forked from docs/doc-exports
Lu, Huayi
c5fcb46315
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Lu, Huayi <luhuayi@huawei.com> Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
1865 lines
73 KiB
JSON
1865 lines
73 KiB
JSON
[
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{
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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.",
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"product_code":"dws",
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"title":"Service Overview",
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"uri":"dws_01_index.html",
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"doc_type":"usermanual",
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"p_code":"",
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"code":"1"
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},
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{
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"desc":"GaussDB(DWS) is an online data processing database that runs on the cloud infrastructure to provide scalable, fully-managed, and out-of-the-box analytic database service,",
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"product_code":"dws",
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"title":"What Is GaussDB(DWS)?",
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"uri":"dws_01_0002.html",
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"doc_type":"usermanual",
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"p_code":"1",
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"code":"2"
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},
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{
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"desc":"GaussDB(DWS) uses the GaussDB database kernel and is compatible with PostgreSQL 9.2.4. It transforms from a single OLTP database to an enterprise-level distributed OLAP d",
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"product_code":"dws",
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"title":"Advantages",
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"uri":"dws_01_0007.html",
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"doc_type":"usermanual",
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"p_code":"1",
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"code":"3"
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},
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{
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"desc":"Enhanced ETL + Real-time BI analysisETL + BI analysisThe data warehouse is the pillar of the Business Intelligence (BI) system for collecting, storing, and analyzing mass",
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"product_code":"dws",
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"title":"Application Scenarios",
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"uri":"dws_01_00013.html",
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"doc_type":"usermanual",
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"p_code":"1",
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"code":"4"
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},
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{
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"desc":"GaussDB(DWS) enables you to use this service through various methods, such as the GaussDB(DWS) management console, GaussDB(DWS) client, and REST APIs. This section descri",
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"product_code":"dws",
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"title":"Functions",
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"uri":"dws_01_0091.html",
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"doc_type":"usermanual",
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"p_code":"1",
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"code":"5"
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},
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{
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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.",
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"product_code":"dws",
|
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"title":"Concepts",
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"uri":"dws_01_0004.html",
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"doc_type":"usermanual",
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"p_code":"1",
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"code":"6"
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},
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{
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"desc":"A cluster is a server group that consists of multiple nodes. GaussDB(DWS) is organized using clusters. A data warehouse cluster contains nodes with the same flavor in the",
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"product_code":"dws",
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"title":"GaussDB(DWS) Management Concepts",
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"uri":"dws_01_0005.html",
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"doc_type":"usermanual",
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"p_code":"6",
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"code":"7"
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},
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{
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"desc":"A data warehouse cluster is an analysis-oriented relational database platform that supports online analysis.OLAP is a major function of data warehouse clusters. It suppor",
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"product_code":"dws",
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"title":"GaussDB(DWS) Database Concepts",
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"uri":"dws_01_0006.html",
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"doc_type":"usermanual",
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"p_code":"6",
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"code":"8"
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},
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{
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"desc":"GaussDB(DWS) uses Identity and Access Management (IAM) for authentication and authorization.Users who have the DWS Administrator permissions can fully utilize GaussDB(DWS",
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"product_code":"dws",
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"title":"Related Services",
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"uri":"dws_01_0003.html",
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"doc_type":"usermanual",
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"p_code":"1",
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"code":"9"
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},
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{
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"desc":"If you need to assign different permissions to employees in your enterprise to access your cloud GaussDB(DWS) resources, IAM is a good choice for fine-grained permissions",
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"product_code":"dws",
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"title":"GaussDB(DWS) Permissions Management",
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"uri":"dws_01_0144.html",
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"doc_type":"usermanual",
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"p_code":"1",
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"code":"10"
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},
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{
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"desc":"The following figure shows how to use GaussDB(DWS).GaussDB(DWS) provides a web-based management console and HTTPS-compliant APIs for you to manage data warehouse clusters",
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"product_code":"dws",
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"title":"GaussDB(DWS) Access",
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"uri":"dws_01_0009.html",
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"doc_type":"usermanual",
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"p_code":"1",
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"code":"11"
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},
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{
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"desc":"You can manage clusters only and cannot directly access nodes in a cluster. You can use a cluster's IP address and port to access the database in the cluster.You cannot c",
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"product_code":"dws",
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"title":"Restrictions",
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"uri":"dws_01_0010.html",
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"doc_type":"usermanual",
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"p_code":"1",
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"code":"12"
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},
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{
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"desc":"This section describes the technical specifications of GaussDB(DWS) in different versions.",
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"product_code":"dws",
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"title":"Technical Specifications",
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"uri":"dws_01_00113.html",
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"doc_type":"usermanual",
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"p_code":"1",
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"code":"13"
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},
|
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{
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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.",
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"product_code":"dws",
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"title":"Getting Started",
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"uri":"dws_01_0078.html",
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"doc_type":"usermanual",
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"p_code":"",
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"code":"14"
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},
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{
