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doc-exports/docs/css/umn/CLASS.TXT.json
2024-01-10 14:23:15 +00:00

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[
{
"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":"css",
"title":"Overview",
"uri":"css_01_0001.html",
"doc_type":"usermanual",
"p_code":"",
"code":"1"
},
{
"desc":"Cloud Search Service (CSS) is a fully hosted distributed search service based on Elasticsearch. You can use it for structured and unstructured data search, and use AI vec",
"product_code":"css",
"title":"What Is Cloud Search Service?",
"uri":"css_04_0001.html",
"doc_type":"usermanual",
"p_code":"1",
"code":"2"
},
{
"desc":"CSS has the following features and advantages.You can get insights from terabyte-scale data in milliseconds. In addition, you can use the visualized platform for data dis",
"product_code":"css",
"title":"Advantages",
"uri":"css_04_0010.html",
"doc_type":"usermanual",
"p_code":"1",
"code":"3"
},
{
"desc":"CSS supports Kibana and Cerebro.Kibana is an open-source data analytics and visualization platform that works with Elasticsearch. You can use Kibana to search for and vie",
"product_code":"css",
"title":"Product Components",
"uri":"css_04_0007.html",
"doc_type":"usermanual",
"p_code":"1",
"code":"4"
},
{
"desc":"CSS can be used to build search boxes for websites and apps to improve user experience. You can also build a log analysis platform with it, facilitating data-driven O&M a",
"product_code":"css",
"title":"Scenarios",
"uri":"css_04_0002.html",
"doc_type":"usermanual",
"p_code":"1",
"code":"5"
},
{
"desc":"If you need to assign different permissions to employees in your organization to access your CSS resources, IAM is a good choice for fine-grained permissions management. ",
"product_code":"css",
"title":"Permissions Management",
"uri":"css_04_0014.html",
"doc_type":"usermanual",
"p_code":"1",
"code":"6"
},
{
"desc":"The following table describes restrictions on clusters and nodes in CSS.You are advised to use the following browsers to access the CSS management console:Google Chrome 3",
"product_code":"css",
"title":"Constraints",
"uri":"css_04_0005.html",
"doc_type":"usermanual",
"p_code":"1",
"code":"7"
},
{
"desc":"CSS uses the following resources:InstanceCPUMemory (GB)Disk quantityDisk size (GB)",
"product_code":"css",
"title":"Quotas",
"uri":"css_04_0019.html",
"doc_type":"usermanual",
"p_code":"1",
"code":"8"
},
{
"desc":"Figure 1 shows the relationships between CSS and other services.",
"product_code":"css",
"title":"Related Services",
"uri":"css_04_0004.html",
"doc_type":"usermanual",
"p_code":"1",
"code":"9"
},
{
"desc":"CSS provides functions on a per cluster basis. A cluster represents an independent search service that consists of multiple nodes.An index stores Elasticsearch data. It i",
"product_code":"css",
"title":"Basic Concepts",
"uri":"css_04_0012.html",
"doc_type":"usermanual",
"p_code":"1",
"code":"10"
},
{
"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":"css",
"title":"Getting Started",
"uri":"css_01_0006.html",
"doc_type":"usermanual",
"p_code":"",
"code":"11"
},
{
"desc":"This section describes how to use Elasticsearch for product search. You can use the Elasticsearch search engine of CSS to search for data based on the scenario example. T",
"product_code":"css",
"title":"Getting Started with Elasticsearch",
"uri":"css_01_0007.html",
"doc_type":"usermanual",
"p_code":"11",
"code":"12"
},
{
"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":"css",
"title":"Permissions Management",
"uri":"css_01_0070.html",
"doc_type":"usermanual",
"p_code":"",
"code":"13"
},
{
"desc":"This section describes how to use a group to grant permissions to a user. Figure 1 shows the process for granting permissions.CSS has two types of user permissions: CSS a",
"product_code":"css",
"title":"Creating a User and Granting Permissions",
"uri":"css_01_0072.html",
"doc_type":"usermanual",
"p_code":"13",
"code":"14"
},
{
"desc":"Custom policies can be created to supplement the system-defined policies of CSS. For the actions supported for custom policies, see section \"Permissions Policies and Supp",
"product_code":"css",
"title":"CSS Custom Policies",
"uri":"css_01_0086.html",
"doc_type":"usermanual",
"p_code":"13",
"code":"15"
},
{
"desc":"On the Dashboard page of the CSS management console, you can view information about the status and storage capacity of existing clusters.",
"product_code":"css",
"title":"Viewing the Cluster Runtime Status and Storage Capacity Status",
"uri":"css_01_0053.html",
"doc_type":"usermanual",
"p_code":"",
"code":"16"
},
{
"desc":"The cluster list displays all CSS clusters. If there are a large number of clusters, these clusters will be displayed on multiple pages. You can view clusters of all stat",
"product_code":"css",
"title":"Cluster List Overview",
"uri":"css_01_0056.html",
"doc_type":"usermanual",
"p_code":"",
"code":"17"
},
{
"desc":"To prevent data loss and minimize the cluster downtime in case of service interruption, CSS supports cross-AZ cluster deployment. When creating a cluster, you can select ",
"product_code":"css",
"title":"Deploying a Cross-AZ Cluster",
"uri":"css_01_0188.html",
"doc_type":"usermanual",
"p_code":"",
"code":"18"
},
{
"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":"css",
"title":"Elasticsearch",
"uri":"css_01_0207.html",
"doc_type":"usermanual",
"p_code":"",
"code":"19"
},
{
"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":"css",
"title":"Managing Elasticsearch Clusters",
"uri":"css_01_0009.html",
"doc_type":"usermanual",
"p_code":"19",
"code":"20"
},
{
"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":"css",
"title":"Creating an Elasticsearch Cluster",
"uri":"css_01_0008.html",
"doc_type":"usermanual",
"p_code":"20",
"code":"21"
},
{
"desc":"When creating an Elasticsearch cluster, you can enable the security mode for it. Identity authentication is required when users access a security cluster. You can also au",
"product_code":"css",
"title":"Clusters in Security Mode",
"uri":"css_01_0189.html",
"doc_type":"usermanual",
"p_code":"21",
"code":"22"
},
{
"desc":"This section describes how to create an Elasticsearch cluster in security mode.Public IP address access and Kibana public access can be used only after security mode is e",
"product_code":"css",
"title":"Creating an Elasticsearch Cluster in Security Mode",
"uri":"css_01_0011.html",
"doc_type":"usermanual",
"p_code":"21",
"code":"23"
},
{
"desc":"This section describes how to create an Elasticsearch cluster in non-security mode.Log in to the CSS management console.On the Dashboard page, click Create Cluster in the",
"product_code":"css",
"title":"Creating an Elasticsearch Cluster in Non-Security Mode",
"uri":"css_01_0094.html",
"doc_type":"usermanual",
"p_code":"21",
"code":"24"
},
{
"desc":"On the Cluster Information page, you can view the information about a cluster, including the private network address, public IP address, version, and node.Log in to the C",
"product_code":"css",
"title":"Viewing Basic Information About an Elasticsearch Cluster",
"uri":"css_01_0185.html",
"doc_type":"usermanual",
"p_code":"20",
"code":"25"
},
{
"desc":"Tags are cluster identifiers. Adding tags to clusters can help you identify and manage your cluster resources.You can add tags to a cluster when creating the cluster or a",
"product_code":"css",
"title":"Managing Tags",
"uri":"css_01_0075.html",
"doc_type":"usermanual",
"p_code":"20",
"code":"26"
},
{
