent from the original one.

    • You are recommended to deploy the restored DB instance in a different AZ to ensure that applications will not be adversely affected by the failure in any single AZ, improving data reliability.
    • The database type, DB instance type, compatible MongoDB version, storage engine, storage type, and shard quantity must be the same as those of the original and cannot be changed.
    • The quantity of mongos is 2 by default and ranges from 2 to 16. You can specify the quantity.
    • The storage space is the same as that of the original instance by default. You can only increase the storage space.
    • Other settings are the same as those of the original DB instance by default and can be modified. For details, see section Creating a Cluster Instance.
    +

+
+

Method 2

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Backup Management.
  3. On the Backup Management page, locate the backup to restore on the Clusters tab and click Restore in the Operation column. In the displayed dialog box, click OK.
  4. On the displayed page, create a DB instance using the same configurations as the backup. The new DB instance is independent from the original one.

    • You are recommended to deploy the restored DB instance in a different AZ to ensure that applications will not be adversely affected by the failure in any single AZ, improving data reliability.
    • The database type, DB instance type, compatible MongoDB version, storage engine, storage type, and shard quantity must be the same as those of the original and cannot be changed.
    • The quantity of mongos is 2 by default and ranges from 2 to 16. You can specify the quantity.
    • The storage space is the same as that of the original instance by default. You can only increase the storage space.
    • Other settings are the same as those of the original DB instance by default and can be modified. For details, see section Creating a Cluster Instance.
    +

+
+
+
+
+
Parent topic: Backup and Restore
+
+
+ diff --git a/docs/dds/umn/dds_03_0043.html b/docs/dds/umn/dds_03_0043.html new file mode 100644 index 000000000..927497319 --- /dev/null +++ b/docs/dds/umn/dds_03_0043.html @@ -0,0 +1,20 @@ + + +

Restoring a Replica Set Instance from a Backup

+

Scenarios

This section guides you on how to restore a replica set instance from a backup.

+
+

Currently, DDS only supports restoring backups to a new DB instance.

+
+

Method 1

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target replica set instance.
  3. In the navigation pane on the left, click Backups & Restorations.
  4. On the Backups & Restorations page, locate the target backup in the backup list and click Restore in the Operation column. In the displayed dialog box, click OK.
  5. On the displayed page, create a DB instance using the same configurations as the backup. The new DB instance is independent from the original one.

    • You are recommended to deploy the restored DB instance in a different AZ to ensure that applications will not be adversely affected by the failure in any single AZ, improving data reliability.
    • The database type, DB instance type, compatible MongoDB version, storage engine, and storage type must be the same as those of the original and cannot be changed.
    • The storage space is the same as that of the original instance by default. You can only increase the storage space.
    • Other settings are the same as those of the original DB instance by default and can be modified. For details, see section Creating a Replica Set Instance.
    +

+
+

Method 2

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Backup Management.
  3. On the Backup Management page, click the Replica Sets tab, locate the backup to restore, and click Restore in the Operation column. In the displayed dialog box, click OK.
  4. On the displayed page, create a DB instance using the same configurations as the backup. The new DB instance is independent from the original one.

    • You are recommended to deploy the restored DB instance in a different AZ to ensure that applications will not be adversely affected by the failure in any single AZ, improving data reliability.
    • The database type, DB instance type, compatible MongoDB version, storage engine, and storage type must be the same as those of the original and cannot be changed.
    • The storage space is the same as that of the original instance by default. You can only increase the storage space.
    • Other settings are the same as those of the original DB instance by default and can be modified. For details, see section Creating a Replica Set Instance.
    +

+
+
+
+
+
Parent topic: Backup and Restore
+
+
+ diff --git a/docs/dds/umn/dds_03_0044.html b/docs/dds/umn/dds_03_0044.html new file mode 100644 index 000000000..69f397b19 --- /dev/null +++ b/docs/dds/umn/dds_03_0044.html @@ -0,0 +1,15 @@ + + +

Changing a Parameter Group Description

+

The description of a default parameter group cannot be modified.

+
+

Procedure

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Parameter Group Management.
  3. On the Parameter Group Management page, select the Clusters or Replica Sets tab, locate the parameter group you created and click in the Description column.
  4. Enter new description information. The parameter group description contains a maximum of 256 characters and cannot contain the carriage return character and the following special characters: >!<"&'=

    • If you want to submit the change, click . After the modification is successful, you can view the new description in the Description column of the parameter group list.
    • If you want to cancel the change, click .
    +

+
+
+
+
+
Parent topic: Parameter Group
+
+
+ diff --git a/docs/dds/umn/dds_03_0050.html b/docs/dds/umn/dds_03_0050.html new file mode 100644 index 000000000..6b70a0cef --- /dev/null +++ b/docs/dds/umn/dds_03_0050.html @@ -0,0 +1,17 @@ + + +

Manually Switching the Primary and Secondary Nodes of a Replica Set

+

Scenarios

A replica set consists of the primary node, secondary node, and hidden node. Primary and secondary nodes allow access from external services by providing IP addresses. Hidden nodes are only used for backing up data. When a primary node becomes faulty, the system automatically selects a new primary node to ensure high availability. In addition, DDS supports the primary/secondary switchover so you can perform switchovers in scenarios such as disaster recovery.

+
  • You can perform a switchover when the DB instance status is Available, and Changing a security group.
  • Services may be interrupted during the switchover. Ensure that your client supports reconnection.
  • The longer the delay for primary/secondary synchronization, the more time is needed for a primary/secondary switchover. Therefore, if the primary to secondary synchronization delay exceeds 300s, the primary/secondary switchover is not allowed. For details about the delay for the primary/secondary synchronization, see What Is the Time Delay for Primary/Secondary Synchronization in a Replica Set?
+
+
+

Procedure

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target replica set instance.
  3. In the Node Information area on the Basic Information page, click Switch.
  4. In the displayed dialog box, click Yes.
  5. Check the result.

    • During the switchover process, the DB instance status changes to Switchover in progress. After the switchover is complete, the status is restored to Available.
    • In the Node Information area, you can view the switchover result.
    • After the switchover, the previous primary node becomes the secondary node. You need to reconnect to the primary node. For details, see Connecting to a DB Instance Through a Client.
    +

+
+
+
+
+
Parent topic: DB Instance Operations
+
+
+ diff --git a/docs/dds/umn/dds_03_0051.html b/docs/dds/umn/dds_03_0051.html new file mode 100644 index 000000000..c01aa9df2 --- /dev/null +++ b/docs/dds/umn/dds_03_0051.html @@ -0,0 +1,16 @@ + + +

Exporting DB Instance Information

+

Scenarios

This section guides you on how to export DB instance information for analysis.

+
+

Exporting DB Instance Information

  1. Log in to the DDS console.
  2. On the Instance Management page, click in the upper right corner of the instance list.
  3. In the pop-up box, select the desired items and click OK.
  4. View the .xls file exported to your local PC.
+
+

Export the specified instance on the current page.

  1. Log in to the DDS console.
  2. On the Instance Management page, click in the upper right corner of the instance list.
  3. In the pop-up box, select the desired items and click OK.
  4. View the .xls file exported to your local PC.
+
+
+
+
+
Parent topic: DB Instance Operations
+
+
+ diff --git a/docs/dds/umn/dds_03_0052.html b/docs/dds/umn/dds_03_0052.html new file mode 100644 index 000000000..6c4432f95 --- /dev/null +++ b/docs/dds/umn/dds_03_0052.html @@ -0,0 +1,49 @@ + + +

Migrating Data

+

Scenarios

DDS supports access through EIPs by enabling public accessibility. You can also access a database through an ECS in the private network.

+

Before migrating data from a MongoDB database to DDS, transfer data to a .json file using the mongoexport tool. This section guides you on how to import the data from the JSON files to DDS using the mongoimport tool on the ECS or the device that can access DDS.

+
+

Preparations

  1. An ECS or a device that can access DDS is ready for use.
    • To connect to a DDS DB instance from an ECS, you need to create and log in to the ECS. For details, see How Can I Create and Log In to an ECS?
    • To bind an EIP to a DB instance:
      1. Bind an EIP to a node in the DB instance. For details about how to bind an EIP to a node, see "Binding and Unbinding an EIP" in section "Cluster" or "Replica Set".
      2. Ensure that your local device can access the EIP that has been bound to the DB instance.
      +
    +
  2. A migration tool has been installed on the prepared ECS or the device.

    For details on how to install the migration tool, see How Can I Install a MongoDB Client?

    +

    The MongoDB client provides the mongoexport and mongoimport tools.

    +
    +
+
+

Exporting Data

  1. Log in to the ECS or the device that can access DDS.
  2. Use the mongoexport tool to transfer data from the source database to a .json file.

    The SSL connection is used as an example. If you select a common connection, delete --ssl --sslAllowInvalidCertificates from the following command.

    +

    ./mongoexport --host <DB_ADDRESS> --port <DB_PORT> --ssl --sslAllowInvalidCertificates --type json --authenticationDatabase <AUTH_DB> -u <DB_USER> --db <DB_NAME> --collection <DB_COLLECTION> --out <DB_PATH>

    +
    • DB_ADDRESS indicates the database address.
    • DB_PORT indicates the database port.
    • AUTH_DB indicates the database for storing DB_USER information. Generally, this value is admin.
    • DB_USER indicates the database user.
    • DB_NAME indicates the name of the database from which data will be exported.
    • DB_COLLECTION indicates the collection of the database from which data will be exported.
    • DB_PATH indicates the path where the .json file is located.
    +

    Enter the database administrator password when prompted:

    +
    Enter password:
    +

    The following is an example. After the command is executed, the exportfile.json file will be generated:

    +

    ./mongoexport --host 192.168.1.21 --port 8635 --ssl --sslAllowInvalidCertificates --type json --authenticationDatabase admin -u rwuser --db test02 --collection Test --out /tmp/mongodb/export/exportfile.json

    +

  3. Check the result.

    If information similar to the following is displayed, the data is successfully exported. x indicates the number of exported data records.