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"desc":"This guide is an introductory tutorial that demonstrates how to create a sample GaussDB(DWS) cluster, connect to the cluster database, import the sample data from OBS, an",
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"product_code":"dws",
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"title":"Step 1: Starting Preparations",
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"uri":"dws_01_0088.html",
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"doc_type":"usermanual",
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"p_code":"14",
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"code":"15"
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},
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{
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"desc":"Before using GaussDB(DWS) to analyze data, create a cluster. A cluster consists of multiple nodes in the same subnet. These nodes together provide services. This section ",
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"product_code":"dws",
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"title":"Step 2: Creating a Cluster",
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"uri":"dws_01_0013.html",
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"doc_type":"usermanual",
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"p_code":"14",
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"code":"16"
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},
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{
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"desc":"This section describes how to use a database client to connect to the database in a GaussDB(DWS) cluster. In the following example, the Data Studio client tool is used fo",
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"product_code":"dws",
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"title":"Step 3: Connecting to a Cluster",
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"uri":"dws_01_0107.html",
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"doc_type":"usermanual",
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"p_code":"14",
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"code":"17"
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},
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{
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"desc":"After performing the steps in preceding sections, you can refer to the documentation listed as follows for more information about GaussDB(DWS):Data Warehouse Service (DWS",
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"product_code":"dws",
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"title":"Step 4: Viewing Other Documents and Clearing Resources",
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"uri":"dws_01_0079.html",
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"doc_type":"usermanual",
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"p_code":"14",
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"code":"18"
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},
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{
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"desc":"GaussDB(DWS) is an online data processing database that uses the cloud infrastructure to provide scalable, fully-managed, and out-of-the-box analytic database service, fr",
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"product_code":"dws",
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"title":"Process for Using GaussDB(DWS)",
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"uri":"dws_01_0018.html",
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"doc_type":"usermanual",
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"p_code":"",
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"code":"19"
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},
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{
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"desc":"Before using GaussDB(DWS), make the following preparations:Registering a Public Cloud Account and Completing Real-Name AuthenticationDetermining the Cluster PortsIf you d",
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"product_code":"dws",
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"title":"Preparations",
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"uri":"dws_01_0154.html",
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"doc_type":"usermanual",
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"p_code":"",
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"code":"20"
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},
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{
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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.",
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"product_code":"dws",
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"title":"Cluster Configuration",
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"uri":"dws_01_0160.html",
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"doc_type":"usermanual",
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"p_code":"",
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"code":"21"
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},
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{
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"desc":"This section describes how to log in to the GaussDB(DWS) management console and use GaussDB(DWS).",
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"product_code":"dws",
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"title":"Accessing the GaussDB(DWS) Management Console",
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"uri":"dws_01_0157.html",
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"doc_type":"usermanual",
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"p_code":"21",
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"code":"22"
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},
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{
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"desc":"To use cloud GaussDB(DWS), create a cluster first.This section describes how to create a data warehouse cluster on the GaussDB(DWS) management console.You have evaluated ",
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"product_code":"dws",
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"title":"Creating a Cluster",
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"uri":"dws_01_0019.html",
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"doc_type":"usermanual",
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"p_code":"21",
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"code":"23"
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},
|
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{
|
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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.",
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"product_code":"dws",
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"title":"Cluster Connection",
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"uri":"dws_01_0131.html",
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"doc_type":"usermanual",
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"p_code":"",
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"code":"24"
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},
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{
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"desc":"If you have created a GaussDB(DWS) cluster, you can use the SQL client tool or a third-party driver such as JDBC or ODBC to connect to the cluster and access the database",
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"product_code":"dws",
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"title":"Methods of Connecting to a Cluster",
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"uri":"dws_01_0137.html",
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"doc_type":"usermanual",
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"p_code":"24",
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"code":"25"
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},
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{
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"desc":"You can access GaussDB(DWS) clusters by different methods and the connection address of each connection method varies. This section describes how to view and obtain the p",
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"product_code":"dws",
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"title":"Obtaining the Cluster Connection Address",
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"uri":"dws_01_0033.html",
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"doc_type":"usermanual",
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"p_code":"24",
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"code":"26"
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},
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{
|
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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.",
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"product_code":"dws",
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"title":"Using the gsql CLI Client to Connect to a Cluster",
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"uri":"dws_01_0093.html",
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"doc_type":"usermanual",
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"p_code":"24",
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"code":"27"
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},
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{
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"desc":"GaussDB(DWS) provides client tool packages that match the cluster versions. You can download the desired client tool package on the GaussDB(DWS) management console.The cl",
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"product_code":"dws",
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"title":"Downloading the Client",
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"uri":"dws_01_0031.html",
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"doc_type":"usermanual",
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"p_code":"27",
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"code":"28"
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},
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{
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"desc":"The gsql command line client provided by GaussDB(DWS) runs on the Linux OS. Before using it to remotely connect to a GaussDB(DWS) cluster, you need to prepare a Linux hos",