"desc":"You can create enterprise projects based on your organizational structure. Then you can manage resources across different regions by enterprise project, add users and use",
"product_code":"css",
"title":"Binding an Enterprise Project",
"uri":"css_01_0058.html",
"doc_type":"usermanual",
"p_code":"20",
"code":"27"
},
{
"desc":"If a cluster becomes faulty, you can restart it to check if it can run normally.The target cluster is not frozen and has no task in progress.If a cluster is available, en",
"product_code":"css",
"title":"Restarting a Cluster",
"uri":"css_01_0014.html",
"doc_type":"usermanual",
"p_code":"20",
"code":"28"
},
{
"desc":"You can delete clusters that you no longer need.If you delete a cluster, the cluster service data will be cleared. Exercise caution when performing this operation.The sna",
"product_code":"css",
"title":"Deleting a Cluster",
"uri":"css_01_0015.html",
"doc_type":"usermanual",
"p_code":"20",
"code":"29"
},
{
"desc":"In the Failed Tasks dialog box, you can view the failed tasks related to a cluster, such as failing to create, restart, scale out, back up, or restore a cluster. In addit",
"product_code":"css",
"title":"Managing Failed Tasks",
"uri":"css_01_0060.html",
"doc_type":"usermanual",
"p_code":"20",
"code":"30"
},
{
"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":"css",
"title":"Accessing an Elasticsearch Cluster",
"uri":"css_01_0210.html",
"doc_type":"usermanual",
"p_code":"19",
"code":"31"
},
{
"desc":"Elasticsearch clusters have built-in Kibana and Cerebro components. You can quickly access an Elasticsearch cluster through Kibana and Cerebro.Log in to the CSS managemen",
"product_code":"css",
"title":"Accessing an Elasticsearch Cluster",
"uri":"css_01_0190.html",
"doc_type":"usermanual",
"p_code":"31",
"code":"32"
},
{
"desc":"You can access a security cluster (Elasticsearch clusters in version 6.5.4 or later support the security mode) that has the HTTPS access enabled through the public IP add",
"product_code":"css",
"title":"Accessing a Cluster from a Public Network",
"uri":"css_01_0076.html",
"doc_type":"usermanual",
"p_code":"31",
"code":"33"
},
{
"desc":"If the VPC endpoint service is enabled, you can use a private domain name or node IP address generated by the endpoint to access the cluster. When the VPC endpoint servic",
"product_code":"css",
"title":"Accessing a Cluster Using a VPC Endpoint",
"uri":"css_01_0082.html",
"doc_type":"usermanual",
"p_code":"31",
"code":"34"
},
{
"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":"css",
"title":"(Optional) Interconnecting with a Dedicated Load Balancer",
"uri":"css_01_0184.html",
"doc_type":"usermanual",
"p_code":"31",
"code":"35"
},
{
"desc":"CSS integrates shared load balancers and allows you to bind public network access and enable the VPC Endpoint service. Dedicated load balancers provide more functions and",
"product_code":"css",
"title":"Scenario",
"uri":"css_01_0181.html",
"doc_type":"usermanual",
"p_code":"35",
"code":"36"
},
{
"desc":"This section describes how to connect a CSS cluster to a dedicated load balancer.If the target ELB listener uses the HTTP protocol, skip this step.Prepare and upload a se",
"product_code":"css",
"title":"Connecting to a Dedicated Load Balancer",
"uri":"css_01_0182.html",
"doc_type":"usermanual",
"p_code":"35",
"code":"37"
},
{
"desc":"This section provides the sample code for two-way authentication during the access to a cluster from a Java client.",
"product_code":"css",
"title":"Sample Code for Two-Way Authentication During the Access to a Cluster",
"uri":"css_01_0183.html",
"doc_type":"usermanual",
"p_code":"35",
"code":"38"
},
{
"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":"css",
"title":"Index Backup and Restoration",
"uri":"css_01_0269.html",
"doc_type":"usermanual",
"p_code":"19",
"code":"39"
},
{
"desc":"You can back up index data in clusters. If data loss occurs or you want to retrieve data of a specified duration, you can restore the index data. Index backup is implemen",
"product_code":"css",
"title":"Backup and Restoration Overview",
"uri":"css_01_0033.html",
"doc_type":"usermanual",
"p_code":"39",
"code":"40"
},
{
"desc":"Snapshots are automatically created at a specified time each day according to the rules you create. You can enable or disable the automatic snapshot creation function and",
"product_code":"css",
"title":"Managing Automatic Snapshot Creation",
"uri":"css_01_0267.html",
"doc_type":"usermanual",
"p_code":"39",
"code":"41"
},
{
"desc":"You can manually create a snapshot at any time to back up all data or data of specified indexes.To use the function of creating or restoring snapshots, the account or IAM",
"product_code":"css",
"title":"Manually Creating a Snapshot",
"uri":"css_01_0268.html",
"doc_type":"usermanual",
"p_code":"39",
"code":"42"
},
{
"desc":"You can use existing snapshots to restore the backup index data to a specified cluster.To use the function of creating or restoring snapshots, the account or IAM user log",
"product_code":"css",
"title":"Restoring Data",
"uri":"css_01_0266.html",
"doc_type":"usermanual",
"p_code":"39",
"code":"43"
},
{
"desc":"If you no longer need a snapshot, delete it to release storage resources. If the automatic snapshot creation function is enabled, snapshots that are automatically created",
"product_code":"css",
"title":"Deleting a Snapshot",
"uri":"css_01_0271.html",
"doc_type":"usermanual",
"p_code":"39",
"code":"44"
},
{
"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":"css",
"title":"Changing the Elasticsearch Cluster Form",
"uri":"css_01_0149.html",
"doc_type":"usermanual",
"p_code":"19",
"code":"45"
},
{
"desc":"You can scale in or out a cluster and change cluster specifications. In this way, you can improve cluster efficiency and reduce O&M costs.Scaling Out a ClusterIf a data n",
"product_code":"css",
"title":"Overview",
"uri":"css_01_0150.html",
"doc_type":"usermanual",
"p_code":"45",
"code":"46"
},
{
"desc":"If the workloads on the data plane of a cluster change, you can scale out the cluster by increasing the number or capacity of its nodes. Services are not interrupted duri",
"product_code":"css",
"title":"Scaling Out a Cluster",
"uri":"css_01_0151.html",
"doc_type":"usermanual",
"p_code":"45",
"code":"47"
},
{
"desc":"If the workloads on the data plane of a cluster change, you can change its node specifications as needed.The target cluster is available and has no tasks in progress.The ",
"product_code":"css",
"title":"Changing Specifications",
"uri":"css_01_0152.html",
"doc_type":"usermanual",
"p_code":"45",
"code":"48"
},
{
"desc":"If a cluster can process existing data without fully using its resources, you can scale in the cluster to reduce costs. Services are not interrupted during cluster scale-",
"product_code":"css",
"title":"Scaling in a Cluster",
"uri":"css_01_0153.html",
"doc_type":"usermanual",
"p_code":"45",
"code":"49"
},
{
"desc":"If a cluster can process existing data without fully using its nodes, you can remove one or more specified nodes from the cluster to reduce costs. Services will not be in",
"product_code":"css",
"title":"Removing Specified Nodes",
"uri":"css_01_0154.html",
"doc_type":"usermanual",
"p_code":"45",
"code":"50"
},
{
"desc":"If a node in the cluster is faulty, you can create a new node with the same specifications to replace it.The target cluster is available and has no tasks in progress.Only",
"product_code":"css",
"title":"Replacing a Specified Node",
"uri":"css_01_0156.html",
"doc_type":"usermanual",
"p_code":"45",
"code":"51"
},
{