    +
    exported x records
    +

  4. Compress the exported .json file.

    gzip exportfile.json

    +

    Compressing the file helps reduce the time needed to transmit all the data. The compressed file is exportfile.json.gz.

    +

+
+

Importing Data

  1. Log in to the ECS or the device that can access DDS.
  2. Upload the data to be imported to the ECS or the device that can access DDS.

    Select an uploading method based on the OS you are using. In Linux, for example, run the following command:

    +

    scp <IDENTITY_FILE> <REMOTE_USER>@<REMOTE_ADDRESS>:<REMOTE_DIR>

    +
    • IDENTITY_FILE indicates the directory where the exportfile.json.gz file is located. The file access permission is 600.
    • REMOTE_USER indicates the ECS OS user.
    • REMOTE_ADDRESS indicates the ECS address.
    • REMOTE_DIR indicates the directory of the ECS to which the exportfile.json.gz file is uploaded.
    +

    In Windows, upload exportfile.json.gz to the ECS using file transfer tools.

    +

  3. Decompress the package.

    gzip -d exportfile.json.gz

    +

  4. Import the JSON file to the DDS database.

    The SSL connection is used as an example. If you select a common connection, delete --ssl --sslAllowInvalidCertificates from the following command.

    +

    ./mongoimport --host <DB_ADDRESS> --port <DB_PORT> --ssl --sslAllowInvalidCertificates --type json --authenticationDatabase <AUTH_DB> -u <DB_USER> --db <DB_NAME> --collection <DB_COLLECTION> --file <DB_PATH>

    +
    • DB_ADDRESS indicates the DB instance IP address.
    • DB_PORT indicates the database port.
    • AUTH_DB indicates the database that authenticates DB_USER. Generally, this value is admin.
    • DB_USER indicates the account name of the database administrator.
    • DB_NAME indicates the name of the database to which data will be imported.
    • DB_COLLECTION indicates the collection of the database to which data will be imported.
    • DB_PATH indicates the path where the .json file is located.
    +

    Enter the database administrator password when prompted:

    +
    Enter password:
    +

    The following is an example:

    +

    ./mongoimport --host 192.168.1.21 --port 8635 --ssl --sslAllowInvalidCertificates --type json --authenticationDatabase admin -u rwuser --db test02 --collection Test --file /tmp/mongodb/export/exportfile.json

    +

  5. Check the result.

    If information similar to the following is displayed, the data is successfully imported. x indicates the number of imported data records.

    +
    imported x records
    +

+
+
+
+
+
Parent topic: Managing DDS DB Instances
+
+
+ diff --git a/docs/dds/umn/dds_03_0057.html b/docs/dds/umn/dds_03_0057.html new file mode 100644 index 000000000..ec3d76e35 --- /dev/null +++ b/docs/dds/umn/dds_03_0057.html @@ -0,0 +1,49 @@ + + +

Managing Database Accounts

+

Scenarios

This section guides you through how to create a database account and change the account password to manage the instances you created.

When creating a database account for a specified DB instance, you are advised to enable the SSL connection to improve data security.

+
+
+
+

Prerequisites

A DDS DB instance has been connected. +
+
+

Account Description

To provide management services for DDS DB instances, users root, monitor, and backup are created when you create a DDS DB instance. Attempting to delete, rename, change the passwords, or change privileges for these accounts will result in errors.

+

You can change the password of the database administrator rwuser and any accounts you create.

+
+

Setting Password Strength for Database Accounts

+

When you create a DB instance, the system automatically checks your password strength. You can change the password as user rwuser. For security reasons, you are advised to set up a strong password.

+
+

Creating an Account

  1. Run the following command to select the admin database:

    use admin

    +

  2. Run the following command to create a database account (user1 as an example):

    db.createUser({user: "user1", pwd: "Test_12345", passwordDigestor:"server", roles:[{role: "root", db: "admin"}]})

    +
    • server: indicates that the password is encrypted on the server.
    • Test_12345: indicates the example new password. The password must be 8 to 32 characters in length and contain uppercase letters, lowercase letters, digits, and special characters, such as ~@#%-_!*+=^?
    • roles restricts the rights of the account. If an empty array is specified, the account does not have any permission.
    +

  3. Check the result:

    The account is successfully created if the following information is displayed:

    +
    Successfully added user: {
+        "user" : "user1",
+        "passwordDigestor" : "server",
+        "roles" : [
+                {
+                        "role" : "root",
+                        "db" : "admin"
+                }
+        ]
+}
    +

+
+

Changing a Password

  1. Run the following command to select the admin database:

    use admin

    +

  2. Uses user user1 as an example. Run the following command to change its password:

    db.updateUser("user1", {passwordDigestor:"server",pwd:"newPasswd12#"})

    +
    • server: indicates that the password is encrypted on the server.
    • newPasswd12#: indicates the example new password. The password must be 8 to 32 characters in length and contain uppercase letters, lowercase letters, digits, and special characters, such as ~@#%-_!*+=^?
    +

  3. Check the setting result. The password is successfully changed if the following information is displayed:

    • Cluster
      mongos>
      +
    • Replica set
      replica:PRIMARY>
      +
    +

+
+
+
+
+
Parent topic: Managing DDS DB Instances
+
+
+ diff --git a/docs/dds/umn/dds_03_0075.html b/docs/dds/umn/dds_03_0075.html new file mode 100644 index 000000000..dc719d32f --- /dev/null +++ b/docs/dds/umn/dds_03_0075.html @@ -0,0 +1,18 @@ + + +

Modifying the DB Instance Name

+

Scenarios

This section guides you on how to modify the DB instance name to identify different DB instances.

+
+

Method 1

  1. Log in to the DDS console.
  2. On the Instance Management page, click next to the specified DB instance name.

    • If you want to submit the change, click OK. The DB instance name can be 4 to 64 characters long. It must start with a letter and can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).
    • If you want to cancel the change, click Cancel.
    +

  3. View the change result on the Instance Management page.
+
+

Method 2

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the DB Information area on the Basic Information page, click in the DB Instance Name field to change the instance name.

    • If you want to submit the change, click . The DB instance name can be 4 to 64 characters long. It must start with a letter and can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).
    • If you want to cancel the change, click .
    +

  4. View the modification result.
+
+
+
+
+
Parent topic: DB Instance Operations
+
+
+ diff --git a/docs/dds/umn/dds_03_0078.html b/docs/dds/umn/dds_03_0078.html new file mode 100644 index 000000000..0c14040c7 --- /dev/null +++ b/docs/dds/umn/dds_03_0078.html @@ -0,0 +1,23 @@ + + +

Viewing DDS Metrics

+

Scenarios

Cloud Eye monitors DDS running statuses. You can obtain the monitoring metrics of DDS on the management console.

+

Monitored data requires a period of time for transmission and display. The status of DDS displayed on the Cloud Eye page is the status obtained 5 to 10 minutes before. You can view the monitored data of a newly created DB instance 5 to 10 minutes later.

+
+

Prerequisites

+

Cloud Eye will delete a DDS DB instance or node that becomes faulty for 24 hours from the monitoring list and will not monitor it any more. However, you need to manually clear its alarm rules.

+
+ +
+

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner and select a region and a project.
  3. Under Management & Deployment, click Cloud Eye.
  4. In the navigation pane on the left, choose Cloud Service Monitoring > Document Database Service.
  5. On the displayed page, locate the target instance and click View Metric in the Operation column.
  6. In the DDS monitoring area, you can select a duration to view the monitoring data.

    You can view the monitoring data of DDS in the recent 1 hour, 3 hours, or 12 hours. To view the monitoring curve of a longer time range, click to enlarge the graph.

    +

+
+
+
+
+
Parent topic: Interconnected with Cloud Eye
+
+
+ diff --git a/docs/dds/umn/dds_08_0001.html b/docs/dds/umn/dds_08_0001.html new file mode 100644 index 000000000..af764775d --- /dev/null +++ b/docs/dds/umn/dds_08_0001.html @@ -0,0 +1,18 @@ + + +

Changing DB Instance Classes

+

+
+
+ + +
+
Parent topic: Managing DDS DB Instances
+
+
+ diff --git a/docs/dds/umn/dds_change_history.html b/docs/dds/umn/dds_change_history.html new file mode 100644 index 000000000..527030798 --- /dev/null +++ b/docs/dds/umn/dds_change_history.html @@ -0,0 +1,195 @@ + + +

Change History

+
+
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Released On

+

Description

+

2020-10-15

+

Modified the following content:

+ +

2019-11-07

+		 +

Modified the following content:

+

Supported DB instances that are compatible with MongoDB 3.4 Community Edition in sections Database Engine and Version, Creating a Cluster Instance, Creating a Replica Set Instance, and How Can I Install a MongoDB Client?

+ +

2019-09-16

+

Modified the following content:

+
  • Added the description of disabling OBS Browser certificate verification and the procedure for enabling the certificate verification in section Downloading Backup Files.
+

2019-08-19

+

Added the following content:

+ +

Modified the following content:

+ +

2019-07-24

+

Modified the following content:

+ +

2019-07-17

+

Modified the following content:

+ +

2019-07-03

+

Added the following content:

+ +

Modified the following content:

+ + +

2019-03-12

+

Accepted in OTC-4.0/Agile.

+

2019-02-15

+

Modified the following content:

+ +

2019-01-31

+

Modified the following content:

+ +

2018-12-29

+

Added the following content:

+ +

Modified the following content:

+ +

2018-10-08

+

Modified the following content:

+ +

2018-09-10

+

Modified the following content:

+
  • Deleted the release numbers and retained the release dates only in accordance with the unified public cloud style.
  • Modified the description about the parameter group quotas in section Creating a Parameter Group.
+

2018-08-31

+

Added the following content:

+ +

Modified the following content:

+ +

2018-08-17

+

Modified the following content:

+
  • Modified the description of high-availability replica sets in section Replica Set Architecture.
  • Modified the description about the parameter group quotas in section Creating a Parameter Group.
  • Optimized the description of the step following the successful creation of a DB instance in sections Creating a Cluster Instance and Creating a Replica Set Instance.
  • Changed HA Type to DB Instance Type displayed on the page for creating a DB instance, optimized the buttons of the warning dialog box of restart and delete operations, and synchronized the changes to the document.
+

2018-08-03

+

Added the following content:

+ +

Modified the following content:

+ +

2018-07-03

+

Accepted in OTC-3.1.