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"product_code":"dws",
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"title":"Preparing an ECS as the gsql Client Host",
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"uri":"dws_01_0128.html",
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"doc_type":"usermanual",
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"p_code":"27",
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"code":"29"
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},
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{
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"desc":"This section describes how to connect to a database through an SQL client after you create a data warehouse cluster and before you use the cluster's database. GaussDB(DWS",
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"product_code":"dws",
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"title":"Using the gsql Client to Connect to a Cluster",
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"uri":"dws_01_0037.html",
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"doc_type":"usermanual",
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"p_code":"27",
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"code":"30"
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},
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{
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"desc":"If the client or JDBC/ODBC driver needs to use SSL connection, you must configure related SSL connection parameters in the client or application code. The GaussDB(DWS) ma",
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"product_code":"dws",
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"title":"Establishing Secure TCP/IP Connections in SSL Mode",
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"uri":"dws_01_0038.html",
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"doc_type":"usermanual",
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"p_code":"27",
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"code":"31"
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},
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{
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"desc":"GaussDB(DWS) supports connections in SSL authentication mode so that data transmitted between the GaussDB(DWS) client and the database can be encrypted. The SSL mode deli",
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"product_code":"dws",
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"title":"(Optional) Configuring SSL Connection",
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"uri":"dws_01_0076.html",
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"doc_type":"usermanual",
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"p_code":"27",
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"code":"32"
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},
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{
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"desc":"GaussDB(DWS) supports the standard SSL (TLS 1.2). As a highly secure protocol, SSL authenticates bidirectional identification between the server and client using digital ",
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"product_code":"dws",
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"title":"(Optional) Downloading the SSL Certificate",
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"uri":"dws_01_0083.html",
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"doc_type":"usermanual",
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"p_code":"27",
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"code":"33"
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},
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{
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"desc":"Data Studio is a SQL client tool running on the Windows operating system. It provides various GUIs for you to manage databases and database objects, as well as edit, run,",
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"product_code":"dws",
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"title":"Using the Data Studio GUI Client to Connect to a Cluster",
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"uri":"dws_01_0094.html",
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"doc_type":"usermanual",
|
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"p_code":"24",
|
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"code":"34"
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},
|
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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.",
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"product_code":"dws",
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"title":"Using the JDBC and ODBC Drivers to Connect to a Cluster",
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"uri":"dws_01_0081.html",
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"doc_type":"usermanual",
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"p_code":"24",
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"code":"35"
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},
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{
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"desc":"If the connection pool mechanism is used during application development, the following specifications must be met. Otherwise, connections in the connection pool have stat",
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"product_code":"dws",
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"title":"Development Specifications",
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"uri":"dws_01_0106.html",
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"doc_type":"usermanual",
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"p_code":"35",
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"code":"36"
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},
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{
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"desc":"The JDBC or ODBC driver is used to connect to data warehouse clusters. You can download the JDBC or ODBC driver provided by GaussDB(DWS) from the management console or us",
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"product_code":"dws",
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"title":"Downloading the JDBC or ODBC Driver",
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"uri":"dws_01_0032.html",
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"doc_type":"usermanual",
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"p_code":"35",
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"code":"37"
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},
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{
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"desc":"In GaussDB(DWS), you can use a JDBC driver to connect to a database on Linux or Windows. The driver can connect to the database through an ECS on the cloud platform or ov",
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"product_code":"dws",
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"title":"Using a JDBC Driver to Connect to a Database",
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"uri":"dws_01_0077.html",
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"doc_type":"usermanual",
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"p_code":"35",
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"code":"38"
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},
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{
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"desc":"GaussDB(DWS) allows you to use an ODBC driver to connect to the database through an ECS on the cloud platform or over the Internet.For details about how to use the ODBC A",
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"product_code":"dws",
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"title":"Using an ODBC Driver to Connect to a Database",
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"uri":"dws_01_0086.html",
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"doc_type":"usermanual",
|
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"p_code":"35",
|
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"code":"39"
|
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},
|
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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.",
|
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"product_code":"dws",
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"title":"Connecting to a Cluster Using IAM Authentication",
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"uri":"dws_01_0133.html",
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"doc_type":"usermanual",
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"p_code":"35",
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"code":"40"
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},
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{
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"desc":"GaussDB(DWS) allows you to access databases using IAM authentication. When you use the JDBC application program to connect to a cluster, set the IAM username, credential,",
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"product_code":"dws",
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"title":"Overview",
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"uri":"dws_01_0134.html",
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"doc_type":"usermanual",
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"p_code":"40",
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"code":"41"
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},
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{
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"desc":"The IAM account you use to access a database must be granted with the DWS Database Access permission. Only users with both the DWS Administrator and DWS Database Access p",
|
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"product_code":"dws",
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"title":"Granting an IAM Account the DWS Database Access Permission",
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"uri":"dws_01_0135.html",
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"doc_type":"usermanual",
|
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"p_code":"40",
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"code":"42"
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},
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{
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"desc":"You can log in to the management console to create an AK/SK pair or use an existing one.Log in to the management console, move your cursor over your account in the upper ",