"desc":"If workloads on the data plane of a cluster increase, you can add master or client nodes as needed. Services are not interrupted while they are added.The target cluster i",
"product_code":"css",
"title":"Adding Master/Client Nodes",
"uri":"css_01_0157.html",
"doc_type":"usermanual",
"p_code":"45",
"code":"52"
},
{
"desc":"After a cluster is created, its security mode can be changed using the following methods:Switching from the Non-Security Mode to Security ModeSwitching from the Security ",
"product_code":"css",
"title":"Changing the Security Mode",
"uri":"css_01_0158.html",
"doc_type":"usermanual",
"p_code":"45",
"code":"53"
},
{
"desc":"CSS supports cross-AZ deployment. You can add an AZ to obtain more resources or improve cluster availability, and can migrate your current AZ to one with higher specifica",
"product_code":"css",
"title":"Changing AZs",
"uri":"css_01_0201.html",
"doc_type":"usermanual",
"p_code":"45",
"code":"54"
},
{
"desc":"Same version upgrade and cross-version upgrade are supported. Same version upgrade is to upgrade the kernel patch of a cluster to fix problems or optimize performance. Cr",
"product_code":"css",
"title":"Upgrading Versions",
"uri":"css_01_0186.html",
"doc_type":"usermanual",
"p_code":"19",
"code":"55"
},
{
"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":"css",
"title":"Configuring an Elasticsearch Cluster",
"uri":"css_01_0211.html",
"doc_type":"usermanual",
"p_code":"19",
"code":"56"
},
{
"desc":"You can modify the elasticsearch.yml file.Log in to the CSS management console.Choose Clusters in the navigation pane. On the Clusters page, click the name of the target ",
"product_code":"css",
"title":"Configuring YML Parameters",
"uri":"css_01_0080.html",
"doc_type":"usermanual",
"p_code":"56",
"code":"57"
},
{
"desc":"CSS provides you with cold data nodes. You can store data that requires query response in seconds on high-performance nodes and store data that requires query response in",
"product_code":"css",
"title":"Hot and Cold Data Node Switchover",
"uri":"css_01_0079.html",
"doc_type":"usermanual",
"p_code":"56",
"code":"58"
},
{
"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":"css",
"title":"Managing Indexes",
"uri":"css_01_0091.html",
"doc_type":"usermanual",
"p_code":"56",
"code":"59"
},
{
"desc":"Clusters of version 7.6.2 or later support index status management. ISM is a plugin that allows you to automate periodic and administrative operations based on changes on",
"product_code":"css",
"title":"Creating and Managing Indexes",
"uri":"css_01_0093.html",
"doc_type":"usermanual",
"p_code":"59",
"code":"60"
},
{
"desc":"You can change any managed index policy. ISM has constraints to ensure that policy changes do not break indexes.If an index is stuck in its current status, never proceedi",
"product_code":"css",
"title":"Changing Policies",
"uri":"css_01_0092.html",
"doc_type":"usermanual",
"p_code":"59",
"code":"61"
},
{
"desc":"CSS provides log backup and search functions to help you locate faults. You can back up cluster logs to OBS buckets and download required log files to analyze and locate ",
"product_code":"css",
"title":"Managing Logs",
"uri":"css_01_0077.html",
"doc_type":"usermanual",
"p_code":"19",
"code":"62"
},
{
"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":"css",
"title":"Managing Plugins",
"uri":"css_01_0212.html",
"doc_type":"usermanual",
"p_code":"19",
"code":"63"
},
{
"desc":"CSS clusters have default plugins. You can view the default plugin information on the console or Kibana.Log in to the CSS management console.In the navigation pane, choos",
"product_code":"css",
"title":"Viewing the Default Plugin List",
"uri":"css_01_0078.html",
"doc_type":"usermanual",
"p_code":"63",
"code":"64"
},
{
"desc":"For Elasticsearch 6.5.4 and later versions, Open Distro for Elasticsearch SQL lets you write queries in SQL rather than in the Elasticsearch query domain-specific languag",
"product_code":"css",
"title":"Using the Open Distro SQL Plugin",
"uri":"css_01_0061.html",
"doc_type":"usermanual",
"p_code":"63",
"code":"65"
},
{
"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":"css",
"title":"Kibana Platform",
"uri":"css_01_0107.html",
"doc_type":"usermanual",
"p_code":"19",
"code":"66"
},
{
"desc":"You can customize the username, role name, and tenant name in Kibana.",
"product_code":"css",
"title":"Kibana Usage Restrictions",
"uri":"css_01_0125.html",
"doc_type":"usermanual",
"p_code":"66",
"code":"67"
},
{
"desc":"After creating a CSS cluster, you can log in to Kibana through the console or public network.Logging in to the consoleLog in to the CSS management console.On the Clusters",
"product_code":"css",
"title":"Logging In to Kibana",
"uri":"css_01_0108.html",
"doc_type":"usermanual",
"p_code":"66",
"code":"68"
},
{
"desc":"For CSS clusters that have security mode enabled, you can enable Kibana public access. After the configuration is complete, an IP address will be provided to access Kiban",
"product_code":"css",
"title":"Accessing a Cluster from a Kibana Public Network",
"uri":"css_01_0088.html",
"doc_type":"usermanual",
"p_code":"66",
"code":"69"
},
{
"desc":"CSS uses the opendistro_security plug-in to provide security cluster capabilities. The opendistro_security plug-in is built based on the RBAC model. RBAC involves three c",
"product_code":"css",
"title":"Creating a User and Granting Permissions by Using Kibana",
"uri":"css_01_0109.html",
"doc_type":"usermanual",
"p_code":"66",
"code":"70"
},
{
"desc":"To interconnect user-built Kibana with CSS Elasticsearch clusters, the following conditions must be met:The local environment must support access from external networks.K",
"product_code":"css",
"title":"Connecting User-Built Kibana to an Elasticsearch Cluster",
"uri":"css_02_0097.html",
"doc_type":"usermanual",
"p_code":"66",
"code":"71"
},
{
"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":"css",
"title":"Enhanced Cluster Features",
"uri":"css_01_0111.html",
"doc_type":"usermanual",
"p_code":"19",
"code":"72"
},
{
"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":"css",
"title":"Vector Retrieval",
"uri":"css_01_0117.html",
"doc_type":"usermanual",
"p_code":"72",
"code":"73"
},
{
"desc":"Image recognition and retrieval, video search, and personalized recommendation impose high requirements on the latency and accuracy of high-dimensional space vector retri",
"product_code":"css",
"title":"Description",
"uri":"css_01_0118.html",
"doc_type":"usermanual",
"p_code":"73",
"code":"74"
},
{
"desc":"Off-heap memory is used for index construction and query in vector retrieval. Therefore, the required cluster capacity is related to the index type and off-heap memory si",
"product_code":"css",
"title":"Cluster Planning for Vector Retrieval",
"uri":"css_01_0122.html",
"doc_type":"usermanual",
"p_code":"73",
"code":"75"
},
{
"desc":"A cluster of version 7.6.2 or 7.10.2 has been created by referring to Cluster Planning for Vector Retrieval.Cluster advanced settings have been configured as required by ",
"product_code":"css",
"title":"Creating a Vector Index",
"uri":"css_01_0121.html",
"doc_type":"usermanual",
"p_code":"73",
"code":"76"
},
{
"desc":"Standard vector query syntax is provided for vector fields with vector indexes. The following command will return n (specified by size/topk) data records that are most cl",
"product_code":"css",
"title":"Querying Vectors",
"uri":"css_01_0123.html",
"doc_type":"usermanual",
"p_code":"73",
"code":"77"
},
{
"desc":"To reduce the cost of backup, disable the backup function before data import and enable it afterwards.Set refresh_interval to 120s or a larger value. Larger segments can ",