+

2018-06-27

+

Added the following content:

+ +

Modified the following content:

+ +

2018-06-21

+

Modified the following content:

+
  • Modified the procedure for creating a DB instance and fixed the storage space of config at 20 GB in section Creating a Cluster Instance.
  • Supported the enabling or disabling the automated backup policy in section Setting Automated Backup Policy.
  • Moved the subsection "Monitoring" in chapter "Managing DDS DB Instances" to a new section Monitoring.
+

2018-06-04

+

Modified the following content:

+ +

2018-05-04

+

Added the following content:

+ +

Modified the following content:

+ +

2018-03-09

+

Modified the following content:

+
  • Modified the description of DDS and changed its location in section What Is DDS?
  • Added the tag editing function in section Tag.
+

2018-02-23

+

Added the following content:

+ +

Modified the following content:

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  • Added the description in section Setting Automated Backup Policy: If you set the retention period to one or more days, the backup policy is enabled and a full automated backup is triggered instantly.
+

2018-02-19

+

Accepted in OTC-3.0.

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2018-02-09

+

Modified the following content:

+ +

2018-02-02

+

Added the following content:

+ +

Modified the following content:

+ +

2018-01-30

+

This issue is the first official release.

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+

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+ diff --git a/docs/dds/umn/dds_faq_0001.html b/docs/dds/umn/dds_faq_0001.html new file mode 100644 index 000000000..aae0097b6 --- /dev/null +++ b/docs/dds/umn/dds_faq_0001.html @@ -0,0 +1,14 @@ + + +

What Precautions Should Be Taken When Using DDS?

+
  1. Failover

    DDS uses multiple mongos, replica sets, and shards to ensure data reliability. When a mongos is faulty, the other mongos takes over services immediately to ensure service continuity. A replica set consists of a primary, a secondary, and a hidden node. When the primary node is faulty, DDS selects the secondary node as the new primary within 30 seconds.

    +
  2. ECSs used for DB instances are invisible to you. Your applications can access the IP addresses and ports corresponding to the database only.
  3. Backup files stored on OBS are invisible to you. They are only visible in the DDS backend management system.
  4. Precautions after applying for DDS:

    After purchasing DDS DB instances, you do not need to perform basic database O&M operations, such as HA and security patches. You need to pay attention to the following:

    +
    1. Whether the vCPUs, IOPS, and storage space for DDS DB instances are sufficient. If any of them is insufficient, optimize or upgrade the related configuration.
    2. Whether the performance of DDS DB instances is satisfying, whether a large number of slow query statements exist, whether query statements need to be optimized, and whether any index is redundant or missing.
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Parent topic: Common FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0002.html b/docs/dds/umn/dds_faq_0002.html new file mode 100644 index 000000000..95736a4ee --- /dev/null +++ b/docs/dds/umn/dds_faq_0002.html @@ -0,0 +1,12 @@ + + +

What Is the Availability of DDS DB Instances?

+

Formula for a DDS DB instance availability:

+

DDS DB instance availability = (1 – Failure duration/Total service duration) × 100%.

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+
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Parent topic: Common FAQs
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+
+ diff --git a/docs/dds/umn/dds_faq_0003.html b/docs/dds/umn/dds_faq_0003.html new file mode 100644 index 000000000..87de04acb --- /dev/null +++ b/docs/dds/umn/dds_faq_0003.html @@ -0,0 +1,11 @@ + + +

Can I Use a Template to Create DDS DB Instances?

+

You do not need a template to create DDS DB instances. When you create a DB instance, DDS provides different DB instance specifications which are similar to templates.

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Parent topic: Common FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0004.html b/docs/dds/umn/dds_faq_0004.html new file mode 100644 index 000000000..56d41dadd --- /dev/null +++ b/docs/dds/umn/dds_faq_0004.html @@ -0,0 +1,11 @@ + + +

Will My DDS DB Instances Be Affected by Other Users' DDS DB Instances?

+

No. Your DDS DB instances and resources are isolated from others.

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Parent topic: Common FAQs
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+
+ diff --git a/docs/dds/umn/dds_faq_0005.html b/docs/dds/umn/dds_faq_0005.html new file mode 100644 index 000000000..3d15340ba --- /dev/null +++ b/docs/dds/umn/dds_faq_0005.html @@ -0,0 +1,13 @@ + + +

What Should I Do If My Query Is Slow?

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+ +
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Parent topic: Management FAQs
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+
+ diff --git a/docs/dds/umn/dds_faq_0006.html b/docs/dds/umn/dds_faq_0006.html new file mode 100644 index 000000000..3e903a8f7 --- /dev/null +++ b/docs/dds/umn/dds_faq_0006.html @@ -0,0 +1,14 @@ + + +

What Is the Time Delay for Primary/Secondary Synchronization in a Replica Set?

+

The delay for primary/secondary synchronization cannot be calculated using a formula. The delay is affected by the following factors:

+
  1. Network communication status
  2. Transaction pressure on the primary node, that is, transactions per second (TPS) of the primary node
  3. Transaction size executed by the primary node, that is, the duration of a transaction execution
  4. Load of the secondary node
+

If the primary node bears heavy pressure within a period and executes a large number of transactions per second, the synchronization to the secondary node is delayed.

+

You can view Delay Between Primary and Secondary Nodes of the secondary node on the Cloud Eye console to know the synchronization delay.

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Parent topic: Management FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0007.html b/docs/dds/umn/dds_faq_0007.html new file mode 100644 index 000000000..eeba55b74 --- /dev/null +++ b/docs/dds/umn/dds_faq_0007.html @@ -0,0 +1,13 @@ + + +

Why Is Data Missing from My Database?

+

DDS does not delete or perform any operations on any user data. If this problem occurs, check whether a misoperation has been performed. Restore the data using backup files, if necessary.

+

Solution:

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Parent topic: Management FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0008.html b/docs/dds/umn/dds_faq_0008.html new file mode 100644 index 000000000..041647813 --- /dev/null +++ b/docs/dds/umn/dds_faq_0008.html @@ -0,0 +1,11 @@ + + +

Will My Backups Be Deleted If I Delete My Cloud Account?

+

If your cloud account is deleted, both your automated and manual backups are deleted.

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Parent topic: Management FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0009.html b/docs/dds/umn/dds_faq_0009.html new file mode 100644 index 000000000..4df8f88d4 --- /dev/null +++ b/docs/dds/umn/dds_faq_0009.html @@ -0,0 +1,11 @@ + + +

Are My DDS DB Instances Available When Scaling?

+

Yes. Adding shards does not affect the existing shards. Services are still available.

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Parent topic: Management FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0010.html b/docs/dds/umn/dds_faq_0010.html new file mode 100644 index 000000000..96d91fe96 --- /dev/null +++ b/docs/dds/umn/dds_faq_0010.html @@ -0,0 +1,11 @@ + + +

Does DDS Support Read/Write Splitting?

+

Yes. DDS can perform write operations only on the primary node in a replica set. You can configure DDS to perform read operations on the secondary node to split read and write operations.

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Parent topic: Management FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0011.html b/docs/dds/umn/dds_faq_0011.html new file mode 100644 index 000000000..d44462f8f --- /dev/null +++ b/docs/dds/umn/dds_faq_0011.html @@ -0,0 +1,12 @@ + + +

Can an External Server Access the DDS DB Instance?

+

You can access the DDS DB instance using the following methods:

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Parent topic: Connection and Access FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0012.html b/docs/dds/umn/dds_faq_0012.html new file mode 100644 index 000000000..a20b364c7 --- /dev/null +++ b/docs/dds/umn/dds_faq_0012.html @@ -0,0 +1,11 @@ + + +

What Is the Number of DDS Database Connections?

+

The number of DDS database connections indicates the number of applications that can be simultaneously connected to the database. Generally, it indicates the number of connections to mongos. The number of DDS connections is irrelevant to the maximum number of users allowed by applications or websites.

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Parent topic: Connection and Access FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0013.html b/docs/dds/umn/dds_faq_0013.html new file mode 100644 index 000000000..5edee92c9 --- /dev/null +++ b/docs/dds/umn/dds_faq_0013.html @@ -0,0 +1,16 @@ + + +

What Should I Do If the ECS Cannot Connect to a DDS DB Instance?

+

Perform the following steps to identify the problem: The following uses the cluster instance as an example.

+
  1. Check whether the ECS and DDS DB instance are located in the same VPC.

    • If they are in the same VPC, go to 2.
    • If they are in different VPCs, create an ECS in the VPC where the DDS DB instance is located.
    +

  2. Check whether a security group has been added to the ECS.

    • If yes, check whether its configuration rules are suitable. For details, see the security group description in section Setting a Security Group. Then, go to 3.
    • If no security group has been added, go to the VPC console from the ECS details page and click Security Groups to add a security group.
    +

  3. On the ECS, check whether the DDS DB instance address port can be connected.

    telnet <DB instance address> {8635}
    +
    • If the port can be connected, the network is normal. Check the database account and password. For details, see section Connecting to a DB Instance Through a Client.
    • If the port cannot be connected, contact post-sales technical support for troubleshooting.
    +

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Parent topic: Connection and Access FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0014.html b/docs/dds/umn/dds_faq_0014.html new file mode 100644 index 000000000..92c5d28f8 --- /dev/null +++ b/docs/dds/umn/dds_faq_0014.html @@ -0,0 +1,17 @@ + + +

What Should I Do If a Database Client Problem Causes a Connection Failure?

+

Identify a DDS DB instance connection failure caused by a client problem from the following aspects.

+
  1. ECS Security Policy

    In Windows, check whether the DDS port is enabled in the Windows security policy.