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"product_code":"dws",
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"title":"Creating an IAM User Credential",
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"uri":"dws_01_0136.html",
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"doc_type":"usermanual",
|
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"p_code":"40",
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"code":"43"
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},
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{
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"desc":"When you use the JDBC application program to connect to a cluster, set the IAM username, credential, and other information as you configure the JDBC URL. After doing this",
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"product_code":"dws",
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"title":"Configuring the JDBC Connection to Connect to a Cluster Using IAM Authentication",
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"uri":"dws_01_0132.html",
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"doc_type":"usermanual",
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"p_code":"40",
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"code":"44"
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},
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{
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"desc":"By default, a database supports a certain number of connections. Administrators can manage database connections to learn about the connection performance of the current d",
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"product_code":"dws",
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"title":"Managing Database Connections",
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"uri":"dws_01_0039.html",
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"doc_type":"usermanual",
|
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"p_code":"24",
|
|
"code":"45"
|
|
},
|
|
{
|
|
"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.",
|
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"product_code":"dws",
|
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"title":"Clusters",
|
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"uri":"dws_01_0600.html",
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"doc_type":"usermanual",
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"p_code":"",
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"code":"46"
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},
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{
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"desc":"On the Clusters page of the GaussDB(DWS) management console, you can view the general information about a cluster in the cluster list, such as the cluster status, task in",
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"product_code":"dws",
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"title":"Checking the Cluster Status",
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"uri":"dws_01_0020.html",
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"doc_type":"usermanual",
|
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"p_code":"46",
|
|
"code":"47"
|
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},
|
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{
|
|
"desc":"Log in to the GaussDB(DWS) management console. In the navigation tree on the left, choose Clusters. In the cluster list, locate the required cluster and click its name. T",
|
|
"product_code":"dws",
|
|
"title":"Viewing Basic Cluster Information",
|
|
"uri":"dws_01_0112.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"48"
|
|
},
|
|
{
|
|
"desc":"A domain name is a string of characters separated by dots to identify the location of a computer or a computer group on the Internet, for example, www.example.com. You ca",
|
|
"product_code":"dws",
|
|
"title":"Managing Access Domain Names",
|
|
"uri":"dws_01_0140.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"49"
|
|
},
|
|
{
|
|
"desc":"On the Nodes tab page, you can view the node list of the current cluster, add new nodes to or remove nodes from it, and view the node usage, status, and flavors.This feat",
|
|
"product_code":"dws",
|
|
"title":"Nodes",
|
|
"uri":"dws_01_0818.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"50"
|
|
},
|
|
{
|
|
"desc":"As your data warehouse capacity and performance requirements change, you can adjust the sizes of existing clusters on the management console to utilize compute and storag",
|
|
"product_code":"dws",
|
|
"title":"Cluster Scale-out",
|
|
"uri":"dws_01_0023.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"51"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Cluster Redistribution",
|
|
"uri":"dws_01_0820.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"52"
|
|
},
|
|
{
|
|
"desc":"Data redistribution, where data in existing nodes is evenly allocated to the new nodes after you scale out a cluster, is a time-consuming yet crucial task that accelerate",
|
|
"product_code":"dws",
|
|
"title":"Redistributing Data",
|
|
"uri":"dws_01_8201.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"52",
|
|
"code":"53"
|
|
},
|
|
{
|
|
"desc":"On the View Redistribution Details page, you can view the redistribution mode and progress of the current cluster. In offline scheduling mode, you can pause, resume, and ",
|
|
"product_code":"dws",
|
|
"title":"Viewing Redistribution Details",
|
|
"uri":"dws_01_8202.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"52",
|
|
"code":"54"
|
|
},
|
|
{
|
|
"desc":"In the Unbalanced state, the number of primary instances on some nodes increases. As a result, the load pressure is high. In this case, the cluster is normal, but the ove",
|
|
"product_code":"dws",
|
|
"title":"Performing a Primary/Standby Switchback",
|
|
"uri":"dws_01_8115.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"55"
|
|
},
|
|
{
|
|
"desc":"After you create a data warehouse cluster, the system automatically configures a random maintenance window for the cluster. Alternatively, you can customize a maintenance",
|
|
"product_code":"dws",
|
|
"title":"Cluster Upgrade",
|
|
"uri":"dws_01_0008.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"56"
|
|
},
|
|
{
|
|
"desc":"GaussDB(DWS) allows you to reset the password of the database administrator. If a database administrator forgets their password or the account is locked because the numbe",
|
|
"product_code":"dws",
|
|
"title":"Password Reset",
|
|
"uri":"dws_01_0026.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"57"
|
|
},
|
|
{
|
|
"desc":"If a cluster is in the Unbalanced state or cannot work properly, you may need to restart it for restoration. After modifying a cluster's configurations, such as security ",
|
|
"product_code":"dws",
|
|
"title":"Cluster Restart",
|
|
"uri":"dws_01_0024.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"58"
|
|
},
|
|
{
|
|
"desc":"After a cluster is created, you can modify the cluster's database parameters as required. On the GaussDB(DWS) management console, you can view or set common database para",
|
|
"product_code":"dws",
|
|
"title":"Modifying Database Parameters",
|
|
"uri":"dws_01_0152.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"59"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"MRS Data Sources",
|
|
"uri":"dws_01_0057.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"60"
|
|
},
|
|
{
|
|
"desc":"MRS is a big data cluster running based on the open-source Hadoop ecosystem. It provides the industry's latest cutting-edge storage and analysis capabilities of massive v",
|
|
"product_code":"dws",
|
|
"title":"Importing Data from MRS to GaussDB(DWS)",
|
|
"uri":"dws_01_0055.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"60",
|
|
"code":"61"
|
|
},
|
|
{
|
|
"desc":"Before GaussDB(DWS) reads data from MRS HDFS, you need to create an MRS data source connection that functions as a channel of transporting data warehouse cluster data and",
|
|
"product_code":"dws",
|
|
"title":"Creating an MRS Data Source Connection",
|
|
"uri":"dws_01_0059.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"60",
|
|
"code":"62"
|
|
},
|
|
{
|
|
"desc":"For MRS, if the following parameter configurations of the HDFS cluster change, data may fail to be imported to the data warehouse cluster from the HDFS cluster. Before im",
|
|
"product_code":"dws",
|
|
"title":"Updating the MRS Data Source Configuration",
|
|
"uri":"dws_01_0156.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"60",
|
|
"code":"63"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Managing Cluster Workloads",
|
|
"uri":"dws_01_0723.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"64"
|
|
},
|
|
{
|
|
"desc":"When multiple database users query jobs at the same time, some complex queries may occupy cluster resources for a long time, affecting the performance of other queries. F",
|
|
"product_code":"dws",
|
|
"title":"Workload Management Overview",
|
|
"uri":"dws_01_07231.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"64",
|
|
"code":"65"
|
|
},
|
|
{
|
|
"desc":"You can create a maximum of 63 workload queues.",
|
|
"product_code":"dws",
|
|
"title":"Adding Workload Queues",
|
|
"uri":"dws_01_07233.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"64",
|
|
"code":"66"
|
|
},
|
|
{
|
|
"desc":"You can modify the parameters of a workload queue.Click Edit on the right and modify the parameters according to Table 1.Workload queue parametersParameterDescriptionValu",
|
|
"product_code":"dws",
|
|
"title":"Modifying Workload Queues",
|
|
"uri":"dws_01_07234.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"64",
|
|
"code":"67"
|
|
},
|
|
{
|
|
"desc":"In the Query Overview area, you can view the number of long and short queries that are running in the current queue at the current time. The chart information is refreshe",
|
|
"product_code":"dws",
|
|
"title":"Workload Queue Query",
|
|
"uri":"dws_01_07238.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"64",
|
|
"code":"68"
|
|
},
|
|
{
|
|
"desc":"If the queue to be deleted has associated database users, these users will be associated with the default queue after the queue is deleted.",
|
|
"product_code":"dws",
|
|
"title":"Deleting Workload Queues",
|
|
"uri":"dws_01_07239.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"64",
|
|
"code":"69"
|
|
},
|
|
{
|
|
"desc":"Workload plan is an advanced workload management feature provided by GaussDB(DWS). You can create a workload plan, add multiple stages to the plan, and configure differen",
|
|
"product_code":"dws",
|
|
"title":"Workload Plans",
|
|
"uri":"dws_01_72362.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"64",
|
|
"code":"70"
|
|
},
|
|
{
|
|