"product_code":"css",
"title":"Optimizing the Performance of Vector Retrieval",
"uri":"css_01_0126.html",
"doc_type":"usermanual",
"p_code":"73",
"code":"78"
},
{
"desc":"When you perform operations in Creating a Vector Index, if IVF_GRAPH and IVF_GRAPH_PQ index algorithms are selected, you need to pre-build and register the center point v",
"product_code":"css",
"title":"(Optional) Pre-Building and Registering a Center Point Vector",
"uri":"css_01_0124.html",
"doc_type":"usermanual",
"p_code":"73",
"code":"79"
},
{
"desc":"The vector retrieval engine is developed in C++ and uses off-heap memory. You can use the following APIs to manage the index cache.View cache statistics.GET /_vector/stat",
"product_code":"css",
"title":"Managing the Vector Index Cache",
"uri":"css_01_0130.html",
"doc_type":"usermanual",
"p_code":"73",
"code":"80"
},
{
"desc":"Elasticsearch provides standard REST APIs and clients developed using Java, Python, and Go.Based on the open-source dataset SIFT1M (http://corpus-texmex.irisa.fr/) and Py",
"product_code":"css",
"title":"Sample Code for Vector Search on a Client",
"uri":"css_01_0129.html",
"doc_type":"usermanual",
"p_code":"73",
"code":"81"
},
{
"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":"css",
"title":"Storage-Compute Decoupling",
"uri":"css_01_0112.html",
"doc_type":"usermanual",
"p_code":"72",
"code":"82"
},
{
"desc":"You can store hot data on SSD to achieve the optimal query performance, and store historical data in OBS to reduce data storage costs.A large volume of data is written to",
"product_code":"css",
"title":"Context",
"uri":"css_01_0113.html",
"doc_type":"usermanual",
"p_code":"82",
"code":"83"
},
{
"desc":"Before freezing an index, ensure no data is being written to it. The index will be set to read only before being frozen, and data write will fail.After an index is frozen",
"product_code":"css",
"title":"Freezing an Index",
"uri":"css_01_0114.html",
"doc_type":"usermanual",
"p_code":"82",
"code":"84"
},
{
"desc":"After data is dumped to OBS, some data is cached to reduce access to OBS and improve Elasticsearch query performance. Data that is requested for the first time is obtaine",
"product_code":"css",
"title":"Configuring Cache",
"uri":"css_01_0116.html",
"doc_type":"usermanual",
"p_code":"82",
"code":"85"
},
{
"desc":"When you query data on the Discover page of Kibana for the first time, all data needs to be obtained from OBS because there is no cache. If a large number of documents ar",
"product_code":"css",
"title":"Enhanced Cold Data Query Performance",
"uri":"css_01_0187.html",
"doc_type":"usermanual",
"p_code":"82",
"code":"86"
},
{
"desc":"To clearly display the operations of the storage and compute decoupling plugin in OBS, the real-time OBS rate metric is added to CSS and recorded in the system index.This",
"product_code":"css",
"title":"Monitoring OBS Operations",
"uri":"css_01_0202.html",
"doc_type":"usermanual",
"p_code":"82",
"code":"87"
},
{
"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":"css",
"title":"Enhanced Import Performance",
"uri":"css_01_0227.html",
"doc_type":"usermanual",
"p_code":"72",
"code":"88"
},
{
"desc":"CSS provides enhanced data import function. It optimizes bulk route, and speeds up processing through indexes and word segmentation, improving import performance and redu",
"product_code":"css",
"title":"Context",
"uri":"css_01_0228.html",
"doc_type":"usermanual",
"p_code":"88",
"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":"css",
"title":"Instructions",
"uri":"css_01_0229.html",
"doc_type":"usermanual",
"p_code":"88",
"code":"90"
},
{
"desc":"According to the default routing rule of Elasticsearch, data in a bulk request is routed to different shards. When massive data is written and a large number of index sha",
"product_code":"css",
"title":"Bulk Route Optimization",
"uri":"css_01_0230.html",
"doc_type":"usermanual",
"p_code":"90",
"code":"91"
},
{
"desc":"You can specify the index.aggr_perf_batch_size configuration item to enable or disable batch import optimization. After the batch import function is enabled, documents in",
"product_code":"css",
"title":"Bulk Aggregation Optimization",
"uri":"css_01_0231.html",
"doc_type":"usermanual",
"p_code":"90",
"code":"92"
},
{
"desc":"You can configure index.native_speed_up to enable or disable text index acceleration. This function optimizes the index process and memory usage to accelerate index build",
"product_code":"css",
"title":"Text Index Acceleration",
"uri":"css_01_0232.html",
"doc_type":"usermanual",
"p_code":"90",
"code":"93"
},
{
"desc":"After the import optimization function is enabled, the number of index merge tasks will increase. You can configure the following parameters to reduce the impact of merge",
"product_code":"css",
"title":"Optimization of Other Parameters",
"uri":"css_01_0233.html",
"doc_type":"usermanual",
"p_code":"90",
"code":"94"
},
{
"desc":"Test environmentCluster: 3 M6 ECSs (8 vCPUs | 64 GB memory)Data: open-source web server access logs and internal service dataset (dns_logs)Configuration: 120 shards, no r",
"product_code":"css",
"title":"Performance Data",
"uri":"css_01_0234.html",
"doc_type":"usermanual",
"p_code":"88",
"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":"css",
"title":"Flow Control",
"uri":"css_01_0200.html",
"doc_type":"usermanual",
"p_code":"72",
"code":"96"
},
{
"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":"css",
"title":"Flow Control 2.0",
"uri":"css_01_0191.html",
"doc_type":"usermanual",
"p_code":"96",
"code":"97"
},
{
"desc":"CSS can control traffic at the node level. You can configure the blacklist and whitelist, the maximum concurrent HTTP connections, and the maximum HTTP connections for a ",
"product_code":"css",
"title":"Context",
"uri":"css_01_0192.html",
"doc_type":"usermanual",
"p_code":"97",
"code":"98"
},
{
"desc":"You can run commands in Kibana to enable or disable HTTP/HTTPS flow control for your cluster. The command parameters are as follows.Log in to the CSS management console.C",
"product_code":"css",
"title":"HTTP/HTTPS Flow Control",
"uri":"css_01_0193.html",
"doc_type":"usermanual",
"p_code":"97",
"code":"99"
},
{
"desc":"Elasticsearch provides a circuit breaker, which will terminate requests or return the error code 429 if the memory usage exceeds its threshold. However, the circuit break",
"product_code":"css",
"title":"Memory Flow Control",
"uri":"css_01_0194.html",
"doc_type":"usermanual",
"p_code":"97",
"code":"100"
},
{
"desc":"Request sampling can record the access of client IP addresses and the type of requests from the client. Based on the statistics, you can identify the access traffic of cl",
"product_code":"css",
"title":"Request Sampling",
"uri":"css_01_0195.html",
"doc_type":"usermanual",
"p_code":"97",
"code":"101"
},
{
"desc":"You can block all connections in one click, except the connections that passes through O&M APIs, to handle unexpected traffic burst and quickly recover your cluster.Log i",
"product_code":"css",
"title":"One-click Traffic Blocking",
"uri":"css_01_0196.html",
"doc_type":"usermanual",
"p_code":"97",
"code":"102"
},
{
"desc":"Flow control can be implemented via an independent API.Log in to the CSS management console.Choose Clusters in the navigation pane. On the Clusters page, locate the targe",
"product_code":"css",
"title":"Access Statistics and Traffic Control Information Query",
"uri":"css_01_0198.html",
"doc_type":"usermanual",
"p_code":"97",
"code":"103"
},
{