    +

    In Linux, run the iptables command to check whether the DDS port is enabled in firewall settings.

    +
  2. Application Configuration

    Check whether the IP address, port parameter, and Java database connectivity (JDBC) are configured correctly.

    +
+

If the problem persists, contact post-sales technical support.

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Parent topic: Connection and Access FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0015.html b/docs/dds/umn/dds_faq_0015.html new file mode 100644 index 000000000..665a36233 --- /dev/null +++ b/docs/dds/umn/dds_faq_0015.html @@ -0,0 +1,14 @@ + + +

What Should I Do If a DDS Server Problem Causes a Connection Failure?

+

Check whether the following problems occur on the DDS database. Check the following one at a time.

+
  1. The maximum number of connections is reached.

    Solution: Use the Cloud Eye resource monitoring function to check whether the number of current connections and the CPU usage are normal. If the number of connections or CPU usage reaches the maximum, restart the DDS database, disconnect DB instances, or increase the node quantity.

    +
  2. DB instance status is normal, such as a restarting or system failure.

    Solution: Restart the DB instance to see if the problem is resolved. If the problem persists, contact post-sales technical support.

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Parent topic: Connection and Access FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0016.html b/docs/dds/umn/dds_faq_0016.html new file mode 100644 index 000000000..2cc0a3559 --- /dev/null +++ b/docs/dds/umn/dds_faq_0016.html @@ -0,0 +1,11 @@ + + +

How Can My Applications Access a DDS DB Instance in a VPC?

+

Ensure that the ECS where in which your applications are located is in the same VPC and subnet as the DDS DB instance. If the ECS and the DDS DB instance are in different subnets or VPCs, modify the VPC route table and network access control list (ACL) to ensure the ECS can access the DDS DB instance.

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Parent topic: Connection and Access FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0017.html b/docs/dds/umn/dds_faq_0017.html new file mode 100644 index 000000000..4e6e16e56 --- /dev/null +++ b/docs/dds/umn/dds_faq_0017.html @@ -0,0 +1,12 @@ + + +

Do Applications Need to Support Automatic Reconnecting to the DDS Database?

+

It is recommended that your applications support automatic reconnections to the database. After a database reboot, your applications will automatically reconnect to the database to increase service availability and continuity.

+

In addition, you are advised to set your applications to connect to the database using a long connection to reduce resource consumption and improve performance.

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Parent topic: Connection and Access FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0018.html b/docs/dds/umn/dds_faq_0018.html new file mode 100644 index 000000000..5ee2f4538 --- /dev/null +++ b/docs/dds/umn/dds_faq_0018.html @@ -0,0 +1,23 @@ + + +

How Can I Install a MongoDB Client?

+

MongoDB official website provides client installation packages for different OSs. Download the official binary installation package at https://www.mongodb.com/download-center#community.

+

The following uses Red Hat Linux 7 and MongoDB 3.4.0 as examples to describe how to obtain the required installation package and install the MongoDB client.

+

Procedure

  1. Obtain the installation package.

    1. Log in at https://www.mongodb.com/download-center#community.
    2. Choose Server, select RHEL 7.0 Linux 64-bit x64 for OS, and click All version binaries. Figure 1 shows an example.
      Figure 1 MongoDB official webpage
      +
    3. Open the downloading page, click linux/mongodb-linux-x86_64-rhel70-3.4.0.tgz to download the binary installation package of MongoDB 3.4.0.
      Figure 2 Downloading page
      +
    +

  2. Upload the installation package to the ECS. For details about how to log in to an ECS, see How Can I Create and Log In to an ECS?
  3. Decompress the installation package on the ECS.

    tar zxvf mongodb-linux-x86_64-rhel70-3.4.0.tgz

    +

  4. Obtain the client tool from the bin directory of the installation package.

    cd mongodb-linux-x86_64-rhel70-3.4.0/bin

    +

    The common tools are as follows:

    +
    • MongoDB client mongo
    • Data export tool mongoexport
    • Data import tool mongoimport
    +

  5. Before using a client tool, assign the execute permission to it.

    • Run the chmod +x mongo command to grant a client permission to connect to a DB instance.
    • Run the chmod +x mongoexport command to grant a client permission to export data.
    • Run the chmod +x mongoimport command to grant a client permission to import data.
    +

  6. Connect to a DB instance through the installed client.

    +

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Parent topic: Connection and Access FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0019.html b/docs/dds/umn/dds_faq_0019.html new file mode 100644 index 000000000..606bd7851 --- /dev/null +++ b/docs/dds/umn/dds_faq_0019.html @@ -0,0 +1,19 @@ + + +

What DB Instance Monitoring Metrics Do I Need to Pay Attention To?

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You need to focus on the CPU, memory, and storage space usage.

+

You can configure DDS to report alarms as needed. If an alarm is reported, you can take proper measures to clear it.

+

Configuration examples:

+ +

For details on Cloud Eye alarm configuration, see "Alarm Rule Management" in Cloud Eye Service User Guide.

+
+

Measures:

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If a storage usage alarm is reported, perform either of the following operations: +
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Parent topic: Parameter and Metric FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0021.html b/docs/dds/umn/dds_faq_0021.html new file mode 100644 index 000000000..dac731fce --- /dev/null +++ b/docs/dds/umn/dds_faq_0021.html @@ -0,0 +1,11 @@ + + +

What Security Protection Policies Does DDS Have?

+

DDS allows you to set the VPC which DDS DB instances belong to, ensuring that the DDS DB instances are isolated from other services. In addition, the IAM service is provided, achieving access control over DDS resources.

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Parent topic: Network and Security FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0022.html b/docs/dds/umn/dds_faq_0022.html new file mode 100644 index 000000000..929de2074 --- /dev/null +++ b/docs/dds/umn/dds_faq_0022.html @@ -0,0 +1,13 @@ + + +

Do I Need to Use DDS in a VPC?

+

A VPC allows you to create virtual network environment in a private and isolated network to control the private IP address range, subnets, route tables, and network gateways. The VPC also allows you to define the virtual network topology and network configuration to make the network similar to the traditional IP network you are operating in the data center.

+

You may need to use DDS in the VPC in the following cases:

+

You want to run Internet-oriented web applications and retain the backend server that the public cannot access. To do so, you can create an ECS and a DDS DB instance in the same VPC, allocate a public IP address for the ECS, and deploy a web server on the ECS.

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Parent topic: Network and Security FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0023.html b/docs/dds/umn/dds_faq_0023.html new file mode 100644 index 000000000..275cbeaf0 --- /dev/null +++ b/docs/dds/umn/dds_faq_0023.html @@ -0,0 +1,11 @@ + + +

How Do I Ensure the Security of DDS in a VPC?

+

The VPC security group helps ensure the security of DDS in a VPC. In addition, ACL can be used to allow or reject I/O network traffic for each subnet. Use the internal security infrastructure (including the network firewall, intrusion detection, and protection system) to monitor all IPsec VPN connection-based input and output network traffic for VPC.

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Parent topic: Network and Security FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0025.html b/docs/dds/umn/dds_faq_0025.html new file mode 100644 index 000000000..16b32cf92 --- /dev/null +++ b/docs/dds/umn/dds_faq_0025.html @@ -0,0 +1,11 @@ + + +

How Do I Back Up DDS to ECS?

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You can store DDS backup data on the ECS using mongoexport. However, you are advised not to store database backups on ECSs. You are advised to use the DDS backup function to store backups to a professional storage object, such as the OBS, to ensure high data reliability and service assurance.

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Parent topic: Storage FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0026.html b/docs/dds/umn/dds_faq_0026.html new file mode 100644 index 000000000..1356881e7 --- /dev/null +++ b/docs/dds/umn/dds_faq_0026.html @@ -0,0 +1,11 @@ + + +

How Long Does DDS Store Backup Data For?

+

The automated backup retention period is 7 days by default. You can set a backup retention period from 1 to 732 days. There is no limit on the manual backup retention period. You can delete manual backup files as needed.

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Parent topic: Storage FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0028.html b/docs/dds/umn/dds_faq_0028.html new file mode 100644 index 000000000..c8f09c974 --- /dev/null +++ b/docs/dds/umn/dds_faq_0028.html @@ -0,0 +1,12 @@ + + +

What Is the DDS DB Instance Storage Configuration?

+

The EVS is used for data storage of DDS DB instances. For details on the EVS, see Elastic Volume Service User Guide.

+

The DDS DB instance backup data is stored in the OBS and does not occupy the storage space you purchased. For details on the DDS DB instance storage configuration, see the Object Storage Service User Guide.

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Parent topic: Storage FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0029.html b/docs/dds/umn/dds_faq_0029.html new file mode 100644 index 000000000..8c1ae0de4 --- /dev/null +++ b/docs/dds/umn/dds_faq_0029.html @@ -0,0 +1,12 @@ + + +

What Should I Do If My Data Exceeds the Database Storage Space of a DDS DB Instance?

+

If the storage space required by your applications exceeds the allowed maximum space allocated to you, you can do either of the following:

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Parent topic: Storage FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0030.html b/docs/dds/umn/dds_faq_0030.html new file mode 100644 index 000000000..9b713d1ef --- /dev/null +++ b/docs/dds/umn/dds_faq_0030.html @@ -0,0 +1,11 @@ + + +

Which Items Occupy the Storage Space on My Purchased DDS DB Instances?

+

Both your common data (excluding backup data) and data required for ensuring DB instance proper running occupy the storage space on your purchased DDS DB instances. To ensure DB instance proper running, system database data, rollback logs, and indexes are required. Logs generated by DDS also occupy the DB instance storage space. These files ensure that DB instances run stably.

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Parent topic: Storage FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0031.html b/docs/dds/umn/dds_faq_0031.html new file mode 100644 index 000000000..fd76339b5 --- /dev/null +++ b/docs/dds/umn/dds_faq_0031.html @@ -0,0 +1,11 @@ + + +

What Overhead Does the Storage Space Have After I Applied for a DDS DB Instance?