"desc":"You must stop the workload plan when adding a stage. Otherwise, the stage cannot be added.You can add a maximum of 48 stages for each plan.The switchover time of all phas",
|
|
"product_code":"dws",
|
|
"title":"Stages of Workload Plans",
|
|
"uri":"dws_01_72363.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"64",
|
|
"code":"71"
|
|
},
|
|
{
|
|
"desc":"You can commission a workload plan in the test environment and export the plan configurations to the production environment.An ongoing workload plan cannot be imported.Be",
|
|
"product_code":"dws",
|
|
"title":"Importing and Exporting Workload Plans",
|
|
"uri":"dws_01_72365.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"64",
|
|
"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":"dws",
|
|
"title":"Managing Logical Clusters",
|
|
"uri":"dws_01_0724.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"73"
|
|
},
|
|
{
|
|
"desc":"A physical cluster can be divided into logical clusters that use the node-group mechanism. Tables in a database can be allocated to different physical nodes by logical cl",
|
|
"product_code":"dws",
|
|
"title":"Overview",
|
|
"uri":"dws_01_7241.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"73",
|
|
"code":"74"
|
|
},
|
|
{
|
|
"desc":"If you access the Logical Clusters page for the first time, the metadata of the logical cluster created at the backend is synchronized to the frontend. After the synchron",
|
|
"product_code":"dws",
|
|
"title":"Adding Logical Clusters",
|
|
"uri":"dws_01_7242.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"73",
|
|
"code":"75"
|
|
},
|
|
{
|
|
"desc":"Nodes are added to or removed from a logical cluster by ring.At least one ring must be reserved in a logical cluster.The ring removed from the logical cluster will be add",
|
|
"product_code":"dws",
|
|
"title":"Editing Logical Clusters",
|
|
"uri":"dws_01_7243.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"73",
|
|
"code":"76"
|
|
},
|
|
{
|
|
"desc":"The first added logical cluster cannot be deleted.Nodes of the deleted logical cluster are added to the elastic cluster.",
|
|
"product_code":"dws",
|
|
"title":"Deleting Logical Clusters",
|
|
"uri":"dws_01_7244.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"73",
|
|
"code":"77"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Restarting Logical Clusters",
|
|
"uri":"dws_01_7245.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"73",
|
|
"code":"78"
|
|
},
|
|
{
|
|
"desc":"Logical clusters and elastic clusters cannot be scaled out online.",
|
|
"product_code":"dws",
|
|
"title":"Scaling Out Logical Clusters",
|
|
"uri":"dws_01_7246.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"73",
|
|
"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":"dws",
|
|
"title":"Managing Tags",
|
|
"uri":"dws_01_0103.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"80"
|
|
},
|
|
{
|
|
"desc":"A tag is a key-value pair customized by users and used to identify cloud resources. It helps users to classify and search for cloud resources.Tags are composed of key-val",
|
|
"product_code":"dws",
|
|
"title":"Overview",
|
|
"uri":"dws_01_0104.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"80",
|
|
"code":"81"
|
|
},
|
|
{
|
|
"desc":"This section describes how to search for clusters based on tags and how to add, modify, and delete tags for clusters.You can quickly locate a tagged cluster using tags.Yo",
|
|
"product_code":"dws",
|
|
"title":"Tag Management",
|
|
"uri":"dws_01_0105.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"80",
|
|
"code":"82"
|
|
},
|
|
{
|
|
"desc":"An enterprise project is a cloud resource management mode. Enterprise Management provides users with comprehensive management in cloud-based resources, personnel, and per",
|
|
"product_code":"dws",
|
|
"title":"Managing Enterprise Projects",
|
|
"uri":"dws_01_0113.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"83"
|
|
},
|
|
{
|
|
"desc":"If you do not need to use a cluster, perform the operations in this section to delete it.Deleted clusters cannot be recovered. Additionally, you cannot access user data a",
|
|
"product_code":"dws",
|
|
"title":"Deleting Clusters",
|
|
"uri":"dws_01_0025.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"84"
|
|
},
|
|
{
|
|
"desc":"To facilitate database parameter configuration, GaussDB(DWS) provides the parameter template function. A parameter template contains some common database parameters. You ",
|
|
"product_code":"dws",
|
|
"title":"Managing Parameter Templates",
|
|
"uri":"dws_01_0126.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"85"
|
|
},
|
|
{
|
|
"desc":"If a cluster fails to be created, you can go to the Clusters page of the GaussDB(DWS) management console to view the cluster status and the cause of failure.For details a",
|
|
"product_code":"dws",
|
|
"title":"Managing Clusters That Fail to Be Created",
|
|
"uri":"dws_01_0073.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"code":"86"
|
|
},
|
|
{
|
|
"desc":"No database operation is allowed on a read-only cluster. Cancel the read-only status on the management console.You can cancel the read-only status only when a cluster is ",
|
|
"product_code":"dws",
|
|
"title":"Read-only Status",
|
|
"uri":"dws_01_0035.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"46",
|
|
"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":"dws",
|
|
"title":"Cluster HA",
|
|
"uri":"dws_01_0161.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"",
|
|
"code":"88"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Snapshots",
|
|
"uri":"dws_01_0800.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"88",
|
|
"code":"89"
|
|
},
|
|
{
|
|
"desc":"A snapshot is a full or incremental backup of a GaussDB(DWS) cluster at a specific point in time. It records the current database data and cluster information, including ",
|
|
"product_code":"dws",
|
|
"title":"Overview",
|
|
"uri":"dws_01_0151.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"89",
|
|
"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":"dws",
|
|
"title":"Manual Snapshots",
|
|
"uri":"dws_01_0092.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"89",
|
|
"code":"91"
|
|
},
|
|
{
|
|
"desc":"A snapshot is a complete backup that records point-in-time configuration data and service data of a GaussDB(DWS) cluster. This section describes how to create a snapshot ",
|
|
"product_code":"dws",
|
|
"title":"Manually Creating a Snapshot",
|
|
"uri":"dws_01_0028.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"91",
|
|
"code":"92"
|
|
},
|
|
{
|
|
"desc":"On the Snapshots page, you can delete a snapshot in the Unavailable state or delete an available snapshot to release the storage space.Deleted snapshots cannot be restore",
|
|
"product_code":"dws",
|
|
"title":"Deleting Manual Snapshots",
|
|
"uri":"dws_01_0030.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"91",
|
|
"code":"93"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Automated Snapshots",
|
|
"uri":"dws_01_1013.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"89",
|
|
"code":"94"
|
|
},
|
|
{
|
|
"desc":"Automated snapshots adopt differential incremental backups. The automated snapshot created for the first time is a full backup (base version), and then the system creates",
|
|
"product_code":"dws",
|
|
"title":"Automated Snapshot Overview",
|
|
"uri":"dws_01_10131.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"94",
|
|
"code":"95"
|
|
},
|
|
{
|
|
"desc":"You can select a snapshot type and set one or more automated snapshot policies for a cluster. After an automated snapshot policy is enabled, the system automatically crea",
|
|
"product_code":"dws",
|
|
"title":"Configuring an Automated Snapshot Policy",
|
|
"uri":"dws_01_0089.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"94",
|
|
"code":"96"
|
|
},
|
|
{
|
|
"desc":"This section describes how to copy snapshots that are automatically created for long-term retention.All snapshots are displayed by default. You can copy the snapshots tha",
|
|
"product_code":"dws",
|
|
"title":"Copying Automated Snapshots",
|
|
"uri":"dws_01_0085.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"94",
|
|
"code":"97"
|
|
},
|
|
{
|
|
"desc":"Only GaussDB(DWS) can delete automated snapshots. You cannot delete them manually.GaussDB(DWS) deletes an automated snapshot if:The retention period of the snapshot ends.",
|
|
"product_code":"dws",
|
|
"title":"Deleting an Automated Snapshot",
|
|
"uri":"dws_01_10134.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"94",
|
|
"code":"98"
|
|
},
|
|
{
|
|
"desc":"This section describes how to view snapshot information on the Snapshots page.In the snapshot list, all snapshots are displayed by default. Click next to the snapshot na",
|
|
"product_code":"dws",
|
|
"title":"Viewing Snapshot Information",
|
|
"uri":"dws_01_0021.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"89",
|
|
"code":"99"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Restoration Using a Snapshot",
|
|
"uri":"dws_01_1015.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"89",
|
|
"code":"100"
|
|
},
|
|
{
|
|
"desc":"This section describes how to restore a snapshot to a new cluster when you want to check point-in-time snapshot data of the cluster.When a snapshot is restored to a new c",
|
|
"product_code":"dws",
|
|
"title":"Restoring a Snapshot to a New Cluster",
|
|
"uri":"dws_01_0029.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"100",
|
|
"code":"101"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Cluster DR",
|
|
"uri":"dws_01_0080.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"88",
|
|
"code":"102"
|
|
},
|
|
{
|
|
"desc":"A homogeneous GaussDB(DWS) DR cluster is deployed in another AZ. If the production cluster fails to provide read and write services due to natural disasters in the specif",
|
|
"product_code":"dws",
|
|
"title":"DR Overview",
|
|
"uri":"dws_01_00081.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"102",
|
|
"code":"103"
|
|
},
|
|
{
|
|
"desc":"You can create a DR task only when the cluster is in the Available or Unbalanced state.Type: Cross-AZ DRName: Enter 4 to 64 case-insensitive characters, starting with a l",
|
|
"product_code":"dws",
|
|
"title":"Creating a DR Task",
|
|
"uri":"dws_01_00082.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"102",
|
|
"code":"104"
|
|
},
|
|
{
|
|
"desc":"On the page that is displayed, view the following information:DR Information: You can view the DR ID, DR name, DR creation time, and DR status.Production Cluster Informat",
|
|
"product_code":"dws",
|
|
"title":"Viewing DR Information",
|
|
"uri":"dws_01_00083.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"102",
|
|
"code":"105"
|
|
},
|
|
{
|
|
"desc":"The DR status will change to Starting. The process will take some time. After the task is started, the DR status will change to Running.You can start a DR task that is in",
|
|
"product_code":"dws",
|
|
"title":"DR Management",
|
|
"uri":"dws_01_00084.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"102",
|