"desc":"You can check access logs in either of the following ways:Enable and check access logs via an independent API. Configure the API parameters to record the access log time ",
"product_code":"css",
"title":"Temporary Access Statistics Logs",
"uri":"css_01_0199.html",
"doc_type":"usermanual",
"p_code":"97",
"code":"104"
},
{
"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":"css",
"title":"Flow Control 1.0",
"uri":"css_01_0139.html",
"doc_type":"usermanual",
"p_code":"96",
"code":"105"
},
{
"desc":"CSS can control traffic at the node level. You can configure the blacklist and whitelist, the maximum concurrent HTTP connections, and the maximum HTTP connections for a ",
"product_code":"css",
"title":"Context",
"uri":"css_01_0140.html",
"doc_type":"usermanual",
"p_code":"105",
"code":"106"
},
{
"desc":"You can run commands in Kibana to enable or disable HTTP/HTTPS flow control for your cluster. The command parameters are as follows.Log in to the CSS management console.C",
"product_code":"css",
"title":"HTTP/HTTPS Flow Control",
"uri":"css_01_0141.html",
"doc_type":"usermanual",
"p_code":"105",
"code":"107"
},
{
"desc":"Elasticsearch provides a circuit breaker, which will terminate requests if the memory usage exceeds its threshold. However, Elasticsearch does not check the heap memory u",
"product_code":"css",
"title":"Memory Flow Control",
"uri":"css_01_0142.html",
"doc_type":"usermanual",
"p_code":"105",
"code":"108"
},
{
"desc":"The following table describes the global path whitelist parameters for flow control.Log in to the CSS management console.Choose Clusters in the navigation pane. On the Cl",
"product_code":"css",
"title":"Global Path Whitelist for Flow Control",
"uri":"css_01_0143.html",
"doc_type":"usermanual",
"p_code":"105",
"code":"109"
},
{
"desc":"Request sampling can record the access IP addresses, the number of accessed nodes, request paths, request URLs, and request bodies, which can be used to obtain the IP add",
"product_code":"css",
"title":"Request Sampling",
"uri":"css_01_0144.html",
"doc_type":"usermanual",
"p_code":"105",
"code":"110"
},
{
"desc":"Flow control can be implemented via an independent API.Log in to the CSS management console.Choose Clusters in the navigation pane. On the Clusters page, locate the targe",
"product_code":"css",
"title":"Flow Control",
"uri":"css_01_0145.html",
"doc_type":"usermanual",
"p_code":"105",
"code":"111"
},
{
"desc":"You can check access logs in either of the following ways:Enable and check access logs via an independent API. Configure the API parameters to record the access log time ",
"product_code":"css",
"title":"Access Logs",
"uri":"css_01_0146.html",
"doc_type":"usermanual",
"p_code":"105",
"code":"112"
},
{
"desc":"CPU flow control can be implemented based on the CPU usage of a node.You can configure the CPU usage threshold of a node to prevent the node from breaking down due to hea",
"product_code":"css",
"title":"CPU Flow Control",
"uri":"css_01_0147.html",
"doc_type":"usermanual",
"p_code":"105",
"code":"113"
},
{
"desc":"You can block all traffic in one click, except the traffic that passes through O&M APIs, to handle unexpected traffic burst and quickly recover your cluster.Log in to the",
"product_code":"css",
"title":"One-click Traffic Blocking",
"uri":"css_01_0148.html",
"doc_type":"usermanual",
"p_code":"105",
"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":"css",
"title":"Large Query Isolation",
"uri":"css_01_0131.html",
"doc_type":"usermanual",
"p_code":"72",
"code":"115"
},
{
"desc":"The large query isolation feature allows you to separately manage large queries. You can isolate query requests that consume a large amount of memory or take a long perio",
"product_code":"css",
"title":"Context",
"uri":"css_01_0132.html",
"doc_type":"usermanual",
"p_code":"115",
"code":"116"
},
{
"desc":"The large query isolation and global timeout features are disabled by default. If you enable them, the configuration will take effect immediately. Perform the following s",
"product_code":"css",
"title":"Procedure",
"uri":"css_01_0133.html",
"doc_type":"usermanual",
"p_code":"115",
"code":"117"
},
{
"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":"css",
"title":"Index Monitoring",
"uri":"css_01_0134.html",
"doc_type":"usermanual",
"p_code":"72",
"code":"118"
},
{
"desc":"CSS monitors various metrics of the running status and change trend of cluster indexes to measure service usage and handle potential risks in a timely manner, ensuring th",
"product_code":"css",
"title":"Context",
"uri":"css_01_0135.html",
"doc_type":"usermanual",
"p_code":"118",
"code":"119"
},
{
"desc":"Log in to the CSS management console.Choose Clusters in the navigation pane. On the Clusters page, locate the target cluster and click Access Kibana in the Operation colu",
"product_code":"css",
"title":"Enabling Index Monitoring",
"uri":"css_01_0136.html",
"doc_type":"usermanual",
"p_code":"118",
"code":"120"
},
{
"desc":"You can call an API to query the index read and write traffic within a period of time.A cluster has been created and index monitoring has been enabled.Log in to the CSS m",
"product_code":"css",
"title":"Checking the Index Read and Write Traffic",
"uri":"css_01_0137.html",
"doc_type":"usermanual",
"p_code":"118",
"code":"121"
},
{
"desc":"You can check preconfigured index monitoring visualizations on the Dashboard and Visualizations pages of Kibana. You can also customize tables and charts.A cluster has be",
"product_code":"css",
"title":"Checking Index Monitoring Information",
"uri":"css_01_0138.html",
"doc_type":"usermanual",
"p_code":"118",
"code":"122"
},
{
"desc":"The configuration file content of kibana-monitor is as follows. You are advised to save the file as monitoring-kibana.ndjson.",
"product_code":"css",
"title":"kibana-monitor",
"uri":"css_01_0197.html",
"doc_type":"usermanual",
"p_code":"118",
"code":"123"
},
{
"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":"css",
"title":"Enhanced Cluster Monitoring",
"uri":"css_01_0177.html",
"doc_type":"usermanual",
"p_code":"72",
"code":"124"
},
{
"desc":"The Elasticsearch community only discusses how to monitor the average latency of search requests, which cannot reflect the actual search performance of a cluster. To enha",
"product_code":"css",
"title":"P99 Latency Monitoring",
"uri":"css_01_0178.html",
"doc_type":"usermanual",
"p_code":"124",
"code":"125"
},
{
"desc":"When an external system accesses Elasticsearch through the HTTP protocol, a response and the corresponding status code are returned. The open-source Elasticsearch server ",
"product_code":"css",
"title":"HTTP Status Code Monitoring",
"uri":"css_01_0179.html",
"doc_type":"usermanual",
"p_code":"124",
"code":"126"
},
{
"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":"css",
"title":"Enhanced Aggregation",
"uri":"css_01_0172.html",
"doc_type":"usermanual",
"p_code":"72",
"code":"127"
},
{
"desc":"The enhanced aggregation is an optimization feature for service awareness. With this feature, you can optimize the aggregation analysis capability of observable services.",
"product_code":"css",
"title":"Features",
"uri":"css_01_0173.html",
"doc_type":"usermanual",
"p_code":"127",
"code":"128"
},
{
"desc":"Low-cardinality fields have high data clustering performance when being sorted, which facilitates vectorized optimization. Assume that the following query statement exist",
"product_code":"css",
"title":"Grouping and Aggregation of Low-cardinality Fields",
"uri":"css_01_0174.html",
"doc_type":"usermanual",
"p_code":"127",