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The storage space you applied for will contain the system overhead required for inode, reserved block, and database operation.

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Parent topic: Storage FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0032.html b/docs/dds/umn/dds_faq_0032.html new file mode 100644 index 000000000..88c9f2bc2 --- /dev/null +++ b/docs/dds/umn/dds_faq_0032.html @@ -0,0 +1,32 @@ + + +

Which Types of Logs and Files Occupy DDS DB Instance Storage Space?

+

Logs and files listed in the following table occupy storage space.

+ +
+ + + + + + + + + + + +

Database Type

+

File Type

+

DDS

+

Log files: DDS log files

+

Data files: database content and index file

+

Other files: some DDS temporary files

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Parent topic: Storage FAQs
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+ diff --git a/docs/dds/umn/dds_faq_0033.html b/docs/dds/umn/dds_faq_0033.html new file mode 100644 index 000000000..80f5316f8 --- /dev/null +++ b/docs/dds/umn/dds_faq_0033.html @@ -0,0 +1,244 @@ + + +

Which Commands are Supported or Restricted by DDS?

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The following tables list the commands supported and restricted by DDS.

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+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Table 1 Commands supported and restricted by DDS

Type

+

Supported Command

+

Restricted Command

+

Aggregates Commands

+

aggregate

+

count

+

distinct

+

group

+

mapReduce

+

Geospatial Commands

+

geoNear

+

geoSearch

+

Query and Write Operation Commands

+

find

+

insert

+

update

+

delete

+

findAndModify

+

getMore

+

getLastError

+

resetError

+

getPrevError

+

eval

+

parallelCollectionScan

+

Query Plan Cache Commands

+

planCacheListFilters

+

planCacheSetFilter

+

planCacheClearFilters

+

planCacheListQueryShapes

+

planCacheListPlans

+

planCacheClear

+

-

+

Authentication Commands

+

logout

+

authenticate

+

getnonce

+

authSchemaUpgrade

+

copydbgetnonce

+

User Management Commands

+

createUser

+

updateUser

+

dropUser

+

dropAllUsersFromDatabase

+

grantRolesToUser

+

revokeRolesFromUser

+

usersInfo

+

-

+

Role Management Commands

+

invalidateUserCache

+

createRole

+

updateRole

+

dropRole

+

dropAllRolesFromDatabase

+

grantPrivilegesToRole

+

revokePrivilegesFromRole

+

grantRolesToRole

+

revokeRolesFromRole

+

rolesInfo

+

-

+

Replication Commands

+

isMaster

+

replSetElect

+

replSetUpdatePosition

+

appendOplogNote

+

replSetFreeze

+

replSetGetStatus

+

replSetInitiate

+

replSetMaintenance

+

replSetReconfig

+

replSetStepDown

+

replSetSyncFrom

+

resync

+

applyOps

+

replSetGetConfig

+

Sharding Commands

+

enableSharding

+

getShardVersion

+

mergeChunks

+

shardCollection

+

split

+

splitChunk

+

splitVector

+

moveChunk

+

movePrimary

+

isdbgrid

+

flushRouterConfig

+

addShard

+

cleanupOrphaned

+

checkShardingIndex

+

listShards

+

removeShard

+

getShardMap

+

setShardVersion

+

shardingState

+

unsetSharding

+

Administration Commands

+

renameCollection

+

dropDatabase

+

listCollections

+

drop

+

create

+

convertToCapped

+

filemd5

+

createIndexes

+

listIndexes

+

dropIndexes

+

fsync

+

connectionStatus

+

collMod

+

reIndex

+

getParameter

+

currentOp

+

killOp

+

clone

+

cloneCollection

+

clean

+

connPoolSync

+

compact

+

setParameter

+

repairDatabase

+

repairCursor

+

touch

+

shutdown

+

cloneCollectionAsCapped

+

copydb

+

logRotate

+

Diagnostic Commands

+

availableQueryOptions

+

buildInfo

+

collStats

+

dataSize

+

dbStats

+

explain

+

features

+

listCommands

+

listDatabases

+

ping

+

serverStatus

+

whatsmyuri

+

connPoolStats

+

cursorInfo

+

dbHash

+

diagLogging

+

driverOIDTest

+

getCmdLineOpts

+

getLog

+

hostInfo

+

isSelf

+

netstat

+

profile

+

shardConnPoolStats

+

top

+

validate

+

Internal Commands

+

-

+

handshake

+

_recvChunkAbort

+

_recvChunkCommit

+

_recvChunkStart

+

_recvChunkStatus

+

_replSetFresh

+

mapreduce.shardedfinish

+

_transferMods

+

replSetHeartbeat

+

replSetGetRBID

+

_migrateClone

+

replSetElect

+

writeBacksQueued

+

writebacklisten

+

System Events Auditing Commands

+

-

+

logApplicationMessage

+
+
+
+
+
+
Parent topic: FAQs
+
+
+ diff --git a/docs/dds/umn/dds_faq_0034.html b/docs/dds/umn/dds_faq_0034.html new file mode 100644 index 000000000..69fcdc07e --- /dev/null +++ b/docs/dds/umn/dds_faq_0034.html @@ -0,0 +1,12 @@ + + +

How Can I Create and Log In to an ECS?

+

For details on how to create and log in to an ECS, see "Creating and Logging In to a Windows ECS" or "Creating and Logging In to a Linux ECS" in the Elastic Cloud Server User Guide.

+ +
+
+
+
Parent topic: Connection and Access FAQs
+
+
+ diff --git a/docs/dds/umn/dds_faq_0100.html b/docs/dds/umn/dds_faq_0100.html new file mode 100644 index 000000000..f34474566 --- /dev/null +++ b/docs/dds/umn/dds_faq_0100.html @@ -0,0 +1,23 @@ + + +

FAQs

+
+
+ +
+ diff --git a/docs/dds/umn/dds_faq_0101.html b/docs/dds/umn/dds_faq_0101.html new file mode 100644 index 000000000..ca6d74fcf --- /dev/null +++ b/docs/dds/umn/dds_faq_0101.html @@ -0,0 +1,21 @@ + + +

Common FAQs

+
+
+ + +
+
Parent topic: FAQs
+
+
+ diff --git a/docs/dds/umn/dds_faq_0102.html b/docs/dds/umn/dds_faq_0102.html new file mode 100644 index 000000000..db5eb3fb7 --- /dev/null +++ b/docs/dds/umn/dds_faq_0102.html @@ -0,0 +1,26 @@ + + +

Management FAQs

+

+
+
+ + +
+
Parent topic: FAQs
+
+
+ diff --git a/docs/dds/umn/dds_faq_0104.html b/docs/dds/umn/dds_faq_0104.html new file mode 100644 index 000000000..832b7f76f --- /dev/null +++ b/docs/dds/umn/dds_faq_0104.html @@ -0,0 +1,32 @@ + + +

Connection and Access FAQs

+

+
+
+ + +
+
Parent topic: FAQs
+
+
+ diff --git a/docs/dds/umn/dds_faq_0108.html b/docs/dds/umn/dds_faq_0108.html new file mode 100644 index 000000000..eeeb13318 --- /dev/null +++ b/docs/dds/umn/dds_faq_0108.html @@ -0,0 +1,15 @@ + + +

Parameter and Metric FAQs

+
+
+ + +
+
Parent topic: FAQs
+
+
+ diff --git a/docs/dds/umn/dds_faq_0109.html b/docs/dds/umn/dds_faq_0109.html new file mode 100644 index 000000000..c55096577 --- /dev/null +++ b/docs/dds/umn/dds_faq_0109.html @@ -0,0 +1,28 @@ + + +

Storage FAQs

+

+
+
+ + +
+
Parent topic: FAQs
+
+
+ diff --git a/docs/dds/umn/dds_faq_0110.html b/docs/dds/umn/dds_faq_0110.html new file mode 100644 index 000000000..d5ca274c9 --- /dev/null +++ b/docs/dds/umn/dds_faq_0110.html @@ -0,0 +1,20 @@ + + +

Network and Security FAQs

+

+
+
+ + +
+
Parent topic: FAQs
+
+
+ diff --git a/docs/dds/umn/dds_glossary.html b/docs/dds/umn/dds_glossary.html new file mode 100644 index 000000000..4fa53ba08 --- /dev/null +++ b/docs/dds/umn/dds_glossary.html @@ -0,0 +1,7 @@ + + +

Glossary

+

For details about the glossaries in this document, see Glossary.

+
+
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Connecting to a DB Instance Through a Client

+

Scenarios

This section guides you on how to connect to DB instances through a database client using a common connection or an SSL connection. You are advised to use SSL to encrypt connections to ensure data security.

+

Based on the application scenario, you can determine whether to access a DB instance through an EIP. For details, see Scenarios.

+

This section uses the Linux OS as an example to describe how to connect to a cluster instance.

+
+

Restrictions

For details about restrictions on connecting to a DB instance, see Restrictions.

+
+

Prerequisites

  1. An ECS or a device that can access DDS is ready for use.
    • To connect to a DDS DB instance from an ECS, you need to create and log in to the ECS. For details, see How Can I Create and Log In to an ECS?
    • To connect to a DB instance through an EIP:
      1. For details on how to bind an EIP, see section Binding an EIP.
      2. Ensure that your local device can access the EIP that has been bound to the DB instance.
      +
    +
  2. A MongoDB client has been installed on the prepared ECS or the device.

    For details on how to install a MongoDB client, see section How Can I Install a MongoDB Client?

    +
+
+

SSL Connection

  1. On the Instance Management page, click the target DB instance.
  2. In the navigation pane on the left, choose Connections.
  3. In the Basic Information area, click next to the SSL field to download the root certificate.
  4. Upload the root certificate to the ECS that connects to the DB instance or save the root certificate to a local device that can access DDS.