|
"code":"106"
|
|
},
|
|
{
|
|
"desc":"After scale-out, the number of DNs in the production cluster must be the same as that in the DR cluster.",
|
|
"product_code":"dws",
|
|
"title":"Mutually Exclusive DR Cases",
|
|
"uri":"dws_01_00085.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"102",
|
|
"code":"107"
|
|
},
|
|
{
|
|
"desc":"If the internal IP address or EIP of a CN is used to connect to a cluster, the failure of this CN will lead to cluster connection failure. If a private domain name is use",
|
|
"product_code":"dws",
|
|
"title":"Associating and Disassociating ELB",
|
|
"uri":"dws_01_0822.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"88",
|
|
"code":"108"
|
|
},
|
|
{
|
|
"desc":"After a cluster is created, the number of required CNs varies with service requirements. The CN management function enables you to adjust the number of CNs in the cluster",
|
|
"product_code":"dws",
|
|
"title":"CNs",
|
|
"uri":"dws_01_7115.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"88",
|
|
"code":"109"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Monitoring and Alarms",
|
|
"uri":"dws_01_0162.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"",
|
|
"code":"110"
|
|
},
|
|
{
|
|
"desc":"This section describes how to check cluster metrics on Cloud Eye. By monitoring cluster running metrics, you can identify the time when the database cluster is abnormal a",
|
|
"product_code":"dws",
|
|
"title":"Monitoring Clusters Using Cloud Eye",
|
|
"uri":"dws_01_0022.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"110",
|
|
"code":"111"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Databases Monitoring",
|
|
"uri":"dws_01_00014.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"110",
|
|
"code":"112"
|
|
},
|
|
{
|
|
"desc":"DMS is provided by GaussDB(DWS) to ensure the fast and stable running of databases. It collects, monitors, and analyzes the disk, network, and OS metric data used by the ",
|
|
"product_code":"dws",
|
|
"title":"Database Monitoring Overview",
|
|
"uri":"dws_01_00131.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"112",
|
|
"code":"113"
|
|
},
|
|
{
|
|
"desc":"You can check the status and available resources of a cluster and learn about its real-time resource consumption through the GaussDB(DWS) monitoring items.Table 1 describ",
|
|
"product_code":"dws",
|
|
"title":"Monitoring Metrics",
|
|
"uri":"dws_01_00136.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"112",
|
|
"code":"114"
|
|
},
|
|
{
|
|
"desc":"On the page that is displayed, you can view the cluster status, real-time resource consumption, top SQL statements, cluster resource consumption, and key database metrics",
|
|
"product_code":"dws",
|
|
"title":"Cluster Overview",
|
|
"uri":"dws_01_00132.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"112",
|
|
"code":"115"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Monitoring",
|
|
"uri":"dws_01_00133.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"112",
|
|
"code":"116"
|
|
},
|
|
{
|
|
"desc":"On the page that is displayed, view the real-time consumption of nodes, memory, disks, disk I/O, and network I/O.On the Overview tab page, you can view the key resources ",
|
|
"product_code":"dws",
|
|
"title":"Node Monitoring",
|
|
"uri":"dws_01_1331.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"116",
|
|
"code":"117"
|
|
},
|
|
{
|
|
"desc":"The Performance Monitoring page displays the resource consumption trends of clusters and databases.You can configure monitoring views by customizing monitoring panels. Mo",
|
|
"product_code":"dws",
|
|
"title":"Performance Monitoring",
|
|
"uri":"dws_01_1337.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"116",
|
|
"code":"118"
|
|
},
|
|
{
|
|
"desc":"The Database Monitoring page displays the real-time and historical resource consumption a database.You can select a database and check its resource usage. For details, se",
|
|
"product_code":"dws",
|
|
"title":"Database Monitoring",
|
|
"uri":"dws_01_1332.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"116",
|
|
"code":"119"
|
|
},
|
|
{
|
|
"desc":"The Session Monitoring page displays the session-level real-time database query statistics. You can also select and terminate a session.You can browse the query statistic",
|
|
"product_code":"dws",
|
|
"title":"Session Monitoring",
|
|
"uri":"dws_01_1333.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"116",
|
|
"code":"120"
|
|
},
|
|
{
|
|
"desc":"The Query Monitoring page displays the real-time information about all queries that are running in a cluster and the historical information about the queries that have be",
|
|
"product_code":"dws",
|
|
"title":"Query Monitoring",
|
|
"uri":"dws_01_1334.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"116",
|
|
"code":"121"
|
|
},
|
|
{
|
|
"desc":"On the Instance Monitoring page, you can view the real-time and historical information about detected slow instances.DMS can automatically configure and start the slow in",
|
|
"product_code":"dws",
|
|
"title":"Instance Monitoring",
|
|
"uri":"dws_01_1338.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"116",
|
|
"code":"122"
|
|
},
|
|
{
|
|
"desc":"On the Load Monitoring page, you can view the real-time and historical resource consumption of workload queues.The DMS displays the user-defined workload queue name, real",
|
|
"product_code":"dws",
|
|
"title":"Load Monitoring",
|
|
"uri":"dws_01_1339.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"116",
|
|
"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":"dws",
|
|
"title":"Utilities",
|
|
"uri":"dws_01_00175.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"112",
|
|
"code":"124"
|
|
},
|
|
{
|
|
"desc":"To enable SQL diagnosis, enable monitoring on real-time and historical queries on the Queries and History tabs, respectively. For details, see .Query IDDatabaseSchema Nam",
|
|
"product_code":"dws",
|
|
"title":"SQL Diagnosis",
|
|
"uri":"dws_01_00134.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"124",
|
|
"code":"125"
|
|
},
|
|
{
|
|
"desc":"You can audit DDL to check DDL metadata, identify inappropriate table definitions, and locate performance problems.This feature is supported only in cluster version 8.1.2",
|
|
"product_code":"dws",
|
|
"title":"DDL Audit",
|
|
"uri":"dws_01_01752.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"124",
|
|
"code":"126"
|
|
},
|
|
{
|
|
"desc":"The Monitoring page displays the collection period and data aging period of monitoring metrics.The cluster monitoring function is enabled by default.Disable the function ",
|
|
"product_code":"dws",
|
|
"title":"Settings",
|
|
"uri":"dws_01_00135.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"112",
|
|
"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":"dws",
|
|
"title":"Typical Scenarios",
|
|
"uri":"dws_01_00137.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"112",
|
|
"code":"128"
|
|
},
|
|
{
|
|
"desc":"The execution of SQL statements takes a long time, resulting in great resource consumption.If the execution efficiency of SQL statements is low, optimization suggestions ",
|
|
"product_code":"dws",
|
|
"title":"SQL Diagnosis",
|
|
"uri":"dws_01_01372.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"128",
|
|
"code":"129"
|
|
},
|
|
{
|
|
"desc":"Time-consuming SQL statements exist.On the Top 5 Time-Consuming Queries page directed from the Cluster Overview page, record the change of top 5 time-consuming queries.An",
|
|
"product_code":"dws",
|
|
"title":"Top Time-Consuming SQL Statements Viewing",
|
|
"uri":"dws_01_01373.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"128",
|
|
"code":"130"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Alarms",
|
|
"uri":"dws_01_1240.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"110",
|
|
"code":"131"
|
|
},
|
|
{
|
|
"desc":"Alarm management includes viewing and configuring alarm rules and subscribing to alarm information. Alarm rules display alarm statistics and details of the past week for ",
|
|
"product_code":"dws",
|
|
"title":"Alarm Management",
|
|
"uri":"dws_01_1241.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"131",
|
|
"code":"132"
|
|
},
|
|
{
|
|
"desc":"Concepts related to threshold alarmsAlarm rule: consists of the alarm rule name, rule description, clusters associated with the rule, alarm policy triggering relationship",
|
|
"product_code":"dws",
|
|
"title":"Alarm Rules",
|
|
"uri":"dws_01_1242.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"131",
|
|
"code":"133"
|
|
},
|
|
{
|
|
"desc":"You can subscribe to GaussDB(DWS) alarm notifications to receive notifications by SMS message, email, or application when an alarm of a specified severity is generated.To",
|
|
"product_code":"dws",
|
|
"title":"Alarm Subscriptions",
|
|
"uri":"dws_01_1243.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"131",
|
|
"code":"134"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Cluster Security Management",
|
|
"uri":"dws_01_0700.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"",
|
|
"code":"135"
|
|
},
|
|
{
|
|
"desc":"By default, the administrator specified when you create a GaussDB(DWS) cluster is the database system administrator. The administrator can create other users and view the",
|
|
"product_code":"dws",
|
|
"title":"Configuring Separation of Permissions",
|
|
"uri":"dws_01_0074.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"135",
|
|
"code":"136"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Permissions",
|
|
"uri":"dws_01_0145.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"135",
|
|
"code":"137"
|
|
},
|
|
{
|
|
"desc":"An RBAC policy consists of a Version, a Statement, and Depends.When selecting a policy for a user group, click below the policy to view the details of the policy. The DW",
|
|
"product_code":"dws",
|
|
"title":"RBAC Syntax of RBAC Policies",
|
|
"uri":"dws_01_0150.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"137",
|
|
"code":"138"
|
|
},
|
|
{
|
|
"desc":"GaussDB(DWS) protects mission-critical operations. If you want to perform a mission-critical operation on the management console, you must enter a credential for identity",
|
|
"product_code":"dws",
|
|
"title":"Protection for Mission-Critical Operations",
|
|
"uri":"dws_01_0701.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"135",
|
|
"code":"139"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Audit Logs",
|
|
"uri":"dws_01_0119.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"",
|
|
"code":"140"
|
|
},
|
|
{
|
|
"desc":"Tenant database audit logs:GaussDB(DWS) allows you to record the audit logs of specific operations, involving audit log retention policies, unauthorized access, as well a",
|
|
"product_code":"dws",
|
|
"title":"Overview",
|
|
"uri":"dws_01_1911.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"140",
|
|
"code":"141"
|
|
},
|
|
{
|
|
"desc":"This section is organized as follows:Enabling CTSDisabling the Audit Log FunctionKey OperationsViewing TracesA tracker will be automatically created after CTS is enabled.",