"code":"129"
},
{
"desc":"High-cardinality fields are usually used for histogram grouping and aggregation instead of single-point grouping and aggregation. For example, collecting the statistics o",
"product_code":"css",
"title":"High-cardinality Field Histogram Aggregation",
"uri":"css_01_0175.html",
"doc_type":"usermanual",
"p_code":"127",
"code":"130"
},
{
"desc":"In the scenario where low-cardinality and high-cardinality fields are mixed, assume that the following query statement exists:Group the low-cardinality fields and create ",
"product_code":"css",
"title":"Low-cardinality and High-cardinality Field Mixing",
"uri":"css_01_0176.html",
"doc_type":"usermanual",
"p_code":"127",
"code":"131"
},
{
"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":"css",
"title":"Read/Write Splitting",
"uri":"css_01_0161.html",
"doc_type":"usermanual",
"p_code":"72",
"code":"132"
},
{
"desc":"CSS supports read/write splitting. Data written to the primary cluster (Leader) can be automatically synchronized to the secondary cluster (Follower). In this way, data i",
"product_code":"css",
"title":"Features",
"uri":"css_01_0162.html",
"doc_type":"usermanual",
"p_code":"132",
"code":"133"
},
{
"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":"css",
"title":"Instructions",
"uri":"css_01_0164.html",
"doc_type":"usermanual",
"p_code":"132",
"code":"134"
},
{
"desc":"Log in to the CSS management console.Choose Clusters in the navigation pane. On the Clusters page, locate the target cluster, and click Access Kibana in the Operation col",
"product_code":"css",
"title":"Basic Settings",
"uri":"css_01_0165.html",
"doc_type":"usermanual",
"p_code":"134",
"code":"135"
},
{
"desc":"Synchronize a single index.The request URL and request body parameters are as follows:After the synchronization function is enabled, indexes in the secondary cluster beco",
"product_code":"css",
"title":"Synchronizing Specified Indexes",
"uri":"css_01_0166.html",
"doc_type":"usermanual",
"p_code":"134",
"code":"136"
},
{
"desc":"The request URL and request body parameters are as follows:The following are two examples:1. Synchronize a single index from the primary cluster to the secondary cluster.",
"product_code":"css",
"title":"Matching Index Synchronization",
"uri":"css_01_0167.html",
"doc_type":"usermanual",
"p_code":"134",
"code":"137"
},
{
"desc":"You can specify multiple indexes or use wildcard to match the target indexes and terminate their synchronization tasks. Subsequent modifications to the indexes in the pri",
"product_code":"css",
"title":"Stopping Index Synchronization",
"uri":"css_01_0168.html",
"doc_type":"usermanual",
"p_code":"134",
"code":"138"
},
{
"desc":"Querying the created patterns.This API is used to query the pattern list and query a specified pattern by name.An example request is as follows:GET auto_sync/pattern\nGET ",
"product_code":"css",
"title":"Other Management APIs",
"uri":"css_01_0169.html",
"doc_type":"usermanual",
"p_code":"134",
"code":"139"
},
{
"desc":"This section describes how to switch from the primary cluster to the secondary cluster when the primary cluster is faulty.1. If the synchronization of specified indexes h",
"product_code":"css",
"title":"Best Practices",
"uri":"css_01_0170.html",
"doc_type":"usermanual",
"p_code":"132",
"code":"140"
},
{
"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":"css",
"title":"Importing Data to Elasticsearch",
"uri":"css_01_0045.html",
"doc_type":"usermanual",
"p_code":"",
"code":"141"
},
{
"desc":"You can use Logstash to collect data and migrate collected data to Elasticsearch in CSS. This method helps you effectively obtain and manage data through Elasticsearch. D",
"product_code":"css",
"title":"Using Logstash to Import Data to Elasticsearch",
"uri":"css_01_0048.html",
"doc_type":"usermanual",
"p_code":"141",
"code":"142"
},
{
"desc":"You can import data in various formats, such as JSON, to Elasticsearch in CSS by using Kibana or APIs.Before importing data, ensure that you can use Kibana to access the ",
"product_code":"css",
"title":"Using Kibana or APIs to Import Data to Elasticsearch",
"uri":"css_01_0024.html",
"doc_type":"usermanual",
"p_code":"141",
"code":"143"
},
{
"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":"css",
"title":"Monitoring",
"uri":"css_01_0041.html",
"doc_type":"usermanual",
"p_code":"",
"code":"144"
},
{
"desc":"You can use Cloud Eye to monitor cluster metrics of CSS in real time and quickly handle exceptions. For details about Cloud Eye, see the Cloud Eye User Guide.Table 1 list",
"product_code":"css",
"title":"Monitoring Metrics of Elasticsearch Clusters",
"uri":"css_01_0042.html",
"doc_type":"usermanual",
"p_code":"144",
"code":"145"
},
{
"desc":"This topic describes CSS metrics that can be monitored by Cloud Eye as well as their namespaces and dimensions. You can search for the monitoring metrics and alarms gener",
"product_code":"css",
"title":"Monitoring Metrics",
"uri":"css_01_0246.html",
"doc_type":"usermanual",
"p_code":"144",
"code":"146"
},
{
"desc":"You can use Cloud Eye to monitor the created clusters. After configuring the cluster monitoring, you can log in to the Cloud Eye management console to view cluster metric",
"product_code":"css",
"title":"Configuring Cluster Monitoring",
"uri":"css_01_0155.html",
"doc_type":"usermanual",
"p_code":"144",
"code":"147"
},
{
"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":"css",
"title":"Auditing",
"uri":"css_01_0049.html",
"doc_type":"usermanual",
"p_code":"",
"code":"148"
},
{
"desc":"Cloud Trace Service (CTS) is available on the public cloud platform. With CTS, you can record operations associated with CSS for later query, audit, and backtrack operati",
"product_code":"css",
"title":"Key Operations Recorded by CTS",
"uri":"css_01_0050.html",
"doc_type":"usermanual",
"p_code":"148",
"code":"149"
},
{
"desc":"After you enable CTS, it starts recording operations related to CSS. The CTS management console stores the last seven days of operation records. This section describes ho",
"product_code":"css",
"title":"Viewing Audit Logs",
"uri":"css_01_0051.html",
"doc_type":"usermanual",
"p_code":"148",
"code":"150"
},
{
"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":"css",
"title":"FAQs",
"uri":"css_02_0001.html",
"doc_type":"usermanual",
"p_code":"",
"code":"151"
},
{
"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":"css",
"title":"General Consulting",
"uri":"css_02_0051.html",
"doc_type":"usermanual",
"p_code":"151",
"code":"152"
},
{
"desc":"A region and availability zone (AZ) identify the location of a data center. You can create resources in a specific region and AZ.A region is a physical data center. Each ",
"product_code":"css",
"title":"What Are Regions and AZs?",
"uri":"css_02_0034.html",
"doc_type":"usermanual",
"p_code":"152",
"code":"153"
},
{
"desc":"CSS uses network isolation, in addition to various host and data security measures.Network isolationThe entire network is divided into two planes: service plane and manag",
"product_code":"css",
"title":"How Does CSS Ensure Data and Service Security?",
"uri":"css_02_0006.html",
"doc_type":"usermanual",
"p_code":"152",
"code":"154"
},
{
"desc":"Disk usage and cluster health status are two key metrics that you can focus on. You can log in to Cloud Eye and configure alarm rules for these metrics. If alarms are rep",
"product_code":"css",
"title":"Which CSS Metrics Should I Focus On?",
"uri":"css_02_0007.html",
"doc_type":"usermanual",
"p_code":"152",
"code":"155"
},
{