    The following describes how to upload the certificate to a Linux and Window ECS:

    +
    • In Linux, run the following command:
      scp <IDENTITY_FILE> <REMOTE_USER>@<REMOTE_ADDRESS>:<REMOTE_DIR>
      • IDENTITY_FILE indicates the directory where the root certificate locates. The file access permission is 600.
      • REMOTE_USER indicates the ECS OS user.
      • REMOTE_ADDRESS indicates the ECS address.
      • REMOTE_DIR indicates the directory of the ECS to which the root certificate is uploaded.
      +
      +
      +
    • In Windows, upload the root certificate using file transfer tools.
    +

  5. Connect to the DB instance in the directory where the MongoDB client is located.

    The Linux OS is used as an example.

    +

    ./mongo --host <DB_HOST> --port <DB_PORT> -u <DB_USER> -p --authenticationDatabase admin --ssl --sslCAFile <FILE_PATH>

    +

    Enter the database account password when prompted:

    +
    Enter password:
    +
    • A cluster instance uses the management IP address to generate SSL certificate. --sslAllowInvalidHostnames is needed for the SSL connection through an EIP.
    • DB_HOST indicates the IP address of the remotely connected DB instance. Obtain the value from the Private IP Address column in the node list on the Connections page. If a device can access the DB instance through an EIP, set this parameter to the EIP displayed in EIP column in the node list on the Connections page.
    • DB_PORT indicates the port number. Obtain the value from Database Port in the Basic Information area on the Connections page.
    • DB_USER indicates the database account name. The default value is rwuser.
    • FILE_PATH indicates the path where the root certificate is stored.
    +
    +

    Example:

    +

    ./mongo --host 192.168.1.6 --port 8635 -u rwuser -p --authenticationDatabase admin --ssl --sslCAFile /tmp/ca.crt

    +

  6. Check the connection result. If the following information is displayed, the connection is successful.

    mongos>
    +

+
+

Common Connection

To use the common connection mode, you need to disable the SSL connection. For details, see section Disabling SSL.

+
+
  1. Log in to the prepared ECS or the device that can access the document database.
  2. Connect to the DB instance in the directory where the MongoDB client is located.

    ./mongo --host <DB_HOST> --port <DB_PORT> -u <DB_USER> -p --authenticationDatabase admin

    +

    Enter the database account password when prompted:

    +
    Enter password:
    +
    • DB_HOST indicates the IP address of the remotely connected DB instance. Obtain the value from the Private IP Address column in the node list on the Connections page. If a device can access the DB instance through an EIP, set this parameter to the EIP displayed in EIP column in the node list on the Connections page.
    • DB_PORT indicates the port number. Obtain the value from Database Port in the Basic Information area on the Connections page.
    • DB_USER indicates the database account name. The default value is rwuser.
    +
    +

    Example:

    +

    ./mongo --host 192.168.1.6 --port 8635 -u rwuser -p --authenticationDatabase admin

    +

  3. Check the connection result. If the following information is displayed, the connection is successful.

    mongos>
    +

+
+
+
+
+
Parent topic: Connecting to a Cluster Instance
+
+
+ diff --git a/docs/dds/umn/en-us_topic_0104472218.html b/docs/dds/umn/en-us_topic_0104472218.html new file mode 100644 index 000000000..2bb4a7b92 --- /dev/null +++ b/docs/dds/umn/en-us_topic_0104472218.html @@ -0,0 +1,20 @@ + + +

Changing the CPU or Memory of a Cluster DB Instance

+

Scenarios

This section guides you on how to change the CPU or memory of a cluster instance.

+
  • A DB instance cannot be deleted when you are changing its CPU or memory.
  • Instances can be both scaled up and down.
  • Services will be interrupted for 5 to 10 minutes when you change DB instance CPU and memory. You are advised to perform this operation during off-peak hours.
+
+
+

Changing mongos

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target cluster instance.
  3. In the Node Information area on the Basic Information page, click the mongos tab, locate the target mongos, and click Change Instance Class in the Operation column.
  4. On the displayed page, modify required parameters and click Submit.
  5. View the DB instance CPU or memory modification result.

    • When the CPU or memory of a DB instance is being changed, the status displayed in the Status column is Changing instance class. This process takes about 10 minutes.
    • In the upper right corner of the DB instance list, click to refresh the list. The instance status changes to Available.
    • In the Node Information area on the Basic Information page, click the mongos tab and check whether the scaling up is successful.
    +

+
+

Changing shard

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target cluster instance.
  3. In the Node Information area on the Basic Information page, click the shard tab, locate the target shard, and click Change Instance Class in the Operation column.
  4. On the displayed page, modify required parameters and click Submit.
  5. View the DB instance CPU or memory modification result.

    • When the CPU or memory of a DB instance is being changed, the status displayed in the Status column is Changing instance class. This process takes about 25 to 30 minutes.
    • In the upper right corner of the DB instance list, click to refresh the list. The instance status changes to Available.
    • Go to the Basic Information page of the cluster instance you scaled up, click the shard tab in the Node Information area, and check whether the scaling up is successful.
    +

+
+
+
+
+
Parent topic: Changing DB Instance Classes
+
+
+ diff --git a/docs/dds/umn/en-us_topic_0104721795.html b/docs/dds/umn/en-us_topic_0104721795.html new file mode 100644 index 000000000..daea16db6 --- /dev/null +++ b/docs/dds/umn/en-us_topic_0104721795.html @@ -0,0 +1,17 @@ + + +

Changing the CPU or Memory of a Replica Set DB Instance

+

Scenarios

This section guides you on how to change the CPU or memory of your replica set instance.

+
  • A DB instance cannot be deleted when you are changing its CPU or memory.
  • Instances can be both scaled up and down.
  • Services will be interrupted for 5 to 10 minutes when you change DB instance CPU and memory. You are advised to perform this operation during off-peak hours.
+
+
+

Procedure

  1. Log in to the DDS console.
  2. On the Instance Management page, locate the target replica set instance and choose Change Instance Class in the Operation column.
  3. On the displayed page, modify required parameters and click Submit.
  4. View the DB instance CPU or memory modification result.

    • When the CPU or memory of a DB instance is being changed, the status displayed in the Status column is Changing instance class. This process takes about 25 to 30 minutes.
    • In the upper right corner of the DB instance list, click to refresh the list. The instance status changes to Available.
    • Go to the Basic Information page of the replica set instance you scaled up and check whether the scaling up is successful in the DB Information area.
    +

+
+
+
+
+
Parent topic: Changing DB Instance Classes
+
+
+ diff --git a/docs/dds/umn/en-us_topic_0105284966.html b/docs/dds/umn/en-us_topic_0105284966.html new file mode 100644 index 000000000..31bf9a285 --- /dev/null +++ b/docs/dds/umn/en-us_topic_0105284966.html @@ -0,0 +1,54 @@ + + +

Connecting to a DB Instance Through a Client

+

Scenarios

This section guides you on how to connect to DB instances through a database client using a common connection or an SSL connection. You are advised to use SSL to encrypt connections to ensure data security.

+

Based on the application scenario, you can determine whether to access a DB instance through an EIP. For details, see Scenarios.

+

You can directly perform operations on the primary and secondary nodes. Primary nodes are used for processing read and write requests. Secondary nodes replicate data from the primary and are used for processing read requests only.

+

This section uses the Linux OS as an example to describe how to connect to a replica set instance.

+
+

Restrictions

For details about restrictions on connecting to a DB instance, see Restrictions.

+
+

Prerequisites

  1. An ECS or a device that can access DDS is ready for use.
    • To connect to a DDS DB instance from an ECS, you need to create and log in to the ECS. For details, see How Can I Create and Log In to an ECS?
    • To connect to a DB instance through an EIP:
      1. Bind an EIP to a DB instance node. For details, see section Binding an EIP.
      2. Ensure that your local device can access the EIP that has been bound to the DB instance.
      +
    +
  2. A MongoDB client has been installed on the prepared ECS or the device.

    For details on how to install a MongoDB client, see How Can I Install a MongoDB Client?

    +
+
+

SSL Connection

  1. On the Instance Management page, click the target DB instance.
  2. In the navigation pane on the left, choose Connections.
  3. In the Basic Information area, click next to the SSL field to download the root certificate.
  4. Upload the root certificate to the ECS that connects to the DB instance or save the root certificate to a local device that can access DDS.

    The following describes how to upload the certificate to a Linux and Window ECS:

    +
    • In Linux, run the following command:
      scp <IDENTITY_FILE> <REMOTE_USER>@<REMOTE_ADDRESS>:<REMOTE_DIR>
      • IDENTITY_FILE indicates the directory where the root certificate locates. The file access permission is 600.
      • REMOTE_USER indicates the ECS OS user.
      • REMOTE_ADDRESS indicates the ECS address.
      • REMOTE_DIR indicates the directory of the ECS to which the root certificate is uploaded.
      +
      +
      +
    • In Windows, upload the root certificate using file transfer tools.
    +

  5. Connect to a DDS DB instance.

    The Linux OS is used as an example.

    +

    ./mongo --host <DB_HOST> --port <DB_PORT> -u <DB_USER> -p --authenticationDatabase admin --ssl --sslCAFile <FILE_PATH> --sslAllowInvalidHostnames

    +

    Enter the database account password when prompted:

    +
    Enter password:
    +
    • A replica set instance uses the management IP address to generate SSL certificate. --sslAllowInvalidHostnames is needed for the SSL connection.
    • DB_HOST indicates the IP address of the remotely connected DB instance. Obtain the value from the Private IP Address column in the node list on the Connections page. If a device can access the DB instance through an EIP, set this parameter to the EIP displayed in EIP column in the node list on the Connections page.
    • DB_PORT indicates the port number. Obtain the value from Database Port in the Basic Information area on the Connections page.
    • DB_USER indicates the database account name. The default value is rwuser.
    • FILE_PATH indicates the path where the root certificate is stored.
    +
    +

    Example:

    +

    ./mongo --host 192.168.1.6 --port 8635 -u rwuser -p --authenticationDatabase admin --ssl --sslCAFile /tmp/ca.crt --sslAllowInvalidHostnames

    +

  6. Check the connection result. If the following information is displayed, the connection is successful.

    • Result from connecting the primary node in a replica set:
      replica:PRIMARY>
      +
    • Result from connecting the secondary node in a replica set:
      replica:SECONDARY>
      +
    +

+
+

Common Connection

To use the common connection mode, you need to disable the SSL connection. For details, see section Disabling SSL.