|
|
"product_code":"dws",
|
|
"title":"Viewing Audit Logs of Key Operations on the Management Console",
|
|
"uri":"dws_01_0118.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"140",
|
|
"code":"142"
|
|
},
|
|
{
|
|
"desc":"Database audit logs are configured on the Security Settings page. You can change security settings only when the cluster status is Available and Unbalanced, and Task Info",
|
|
"product_code":"dws",
|
|
"title":"Configuring the Database Audit Logs",
|
|
"uri":"dws_01_0075.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"140",
|
|
"code":"143"
|
|
},
|
|
{
|
|
"desc":"GaussDB(DWS) records information (audit logs) about connections and user activities in your database. With the information, you can monitor the database to ensure securit",
|
|
"product_code":"dws",
|
|
"title":"Dumping the Database Audit Logs",
|
|
"uri":"dws_01_0142.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"140",
|
|
"code":"144"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"FAQs",
|
|
"uri":"dws_03_0061.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"",
|
|
"code":"145"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"General Problems",
|
|
"uri":"dws_03_0001.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"145",
|
|
"code":"146"
|
|
},
|
|
{
|
|
"desc":"Much data (orders, stocks, materials, and payments) is generated in the business operation systems and background (transactional) database of enterprises.Decision makers ",
|
|
"product_code":"dws",
|
|
"title":"Why Are Data Warehouses Necessary?",
|
|
"uri":"dws_03_0003.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"147"
|
|
},
|
|
{
|
|
"desc":"The Hadoop big data platform can be regarded as a next-generation data warehousing system. It has the characteristics of modern data warehouses and is widely used by ente",
|
|
"product_code":"dws",
|
|
"title":"What Are the Differences Between a Data Warehouse and the Hadoop Big Data Platform?",
|
|
"uri":"dws_03_0005.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"148"
|
|
},
|
|
{
|
|
"desc":"Conventional data warehouses are not practical for smaller enterprises due to high cost, time-consuming device and system selection and procurement, and complex scale-out",
|
|
"product_code":"dws",
|
|
"title":"Why Should I Use Public Cloud GaussDB(DWS)?",
|
|
"uri":"dws_03_0006.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"149"
|
|
},
|
|
{
|
|
"desc":"Both allow you to run conventional relational databases on the cloud and transfer database management loads. RDS databases are useful for OLTP, reporting, and analysis, b",
|
|
"product_code":"dws",
|
|
"title":"Should I Choose Public Cloud GaussDB(DWS) or RDS?",
|
|
"uri":"dws_03_0009.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"150"
|
|
},
|
|
{
|
|
"desc":"MRS works better with big data processing frameworks such as Apache Spark, Hadoop, and HBase, to process and analyze ultra-large data sets through custom code. It allows ",
|
|
"product_code":"dws",
|
|
"title":"When Should I Use GaussDB(DWS) and MRS?",
|
|
"uri":"dws_03_0010.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"151"
|
|
},
|
|
{
|
|
"desc":"No. Although SQL on OBS of GaussDB(DWS) can be used for GaussDB(DWS) and OBS data query, it cannot replace the processing frameworks of MRS.Apart from SQL query, MRS also",
|
|
"product_code":"dws",
|
|
"title":"Can GaussDB(DWS) SQL on OBS Replace MRS?",
|
|
"uri":"dws_03_0011.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"152"
|
|
},
|
|
{
|
|
"desc":"GaussDB(DWS) and Hive have different functions in the following aspects:Hive is a data warehouse based on Hadoop MapReduce. GaussDB(DWS) is a data warehouse based on Post",
|
|
"product_code":"dws",
|
|
"title":"What Are the Differences Between GaussDB(DWS) and Hive in Functions?",
|
|
"uri":"dws_03_0037.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"153"
|
|
},
|
|
{
|
|
"desc":"For cloud services, quotas limit the number of resources available to users. If you need more, submit a service ticket to increase your quotas. Once approved, we will upd",
|
|
"product_code":"dws",
|
|
"title":"What Is the User Quota?",
|
|
"uri":"dws_03_0034.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"154"
|
|
},
|
|
{
|
|
"desc":"Users and roles are shared within the entire cluster, but their data is not shared. That is, a user can connect to any database, but after the connection is successful, a",
|
|
"product_code":"dws",
|
|
"title":"What Are the Differences Between Users and Roles?",
|
|
"uri":"dws_03_0067.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"155"
|
|
},
|
|
{
|
|
"desc":"A region and availability zone (AZ) identify the location of a data center. You can create resources in regions and AZs.A region is a physical data center. Each region is",
|
|
"product_code":"dws",
|
|
"title":"Regions and AZs",
|
|
"uri":"dws_03_0052.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"156"
|
|
},
|
|
{
|
|
"desc":"Yes. In the big data era, data has become a core asset. The public cloud will adhere to the commitment made over the years that we do not touch your applications or data,",
|
|
"product_code":"dws",
|
|
"title":"Is My Data Secure in GaussDB(DWS)?",
|
|
"uri":"dws_03_0022.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"157"
|
|
},
|
|
{
|
|
"desc":"GaussDB(DWS) uses IAM and VPC to control user access and isolate cluster network. Cluster access is over SSL and cipher suite. Additionally, GaussDB(DWS) supports two-way",
|
|
"product_code":"dws",
|
|
"title":"How Is GaussDB(DWS) Secured?",
|
|
"uri":"dws_03_0023.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"158"
|
|
},
|
|
{
|
|
"desc":"Yes. When a data warehouse cluster is created, its security group cannot be changed. However, you can add, delete, or modify rules of the current security group.To edit t",
|
|
"product_code":"dws",
|
|
"title":"Can I Modify the Security Group of a GaussDB(DWS) Cluster?",
|
|
"uri":"dws_03_0053.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"159"
|
|
},
|
|
{
|
|
"desc":"The evolving Internet and IoT produce massive volumes of data. This data needs to be managed, using concepts like database, data warehouse, data lake, and lakehouse. Here",
|
|
"product_code":"dws",
|
|
"title":"What Is a Database/Data Warehouse/Data Lake/Lakehouse?",
|
|
"uri":"dws_03_2121.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"146",
|
|
"code":"160"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Cluster Management",
|
|
"uri":"dws_03_0029.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"145",
|
|
"code":"161"
|
|
},
|
|
{
|
|
"desc":"Check that you have enough quota for creating the cluster.Call the Customer Hotline for support.Telephone:Germany: 0800 330 44 44International: +800 44556600",
|
|
"product_code":"dws",
|
|
"title":"What Do I Do If Creating a GaussDB(DWS) Cluster Failed?",
|
|
"uri":"dws_03_0016.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"161",
|
|
"code":"162"
|
|
},
|
|
{
|
|
"desc":"Cluster patching or upgrading is automatic because GaussDB(DWS) upgrades its own version.For service patch:Duration: less than 10 minutesImpact on services: 1 to 3 minute",
|
|
"product_code":"dws",
|
|
"title":"How Can I Upgrade or Downgrade GaussDB(DWS)?",
|
|
"uri":"dws_03_0031.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"161",
|
|
"code":"163"
|
|
},
|
|
{
|
|
"desc":"After you delete data stored in GaussDB(DWS) data warehouses, dirty data may be generated from the unreleased disk space. This results in space waste and deteriorates sna",
|
|
"product_code":"dws",
|
|
"title":"How Can I Clear and Reclaim Storage?",
|
|
"uri":"dws_03_0033.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"161",
|
|
"code":"164"
|
|
},
|
|
{
|
|
"desc":"If you do not run VACUUM to clear and reclaim the storage space before the scale-out, the data deleted from GaussDB(DWS) may not free up the occupied disk space.During th",
|
|
"product_code":"dws",
|
|
"title":"Why Did the Used Storage Reduce After Scale-out?",
|
|
"uri":"dws_03_0054.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"161",
|
|
"code":"165"
|
|
},
|
|
{
|
|
"desc":"You can view the used capacity of a cluster CPU, memory, and disks on the Cloud Eye management console. Perform the following steps to view the information:",
|
|
"product_code":"dws",
|
|
"title":"How Do I View Node Metrics (CPU, Memory, and Disk Usage)?",
|
|
"uri":"dws_03_0104.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"161",
|
|
"code":"166"
|
|
},
|
|
{
|
|
"desc":"A cluster with three data nodes of 320 GB each has a total capacity of 960 GB. When 1 GB data is stored, GaussDB(DWS) stores 1 GB data on two nodes due to duplication, a ",
|
|
"product_code":"dws",
|
|
"title":"How Is the Disk Space or Capacity of GaussDB(DWS) Calculated?",
|
|
"uri":"dws_03_0090.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"161",
|
|
"code":"167"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Database Connections",
|
|
"uri":"dws_03_0024.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"145",
|
|
"code":"168"
|
|
},
|
|
{
|
|
"desc":"Yes, but GaussDB(DWS) clients and drivers are recommended. Unlike open-source PostgreSQL clients and drivers, GaussDB(DWS) clients and drivers have two key advantages:Sec",
|
|
"product_code":"dws",
|
|
"title":"Does GaussDB(DWS) Support Third-Party Clients and JDBC and ODBC Drivers?",
|
|
"uri":"dws_03_0017.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"168",
|
|
"code":"169"
|
|
},
|
|
{
|
|
"desc":"No, direct access is not supported. VMs at the bottom layer of GaussDB(DWS) serve as the compute nodes for data analysis. Access cluster databases using the private or pu",
|
|
"product_code":"dws",
|
|
"title":"Can I Connect to GaussDB(DWS) Cluster Nodes Using SSH?",
|
|
"uri":"dws_03_0040.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"168",
|
|
"code":"170"
|
|
},
|
|
{
|
|
"desc":"Check:Whether the cluster status is normal.Whether the connection command, username, password, IP address, and port are correct.Whether the operating system type and vers",
|
|
"product_code":"dws",
|
|
"title":"What Should I Do If I Cannot Connect to a Data Warehouse Cluster?",
|
|
"uri":"dws_03_0014.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"168",
|
|
"code":"171"
|
|
},
|
|
{
|
|
"desc":"After the EIP is unbound, the network may be disconnected. However, the TCP layer does not detect a faulty physical connection in time due to keepalive settings. As a res",
|
|
"product_code":"dws",
|
|
"title":"Why Was I Not Notified of Failure Unbinding the EIP When GaussDB(DWS) Is Connected Over the Internet?",
|
|
"uri":"dws_03_0025.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"168",
|
|
"code":"172"
|
|
},
|
|
{
|
|
"desc":"Resources in different AZs of the same region can communicate with each other directly if they belong to the same VPC.For resources in different AZs of the same region bu",
|
|
"product_code":"dws",
|
|