"desc":"CSS uses EVS and local disks to store your indices. During cluster creation, you can specify the EVS disk type and specifications (the EVS disk size).Supported EVS disk t",
"product_code":"css",
"title":"What Storage Options Does CSS Provide?",
"uri":"css_02_0008.html",
"doc_type":"usermanual",
"p_code":"152",
"code":"156"
},
{
"desc":"You can configure up to 200 nodes for a cluster (each node corresponds to an ECS). The maximum storage capacity of an ECS is the total capacity of EVS disks attached to t",
"product_code":"css",
"title":"What Is the Maximum Storage Capacity of CSS?",
"uri":"css_02_0009.html",
"doc_type":"usermanual",
"p_code":"152",
"code":"157"
},
{
"desc":"You can use any of the following three methods to manage CSS or to use search engine APIs. You can initiate requests based on constructed request messages.curlcurl is a c",
"product_code":"css",
"title":"How Can I Manage CSS?",
"uri":"css_02_0017.html",
"doc_type":"usermanual",
"p_code":"152",
"code":"158"
},
{
"desc":"You can store the following logs and files:Log files: Elasticsearch logsData files: Elasticsearch index filesOther files: cluster configuration filesOS: 5% storage space ",
"product_code":"css",
"title":"What Can the Disk Space of a CSS Cluster Be Used For?",
"uri":"css_02_0010.html",
"doc_type":"usermanual",
"p_code":"152",
"code":"159"
},
{
"desc":"Log in to the console.On the Clusters page, click Access Kibana in the Operation column of a cluster.Log in to Kibana and choose Dev Tools.On the Console page, run the GE",
"product_code":"css",
"title":"How Do I Check the Numbers of Shards and Replicas in a Cluster on the CSS Console?",
"uri":"css_02_0093.html",
"doc_type":"usermanual",
"p_code":"152",
"code":"160"
},
{
"desc":"CSS supports two data compression algorithms: LZ4 (by default) and best_compression.LZ4 algorithmLZ4 is the default compression algorithm of Elasticsearch. This algorithm",
"product_code":"css",
"title":"What Data Compression Algorithms Does CSS Use?",
"uri":"css_02_0041.html",
"doc_type":"usermanual",
"p_code":"152",
"code":"161"
},
{
"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":"css",
"title":"Functions",
"uri":"css_02_0055.html",
"doc_type":"usermanual",
"p_code":"151",
"code":"162"
},
{
"desc":"Elasticsearch does not support direct data migration between different VPCs. You can use either of the following methods to migrate data.Use the backup and restoration fu",
"product_code":"css",
"title":"Can Elasticsearch Data Be Migrated Between VPCs?",
"uri":"css_02_0058.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"163"
},
{
"desc":"CSS clusters cannot be directly migrated. You can back up a cluster to an OBS bucket and restore it to a new region.If the OBS bucket is in the same region as your CSS cl",
"product_code":"css",
"title":"How Do I Migrate a CSS Cluster Across Regions?",
"uri":"css_02_0094.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"164"
},
{
"desc":"The slow query log settings of CSS are the same as those of Elasticsearch. You can configure slow query logs via the _settings API. For example, you can run the following",
"product_code":"css",
"title":"How Do I Configure the Threshold for CSS Slow Query Logs?",
"uri":"css_02_0096.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"165"
},
{
"desc":"The CSS lifecycle is implemented using the Index State Management (ISM) of Open Distro. For details about how to configure policies related to the ISM template, see the O",
"product_code":"css",
"title":"How Do I Update the CSS Lifecycle Policy?",
"uri":"css_02_0119.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"166"
},
{
"desc":"Log in to the Kibana page of the cluster. In the navigation pane, choose Dev Tools.Modify and run the PUT /*/_settings{\"number_of_replicas\":0} command.Do not directly run",
"product_code":"css",
"title":"How Do I Set the Numbers of Index Copies to 0 in Batches?",
"uri":"css_02_0118.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"167"
},
{
"desc":"The possible causes are as follows:Shards were unevenly distributed in previous index allocations, and the predominate parameter in the latest indexed shard allocation wa",
"product_code":"css",
"title":"Why All New Index Shards Are Allocated to the Same Node?",
"uri":"css_02_0042.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"168"
},
{
"desc":"The snapshot function has been enabled for the cluster and snapshot information has been configured.Log in to the CSS management console, and click Clusters in the naviga",
"product_code":"css",
"title":"How Do I Query Snapshot Information?",
"uri":"css_02_0043.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"169"
},
{
"desc":"A cluster cannot be directly upgraded. You can purchase a cluster of a later version and migrate your data to it.Creating a Cluster: Create a cluster of a later version i",
"product_code":"css",
"title":"Can I Upgrade a Cluster from an Earlier Version to a Later Version?",
"uri":"css_02_0052.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"170"
},
{
"desc":"Yes. You can use a snapshot stored in OBS to restore a cluster. A deleted cluster that has no snapshots in OBS cannot be restored. Exercise caution when deleting a cluste",
"product_code":"css",
"title":"Can I Restore a Deleted Cluster?",
"uri":"css_02_0120.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"171"
},
{
"desc":"You can modify TLS algorithms in CSS 7.6.2 and later versions.Log in to the CSS management console.In the navigation pane, choose Clusters. The cluster list is displayed.",
"product_code":"css",
"title":"Can I Modify the TLS Algorithm of an Elasticsearch Cluster?",
"uri":"css_02_0101.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"172"
},
{
"desc":"If the query results on shards exceed the upper limit of records that can be returned (default value: 10000), you need to increase the limit by changing the value of sear",
"product_code":"css",
"title":"How Do I Set the search.max_buckets Parameter for an ES Cluster?",
"uri":"css_02_0102.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"173"
},
{
"desc":"If the value of node.roles of a client node is i, then is this client node an injest node?Are there coordinating only nodes in clusters? Are the client requests distribut",
"product_code":"css",
"title":"Does the Value i of node.roles Indicate an Injest Node?",
"uri":"css_02_0127.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"174"
},
{
"desc":"In Elasticsearch 7.x and later versions, types cannot be created for indexes.If you need to use types, add include_type_name=true to the command. For example:After the co",
"product_code":"css",
"title":"How Do I Create a Type Under an Index in an Elasticsearch 7.x Cluster?",
"uri":"css_02_0132.html",
"doc_type":"usermanual",
"p_code":"162",
"code":"175"
},
{
"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":"css",
"title":"Clusters in Security Mode",
"uri":"css_02_0063.html",
"doc_type":"usermanual",
"p_code":"151",
"code":"176"
},
{
"desc":"Non-security mode: no restrictions.Cluster in security mode: The Filebeat OSS version must match the cluster version. For details on how to download the Filebeat OSS vers",
"product_code":"css",
"title":"What Is the Relationship Between the Filebeat Version and Cluster Version?",
"uri":"css_02_0064.html",
"doc_type":"usermanual",
"p_code":"176",
"code":"177"
},
{
"desc":"The security certificate (CloudSearchService.cer) can be downloaded only for security clusters that have enabled HTTPS access.Log in to the CSS management console.In the ",
"product_code":"css",