+
+
  1. Log in to the prepared ECS or the device that can access the document database.
  2. Connect to a DDS DB instance.

    ./mongo --host <DB_HOST> --port <DB_PORT> -u <DB_USER> -p --authenticationDatabase admin

    +

    Enter the database account password when prompted:

    +
    Enter password:
    +
    • DB_HOST indicates the IP address of the remotely connected DB instance. Obtain the value from the Private IP Address column in the node list on the Connections page. If a device can access the DB instance through an EIP, set this parameter to the EIP displayed in EIP column in the node list on the Connections page.
    • DB_PORT indicates the port number. Obtain the value from Database Port in the Basic Information area on the Connections page.
    • DB_USER indicates the database account name. The default value is rwuser.
    +
    +

    Example:

    +

    ./mongo --host 192.168.1.6 --port 8635 -u rwuser -p --authenticationDatabase admin

    +

  3. Check the connection result. If the following information is displayed, the connection is successful.

    • Result from connecting the primary node in a replica set:
      replica:PRIMARY>
      +
    • Result from connecting the secondary node in a replica set:
      replica:SECONDARY>
      +
    +

+
+
+
+
+
Parent topic: Connecting to a Replica Set Instance
+
+
+ diff --git a/docs/dds/umn/en-us_topic_backup_download.html b/docs/dds/umn/en-us_topic_backup_download.html new file mode 100644 index 000000000..98a061a7f --- /dev/null +++ b/docs/dds/umn/en-us_topic_backup_download.html @@ -0,0 +1,21 @@ + + +

Downloading Backup Files

+

Scenarios

This section describes how to download manual or automated backup files for local data backup or restoration.

+
+

Procedure

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Backup Management.
  3. On the Backup Management page, click the Clusters or Replica Sets tab, locate the available backup you want to download and click Download in the Operation column.
  4. Download OBS Browser and install it.
  5. Log in to the OBS Browser.

    For details on how to log in to OBS Browser, see section Logging In to OBS Browser in the Object Storage Service User Guide.

    +

  6. Disable certificate verification on OBS Browser.

    For details on how to configure OBS Browser, see section Configuring the System in the Object Storage Service User Guide.

    +

    The OBS bucket names displayed on the Download Backup File page on the DDS console do not support certificate verification. Therefore, you need to disable OBS Browser certificate verification before adding external buckets and enable it after the backup files are downloaded.

    +
    +

  7. Add an external bucket.

    In the Create Bucket dialog box of OBS Browser, select Add external bucket and enter the bucket name displayed on Download Backup File of the DDS console.

    +

    For details about how to add external buckets, see section Adding External Buckets in the Object Storage Service User Guide.

    +

  8. Download the backup files.

    In the search box on the right of OBS Browser, enter the backup file name displayed on Download Backup File of the DDS console.

    +

  9. After the backup file is downloaded, enable OBS Browser certificate verification.
+
+
+
+
+
Parent topic: Backup and Restore
+
+
+ diff --git a/docs/dds/umn/en-us_topic_backup_restore.html b/docs/dds/umn/en-us_topic_backup_restore.html new file mode 100644 index 000000000..3f218e99a --- /dev/null +++ b/docs/dds/umn/en-us_topic_backup_restore.html @@ -0,0 +1,29 @@ + + +

Setting Automated Backup Policy

+

Scenarios

DDS backs up data automatically based on the automated backup policy you set. You are advised to regularly back up data in your database. If the database becomes faulty or data is damaged, you can restore it with the backup, ensuring data reliability.

+
  • DDS checks existing automated backup files. If the retention period of a file exceeds the backup retention period you set, DDS will delete the file.
  • After the backup policy is modified, an automated backup will be triggered based on the new backup policy. The retention period of the previously generated automated backups remains unchanged.
+
+
+ +

Enabling or Modifying an Automated Backup Policy

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the navigation pane on the left, click Backups & Restorations.
  4. On the Backups & Restorations page, click Modify Backup Policy. If you want to enable the automated backup policy, click .

    Retention period refers to the number of days that data is kept. You can increase the retention period to improve data reliability.

    +

    The backup retention period can range from 1 to 732 days, with a time window of one hour. The backup cycle varies according to the retention period you have set.

    +
    • If you set the retention period to 1 to 6 days, data is automatically backed up each day of the week.
    • If you set the retention period to 7 to 732 days, you must select at least one day of the week for the backup cycle.
    +

  5. Click OK to save the modification.
  6. View the backup result.

    • If the automated backup policy is enabled, an automated full backup is immediately triggered. The time it takes to complete the backup depends on the size of the job.
    • If the automated backup policy is modified, an automated full backup is randomly triggered during the time window you set. The time it takes to complete the backup depends on the size of the job.
    • During the creation of an automated backup, you can query the backup status on the Backup Management page or the Backups & Restorations tab. The backup status is Backing up.
    • In the upper right corner of the backup list, click to refresh the list. The backup status changes to Complete. The backup type is Automated and the backup method is Physical.
    +

+
+

Disabling an Automated Backup Policy

Observe the following constraints when disabling the automated backup policy:

+
  • Your data cannot be backed up.
  • If you choose to delete all the existing automated backup when disabling the automated backup policy, related restoration or download operations will fail.
+
+
  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the navigation pane on the left, click Backups & Restorations.
  4. On the Backups & Restorations page, click Modify Backup Policy. On the displayed page, click to disable the automated backup policy.

    You can determine whether to delete all automated backup files:

    +
    • If you do not select Delete automated backups, all backup files within the retention period will be retained. You can manually delete them. For details, see section Deleting an Automated Backup.
    • If you select Delete automated backups, all backup files within the retention period will be deleted.
    +

  5. Click OK.
+
+
+
+
+
Parent topic: Backup and Restore
+
+
+ diff --git a/docs/dds/umn/en-us_topic_change_database_port.html b/docs/dds/umn/en-us_topic_change_database_port.html new file mode 100644 index 000000000..6d7d62550 --- /dev/null +++ b/docs/dds/umn/en-us_topic_change_database_port.html @@ -0,0 +1,17 @@ + + +

Changing the Database Port

+

Scenarios

This section guides you on how to modify the database port to ensure system security. The database port cannot be changed when the instance is in any of the following statuses:

+ +
+

Procedure

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the navigation pane on the left, choose Connections.
  4. In the Basic Information area, click to right of the Database Port field to modify the database port.

    The database port range is 2100 to 9500.

    +
    • If you want to submit the change, click . This process takes about 1 to 5 minutes.
    • If you want to cancel the change, click .
    +

  5. View the modification result.
+
+
+
+
+
Parent topic: Security
+
+
+ diff --git a/docs/dds/umn/en-us_topic_change_security_group.html b/docs/dds/umn/en-us_topic_change_security_group.html new file mode 100644 index 000000000..2c59905cd --- /dev/null +++ b/docs/dds/umn/en-us_topic_change_security_group.html @@ -0,0 +1,16 @@ + + +

Changing a Security Group

+

Scenarios

This section guides you on how to change the security group of a DB instance. If any of the following operations is in progress, do not change the security group:

+ +
+

Procedure

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the navigation pane on the left, choose Connections.
  4. In the Security Group area, click to select the security group to which the DB instance belongs.

    • If you want to submit the change, click . This process takes about 1 to 3 minutes.
    • If you want to cancel the change, click .
    +

  5. View the modification result.
+
+
+
+
+
Parent topic: Security
+
+
+ diff --git a/docs/dds/umn/en-us_topic_configuration.html b/docs/dds/umn/en-us_topic_configuration.html new file mode 100644 index 000000000..155b71263 --- /dev/null +++ b/docs/dds/umn/en-us_topic_configuration.html @@ -0,0 +1,23 @@ + + +

Editing a Parameter Group

+

Scenarios

This section guides you on how to edit parameters in the parameter groups that you have created to meet your service requirements and achieve optimal performance.

+
+

Default parameter groups are unchangeable. You can only view them by clicking their names. If inappropriate settings of user-created parameter groups lead to a database reboot failure, you can refer to the settings of the default parameter groups to reset them.

+
+

Procedure

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Parameter Group Management.
  3. On the Parameter Group Management page, select the Clusters or Replica Sets tab and click the parameter group you created.
  4. Modify the required parameters.

    Related parameters are described as follows:

    +
    • For details on parameter descriptions, visit MongoDB official website.
    • The default value of the net.maxIncomingConnections parameter varies according to DB instance specifications. Therefore, this parameter is set to default before being specified.
    +

    Possible operations are as follows:

    +
    • If you want to save the modifications, click Save.
    • If you want to cancel the modifications, click Cancel.
    • If you want to preview the modifications, click Preview.
    +

    For details on the description of parameter group status, see section Database Status.

    +

    After modifying a parameter, you need to view the associated instance status in the instance list. If Pending restart is displayed, you need to restart the instance for the modification to take effect.

    +
    +

+
+
+
+
+
Parent topic: Parameter Group
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+
+ diff --git a/docs/dds/umn/en-us_topic_error_log.html b/docs/dds/umn/en-us_topic_error_log.html new file mode 100644 index 000000000..6db787b4d --- /dev/null +++ b/docs/dds/umn/en-us_topic_error_log.html @@ -0,0 +1,15 @@ + + +

Error Log

+

DDS log management allows you to view database-level logs, including warning- and error-level logs generated during database running, which help you analyze system problems.

+

Procedure

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the navigation pane on the left, click Error Logs.
  4. On the displayed page, click Error Logs. Then, view the log details.