"title":"How Do I Obtain the Security Certificate of CSS?",
"uri":"css_02_0106.html",
"doc_type":"usermanual",
"p_code":"176",
"code":"178"
},
{
"desc":"The security certificate (CloudSearchService.cer) can be downloaded only for security clusters that have enabled HTTPS access. Most software supports certificates in the ",
"product_code":"css",
"title":"How Do I Convert the Format of a CER Security Certificate?",
"uri":"css_02_0128.html",
"doc_type":"usermanual",
"p_code":"176",
"code":"179"
},
{
"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":"css",
"title":"Resource Usage and Change",
"uri":"css_02_0066.html",
"doc_type":"usermanual",
"p_code":"151",
"code":"180"
},
{
"desc":"Run the following command to delete a single index data record.curl -XDELETE http://IP:9200/Index_nameIP: the IP address of any node in the clustercurl -XDELETE http://",
"product_code":"css",
"title":"How Do I Clear Expired Data to Release Storage Space?",
"uri":"css_02_0067.html",
"doc_type":"usermanual",
"p_code":"180",
"code":"181"
},
{
"desc":"Run GET _cat/indices?v in Kibana to check the number of cluster replicas. If the value of rep is 1, the cluster has two replicas.If the value of rep is not 1, run the fol",
"product_code":"css",
"title":"How Do I Configure a Two-Replica CSS Cluster?",
"uri":"css_02_0068.html",
"doc_type":"usermanual",
"p_code":"180",
"code":"182"
},
{
"desc":"Manually: Run the DELETE /my_index command in Kibana.Automatically: Create scheduled tasks to call the index deletion request and periodically execute the tasks. CSS supp",
"product_code":"css",
"title":"How Do I Delete Index Data?",
"uri":"css_02_0069.html",
"doc_type":"usermanual",
"p_code":"180",
"code":"183"
},
{
"desc":"Once an index is created, the number of primary shards cannot be changed.You can run the following command in Kibana to change the number of replicas:index specifies the ",
"product_code":"css",
"title":"Can I Change the Number of Shards to Four with Two Replicas When There Is One Shard Set in the JSON File?",
"uri":"css_02_0089.html",
"doc_type":"usermanual",
"p_code":"180",
"code":"184"
},
{
"desc":"A large number of shards in a cluster slows down shard creation.If automatic index creation is enabled, slow index creation may cause a large number of write requests to ",
"product_code":"css",
"title":"What Are the Impacts If an Elasticsearch Cluster Has Too Many Shards?",
"uri":"css_02_0124.html",
"doc_type":"usermanual",
"p_code":"180",
"code":"185"
},
{
"desc":"Method 1Open Kibana and run the following commands on the Dev Tools page:PUT _all/_settings?preserve_existing=true\n{\n\"index.max_result_window\" : \"10000000\"\n}Open Kibana a",
"product_code":"css",
"title":"How Do I Set the Default Maximum Number of Records Displayed on a Page for an Elasticsearch Cluster",
"uri":"css_02_0125.html",
"doc_type":"usermanual",
"p_code":"180",
"code":"186"
},
{
"desc":"Running the delete_by_query command can only add a deletion mark to the target data instead of really deleting it. When you search for data, all data is searched and the ",
"product_code":"css",
"title":"Why Does the Disk Usage Increase After the delete_by_query Command Was Executed to Delete Data?",
"uri":"css_02_0126.html",
"doc_type":"usermanual",
"p_code":"180",
"code":"187"
},
{
"desc":"Clear the fielddataDuring aggregation and sorting, data are converted to the fielddata structure, which occupies a large amount of memory.Run the following commands on Ki",
"product_code":"css",
"title":"How Do I Clear the Cache of a CSS Cluster?",
"uri":"css_02_0130.html",
"doc_type":"usermanual",
"p_code":"180",
"code":"188"
},
{
"desc":"The cluster monitoring result shows that the average memory usage of a cluster is 98%. Does it affect cluster performance?In an ES cluster, 50% of the memory is occupied ",
"product_code":"css",
"title":"The Average Memory Usage of an Elasticsearch Cluster Reaches 98%",
"uri":"css_02_0131.html",
"doc_type":"usermanual",
"p_code":"180",
"code":"189"
},
{
"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":"css",
"title":"Components",
"uri":"css_02_0070.html",
"doc_type":"usermanual",
"p_code":"151",
"code":"190"
},
{
"desc":"CSS does not currently support installation of Search Guard.CSS provides clusters in security mode, which have the same functions as Search Guard.",
"product_code":"css",
"title":"Can I Install Search Guard on CSS?",
"uri":"css_02_0088.html",
"doc_type":"usermanual",
"p_code":"190",
"code":"191"
},
{
"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":"css",
"title":"Kibana",
"uri":"css_02_0073.html",
"doc_type":"usermanual",
"p_code":"151",
"code":"192"
},
{
"desc":"Exporting data from Kibana requires the SQL Workbench plugin. Currently, you can only export data from Kibana 7.6.2 or later.In SQL Workbench of Kibana, you can enter Ela",
"product_code":"css",
"title":"Can I Export Data from Kibana?",
"uri":"css_02_0098.html",
"doc_type":"usermanual",
"p_code":"192",
"code":"193"
},
{
"desc":"Run the following command to query index data through an API on Kibana:The returned data is shown in the following figure.took: How many milliseconds the query cost.time_",
"product_code":"css",
"title":"How Do I Query Index Data on Kibana in an ES Cluster?",
"uri":"css_02_0099.html",
"doc_type":"usermanual",
"p_code":"192",
"code":"194"
},
{
"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":"css",
"title":"Clusters",
"uri":"css_02_0077.html",
"doc_type":"usermanual",
"p_code":"151",
"code":"195"
},
{
"desc":"Perform the following steps to troubleshoot this problem:Check whether the ECS instance and cluster are in the same VPC.If they are, go to 2.If they are not, create an EC",
"product_code":"css",
"title":"Why Does My ECS Fail to Connect to a Cluster?",
"uri":"css_02_0025.html",
"doc_type":"usermanual",
"p_code":"195",
"code":"196"
},
{
"desc":"No.",
"product_code":"css",
"title":"Can a New Cluster Use the IP Address of the Old Cluster?",
"uri":"css_02_0078.html",
"doc_type":"usermanual",
"p_code":"195",
"code":"197"
},
{
"desc":"No. To access a cluster from the Internet, see Public IP Address Access.",
"product_code":"css",
"title":"Can I Associate My EIP If I Want to Access the Cluster from the Internet?",
"uri":"css_02_0079.html",
"doc_type":"usermanual",
"p_code":"195",
"code":"198"
},
{
"desc":"No. Currently, CSS does not integrate the x-pack component.",
"product_code":"css",
"title":"Can I Use x-pack-sql-jdbc to Access CSS Clusters and Query Data?",
"uri":"css_02_0081.html",
"doc_type":"usermanual",
"p_code":"195",
"code":"199"
},
{
"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":"css",
"title":"Ports",
"uri":"css_02_0082.html",
"doc_type":"usermanual",
"p_code":"151",
"code":"200"
},
{
"desc":"Yes. Port 9200 is used by external systems to access CSS clusters, and port 9300 is used for communication between nodes.The methods for accessing port 9300 are as follow",
"product_code":"css",
"title":"Do Ports 9200 and 9300 Both Open?",
"uri":"css_02_0083.html",
"doc_type":"usermanual",
"p_code":"200",
"code":"201"
},
{
"desc":"Currently to access Kibana dashboard of CSS Service, a user has to login to OTC consoleand navigate to Kibana login page.To make the access convenient a user can utilize ",
"product_code":"css",
"title":"How to access Kibana from outside cloud using ELB?",
"uri":"css_02_0201.html",
"doc_type":"usermanual",
"p_code":"200",
"code":"202"
},
{
"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":"css",
"title":"Change History",
"uri":"css_01_0055.html",
"doc_type":"usermanual",
"p_code":"",
"code":"203"
}
]