    • Log records of different node types of a cluster instance in batches
      • If you select All nodes, the logs of all nodes in the cluster instance are displayed.
      • If you select All mongos, the logs of all mongos in the cluster instance are displayed.
      • If you select All shards, the logs of all shards in the cluster instance are displayed.
      • If you select All configs, the logs of all configs in the cluster instance are displayed.
      +
    • Log records of all nodes of a replica set instance
    • Log records of a node in different time periods
    • Time, levels, and descriptions of the logs
    +

+
+
+
+
+
Parent topic: Monitoring
+
+
+ diff --git a/docs/dds/umn/en-us_topic_increase_nodes.html b/docs/dds/umn/en-us_topic_increase_nodes.html new file mode 100644 index 000000000..4297ebe32 --- /dev/null +++ b/docs/dds/umn/en-us_topic_increase_nodes.html @@ -0,0 +1,22 @@ + + +

Adding Cluster Instance Nodes

+

Scenarios

This section guides you on how to add nodes to a DB instance.

+
+
  • You can add nodes when the instance status is Available, Deleting backup, or Checking restoration.
  • A DB instance cannot be deleted when one or more nodes are being added.
+
+

Add mongos

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target cluster instance.
  3. On the mongos tab in the Node Information area, click Add mongos.
  4. On the displayed page, specify Node Class, mongos Quantity, and Parameter Group. Then, click Submit.

    A cluster instance of Community Edition supports a maximum of 16 mongos nodes.

    +

  5. View the result of adding nodes.

    • This process takes about 10 to 15 minutes. The status of the DB instance in the instance list is Adding node.
    • In the upper right corner of the DB instance list, click to refresh the list. The instance status changes to Available.
    • On the mongos tab in the Node Information area, view the information about the node you added.
    • If the mongos fail to be added, you can revert them in batches or delete them one by one. For details, see section Reverting Cluster Instance Nodes.
    +

+
+

Add shard

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target cluster instance.
  3. On the shard tab in the Node Information area, click Add shard.
  4. On the displayed page, specify Node Class, Storage Space, shard Quantity, and Parameter Group. Then, click Submit.

    • The storage space you applied for will contain the system overhead required for inode, reserved block, and database operation. The storage space must be an integer multiple of 10.
    • A cluster instance of Community Edition supports a maximum of 16 shard nodes.
    +

  5. View the result of adding nodes.

    • This process takes about 10 to 15 minutes. The status of the DB instance in the instance list is Adding node.
    • In the upper right corner of the DB instance list, click to refresh the list. The instance status changes to Available.
    • On the shard tab in the Node Information area, view the information about the node you added.
    • If the shards fail to be added, you can revert them in batches or delete them one by one. For details, see section Reverting Cluster Instance Nodes.
    +

+
+
+
+
+
Parent topic: Storage
+
+
+ diff --git a/docs/dds/umn/en-us_topic_increase_storage.html b/docs/dds/umn/en-us_topic_increase_storage.html new file mode 100644 index 000000000..52f6fd845 --- /dev/null +++ b/docs/dds/umn/en-us_topic_increase_storage.html @@ -0,0 +1,22 @@ + + +

Scaling Up Storage Space

+

Scenarios

This section guides you on how to scale up the storage space of a DB instance to suit your service requirements.

+
+
  • You can scale up a DB instance a maximum of eight times.
  • You cannot scale up a DB instance in Creating, Changing instance class, Adding node, or Deleting node status.
  • You cannot scale down storage space.
  • If you scale up a DB instance with disks encrypted, the expanded storage space will be encrypted using the original encryption key.
  • You cannot scale up the storage space of a config for the cluster instances.
+
+

Cluster

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target cluster instance.
  3. In the Node Information area on the Basic Information page, click the shard tab, locate the target shard, and click Scale Storage Space in the Operation column.
  4. On the displayed page, specify the desired storage space, and click Submit.

    You must add a minimum of 10 GB each time you scale up, and only multiples of 10 GB are allowed. The maximum amount of storage space is 1,000 GB.

    +

  5. Check the scaling-up result.

    • This process takes about 3 to 5 minutes. The status of the DB instance in the instance list is Scaling up.
    • In the upper right corner of the DB instance list, click to refresh the list. The instance status changes to Available.
    • In the Node Information area on the Basic Information page, click the shard tab and check whether the scaling up is successful.
    +

+
+

Replica Set

  1. Log in to the DDS console.
  2. On the Instance Management page, locate the target replica set instance and click Scale Storage Space in the Operation column.
  3. On the displayed page, specify the desired storage space, and click Submit.

    You must add a minimum of 10 GB each time you scale up, and only multiples of 10 GB are allowed. The maximum amount of storage space is 2,000 GB.

    +

  4. Check the scaling-up result.

    • This process takes about 3 to 5 minutes. The status of the DB instance in the instance list is Scaling up.
    • In the upper right corner of the DB instance list, click to refresh the list. The instance status changes to Available.
    • In the Storage Space area on the Basic Information page, check whether the scaling up is successful.
    +

+
+
+
+
+
Parent topic: Storage
+
+
+ diff --git a/docs/dds/umn/en-us_topic_introduction.html b/docs/dds/umn/en-us_topic_introduction.html new file mode 100644 index 000000000..c143527dd --- /dev/null +++ b/docs/dds/umn/en-us_topic_introduction.html @@ -0,0 +1,14 @@ + + +

What Is DDS?

+

Document Database Service (DDS) is compatible with MongoDB and is secure, highly available, reliable, scalable, and easy to use. It provides DB instance creation, scaling, redundancy, backup, restoration, monitoring, and alarm reporting functions with just a few clicks on the DDS console.

+

DDS has the following characteristics:

+ +

For details about the supported DB engines and versions, see Database Engine and Version.

+
+
+
+
Parent topic: Introduction
+
+
+ diff --git a/docs/dds/umn/en-us_topic_parameter_group.html b/docs/dds/umn/en-us_topic_parameter_group.html new file mode 100644 index 000000000..986807ad1 --- /dev/null +++ b/docs/dds/umn/en-us_topic_parameter_group.html @@ -0,0 +1,20 @@ + + +

Creating a Parameter Group

+

Scenarios

DB parameter groups act as a container for engine configuration values that are applied to one or more DB instances. This section guides you on how to create a parameter group to manage your DB instance configurations.

+
+
  • DDS does not share parameter group quotas with RDS.
  • Each account can create up to 100 DDS parameter groups for the cluster and replica set instances to share.
+
+

Cluster

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Parameter Group Management.
  3. On the Parameter Group Management page, click Create Parameter Group.
  4. Select a DB engine version from the DB Engine Version drop-down list, Cluster for DB Instance Type, specify Node Type, Parameter Group Name, and Description, and then click OK.

    • Node Type: specifies the node type that this parameter group will apply to. For example, to create a parameter group applying to config, select config.
    • Parameter Group Name: specifies the parameter group name, which is a string of 1 to 64 characters composed of only letters (case-sensitive), digits, hyphens (-), underscores (_), and periods (.).
    • Description: contains a maximum of 256 characters and cannot contain the carriage return character and the following special characters: >!<"&'=
    +

  5. On the Parameter Group Management page, view and manage parameter groups on the Clusters tab.
+
+

Replica Set

  1. Log in to the DDS console.
  2. In the navigation pane on the left, click Parameter Group Management.
  3. On the Parameter Group Management page, click Create Parameter Group.
  4. Select a DB engine version from the DB Engine Version drop-down list, Replica set for DB Instance Type, specify Parameter Group Name and Description, and then click OK.

    • Parameter Group Name: specifies the parameter group name, which is a string of 1 to 64 characters composed of only letters (case-sensitive), digits, hyphens (-), underscores (_), and periods (.).
    • Description: contains a maximum of 256 characters and cannot contain the carriage return character and the following special characters: >!<"&'=
    +

  5. On the Parameter Group Management page, view and manage parameter groups on the Replica Sets tab.
+
+
+
+
+
Parent topic: Parameter Group
+
+
+ diff --git a/docs/dds/umn/en-us_topic_reset_password.html b/docs/dds/umn/en-us_topic_reset_password.html new file mode 100644 index 000000000..1dfc78d51 --- /dev/null +++ b/docs/dds/umn/en-us_topic_reset_password.html @@ -0,0 +1,19 @@ + + +

Resetting the Administrator Password

+

Scenarios

You are advised to change administrator passwords periodically to prevent password cracking, ensuring system security. You cannot reset the administrator password under the following circumstances:

+
+ +

Method 1

  1. Log in to the DDS console.
  2. On the Instance Management page, locate the target DB instance and choose More > Reset Password in the Operation column.
  3. Enter and confirm the new administrator password and click OK.

    The password is a string of 8 to 32 characters. It must be a combination of uppercase letters, lowercase letters, digits, and special characters. You can also use the following special characters: ~!@#%^*-_=+?

    +

+
+

Method 2

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the DB Information area on the Basic Information page, click Reset Password to the right of the Administrator field.
  4. Enter and confirm the new administrator password and click OK.

    The password is a string of 8 to 32 characters. It must be a combination of uppercase letters, lowercase letters, digits, and special characters. You can also use the following special characters: ~!@#%^*-_=+?

    +

+
+
+
+
+
Parent topic: Security
+
+
+ diff --git a/docs/dds/umn/en-us_topic_slow_query_log.html b/docs/dds/umn/en-us_topic_slow_query_log.html new file mode 100644 index 000000000..f9a0b3c67 --- /dev/null +++ b/docs/dds/umn/en-us_topic_slow_query_log.html @@ -0,0 +1,15 @@ + + +

Slow Query Log

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Slow query logs record statements whose execution period exceeds the value of slowms (100 ms by default), allowing you identify and optimize slowly executed statements.

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Procedure

  1. Log in to the DDS console.
  2. On the Instance Management page, click the target DB instance.
  3. In the navigation pane on the left, click Slow Query Logs.
  4. On the displayed page, click Slow Query Logs. Then, view the log details.

    • Log records of all shards of a cluster instance
    • Log records of all nodes of a replica set instance
    • Log records of a node in different time periods
    • Statements of the following level
      • All statement type
      • INSERT
      • QUERY
      • UPDATE
      • REMOVE
      • GETMORE
      • COMMAND
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Parent topic: Monitoring
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Introduction

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