"title":"How Can a Data Warehouse and a Database in Different AZs of the Same Region Communicate?",
|
|
"uri":"dws_03_0169.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"168",
|
|
"code":"173"
|
|
},
|
|
{
|
|
"desc":"If BI applications, client ECS, and DGC need to communicate with GaussDB(DWS), they must be in the same region and VPC as the GaussDB(DWS) cluster (different subnets are ",
|
|
"product_code":"dws",
|
|
"title":"Do I Need the Same VPC and Subnet to Connect to a GaussDB(DWS) Cluster?",
|
|
"uri":"dws_03_2125.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"168",
|
|
"code":"174"
|
|
},
|
|
{
|
|
"desc":"You can also log in to the VPC management console to manually create a security group. Then, go back to the page for creating data warehouse clusters, click the button n",
|
|
"product_code":"dws",
|
|
"title":"How Do I Configure a Whitelist to Protect Clusters Available Through a Public IP Address?",
|
|
"uri":"dws_03_2130.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"168",
|
|
"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":"dws",
|
|
"title":"Data Import and Export",
|
|
"uri":"dws_03_0026.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"145",
|
|
"code":"176"
|
|
},
|
|
{
|
|
"desc":"The file formats supported by OBS and GDS foreign tables are as follows:OBS file formats: CSV, TEXT, ORC, and CARBONDATA. The default format is TEXT.GDS file formats: CSV",
|
|
"product_code":"dws",
|
|
"title":"What Are the Differences Between Data Formats Supported by OBS and GDS Foreign Tables?",
|
|
"uri":"dws_03_0018.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"176",
|
|
"code":"177"
|
|
},
|
|
{
|
|
"desc":"GaussDB(DWS) supports efficient data import from multiple data sources. The following lists typical data import modes. For details, see \"Import Modes\" in the Data Warehou",
|
|
"product_code":"dws",
|
|
"title":"How Can I Import Data to GaussDB(DWS)?",
|
|
"uri":"dws_03_0027.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"176",
|
|
"code":"178"
|
|
},
|
|
{
|
|
"desc":"Each node in a data warehouse cluster has a default storage capacity of 160 GB, 256 GB, 1.6 TB, 1.8 TB, or 13 TB. A cluster can house 3 to 32 nodes and the total storage ",
|
|
"product_code":"dws",
|
|
"title":"How Much Service Data Can a Data Warehouse Store?",
|
|
"uri":"dws_03_0028.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"176",
|
|
"code":"179"
|
|
},
|
|
{
|
|
"desc":"GaussDB(DWS) is a fully managed service on the cloud. Users cannot log in to the background to import or export data by using COPY, so the COPY syntax is disabled. You ar",
|
|
"product_code":"dws",
|
|
"title":"How Do I Use \\Copy to Import and Export Data?",
|
|
"uri":"dws_03_0073.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"176",
|
|
"code":"180"
|
|
},
|
|
{
|
|
"desc":"No, GaussDB(DWS) does not support OBS data import or export across regions. The GaussDB(DWS) cluster and OBS must be in the same region.",
|
|
"product_code":"dws",
|
|
"title":"Can I Export GaussDB(DWS) Data from/to OBS Across Regions?",
|
|
"uri":"dws_03_0102.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"176",
|
|
"code":"181"
|
|
},
|
|
{
|
|
"desc":"To import heterogeneous data to GaussDB(DWS), use CDM to migrate the entire MySQL or SQL Server database. Or migrate the entire GaussDB(DWS) database to another GaussDB(D",
|
|
"product_code":"dws",
|
|
"title":"How Do I Import GaussDB(DWS)/Oracle/MySQL/SQL Server Data to GaussDB(DWS) (Whole Database Migration)?",
|
|
"uri":"dws_03_0074.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"176",
|
|
"code":"182"
|
|
},
|
|
{
|
|
"desc":"No. The GDS server and GaussDB(DWS) can only communicate with each other on the intranet. Each DN in the GaussDB(DWS) cluster is used to connect to the GDS server in para",
|
|
"product_code":"dws",
|
|
"title":"Can I Import Data over the Public/External Network Using GDS?",
|
|
"uri":"dws_03_0105.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"176",
|
|
"code":"183"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Account, Password, and Permissions",
|
|
"uri":"dws_03_0110.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"145",
|
|
"code":"184"
|
|
},
|
|
{
|
|
"desc":"To change the password of the database administrator dbadmin, log in to the console and choose More > Reset Password in cluster row.For security, the following two parame",
|
|
"product_code":"dws",
|
|
"title":"How Do I Change My Expired Database Password?",
|
|
"uri":"dws_03_0092.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"184",
|
|
"code":"185"
|
|
},
|
|
{
|
|
"desc":"To view the user list, query the PG_USER view.SELECT * FROM pg_user;To view user attributes, query the PG_AUTHID system catalog.SELECT * FROM pg_authid;Query the permissi",
|
|
"product_code":"dws",
|
|
"title":"How Do I View All Database Users and Their Permissions?",
|
|
"uri":"dws_03_0095.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"184",
|
|
"code":"186"
|
|
},
|
|
{
|
|
"desc":"This section describes how to grant users the SELECT, INSERT, UPDATE, or full permissions for tables.Assume there are users u1, u2, u3, u4, and u5 and five schemas named ",
|
|
"product_code":"dws",
|
|
"title":"How Do I Grant Table Permissions to a User?",
|
|
"uri":"dws_03_0197.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"184",
|
|
"code":"187"
|
|
},
|
|
{
|
|
"desc":"This section describes how to grant the query permission for a schema as an example. For more information, see \"How Do I Grant Table Permissions to a User?\" in FAQ. You ",
|
|
"product_code":"dws",
|
|
"title":"How Do I Grant Schema Permissions to a User?",
|
|
"uri":"dws_03_0196.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"184",
|
|
"code":"188"
|
|
},
|
|
{
|
|
"desc":"GaussDB(DWS) provides an implicitly defined group public that contains all roles. By default, all new users and roles have the permissions of public. To revoke permission",
|
|
"product_code":"dws",
|
|
"title":"How Do I Revoke the CONNECT ON DATABASE Permission from a User?",
|
|
"uri":"dws_03_0195.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"184",
|
|
"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":"dws",
|
|
"title":"Database Usage",
|
|
"uri":"dws_03_0065.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"145",
|
|
"code":"190"
|
|
},
|
|
{
|
|
"desc":"No, you only need to set the primary key. By default, the first column of the primary key is selected as the distribution key. If both are set, the primary key must conta",
|
|
"product_code":"dws",
|
|
"title":"Do I Need to Set a Distribution Key After Setting a Primary Key?",
|
|
"uri":"dws_03_0075.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"190",
|
|
"code":"191"
|
|
},
|
|
{
|
|
"desc":"Yes.GaussDB(DWS) is compatible with PostgreSQL stored procedures. For details, see \"Stored Procedures\" in the Developer Guide.",
|
|
"product_code":"dws",
|
|
"title":"Is GaussDB(DWS) Compatible with PostgreSQL Stored Procedures?",
|
|
"uri":"dws_03_0076.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"190",
|
|
"code":"192"
|
|
},
|
|
{
|
|
"desc":"Partitioned table: Partitioning refers to splitting what is logically one large table into smaller physical pieces based on specific schemes. The table based on the logic",
|
|
"product_code":"dws",
|
|
"title":"What Are Partitioned Tables, Partitions, and Partition Keys?",
|
|
"uri":"dws_03_0064.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"190",
|
|
"code":"193"
|
|
},
|
|
{
|
|
"desc":"You are advised to use the Data Studio graphical client to export table data. You can export data from:A specific tableAll tables in a schemaAll tables in a databaseFor d",
|
|
"product_code":"dws",
|
|
"title":"How Can I Export the Table Structure?",
|
|
"uri":"dws_03_0078.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"190",
|
|
"code":"194"
|
|
},
|
|
{
|
|
"desc":"You can use pg_tables and pg_views to query all table information and views in a database. Example:For details about the returned columns, see \"PG_TABLES\" and \"PG_VIEWS\" ",
|
|
"product_code":"dws",
|
|
"title":"How Can I Export All Tables and Views from a Database?",
|
|
"uri":"dws_03_0079.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"190",
|
|
"code":"195"
|
|
},
|
|
{
|
|
"desc":"In GaussDB(DWS), the encoding format of a database cannot be changed. You need to create another database in the required format. For globalization purposes, set the enco",
|
|
"product_code":"dws",
|
|
"title":"How Can I Change the Character Encoding Format of a Database?",
|
|
"uri":"dws_03_0085.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"190",
|
|
"code":"196"
|
|
},
|
|
{
|
|
"desc":"Yes. TRUNCATE is more efficient than DELETE for deleting massive data.For details, see \"TRUNCATE\" in the Data Warehouse Service (DWS) Developer Guide.TRUNCATE quickly rem",
|
|
"product_code":"dws",
|
|
"title":"How Can I Delete Table Data Efficiently?",
|
|
"uri":"dws_03_0088.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"190",
|
|
"code":"197"
|
|
},
|
|
{
|
|
"desc":"Yes. For tables that involve frequent add, delete, or modify operations, perform VACUUM FULL and ANALYZE to reclaim the disk space occupied by updated or deleted data, pr",
|
|
"product_code":"dws",
|
|
"title":"Do I Need to Run VACUUM FULL and ANALYZE on Common Tables Periodically?",
|
|
"uri":"dws_03_0089.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"190",
|
|
"code":"198"
|
|
},
|
|
{
|
|
"desc":"To query information about OBS/GDS foreign tables such as OBS paths, run the following statement:The following uses table traffic_data.GCJL_OBS as an example:",
|
|
"product_code":"dws",
|
|
"title":"How Do I View Foreign Table Information?",
|
|
"uri":"dws_03_2124.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"190",
|
|
"code":"199"
|
|
},
|
|
{
|
|
"desc":"In a data warehouse database, you need to carefully choose distribution columns for large tables, because they can affect your database and query performance. If an impro",
|
|
"product_code":"dws",
|
|
"title":"How Do I Change Distribution Columns?",
|
|
"uri":"dws_03_2126.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"190",
|
|
"code":"200"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Database Performance",
|
|
"uri":"dws_03_0035.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"145",
|
|
"code":"201"
|
|
},
|
|
{
|
|
"desc":"When a database is used for a period of time, the table data increases as services grow, or the table data is frequently added, deleted, or modified. This results in bloa",
|
|
"product_code":"dws",
|
|
"title":"Why Is SQL Execution Slow After Long GaussDB(DWS) Usage?",
|
|
"uri":"dws_03_0071.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"201",
|
|
"code":"202"
|
|
},
|
|
{
|
|
"desc":"Due to the MPP architecture limitation of GaussDB(DWS), a few PostgreSQL methods and functions cannot be pushed to DNs for execution. As a result, performance bottlenecks",
|
|
"product_code":"dws",
|
|
"title":"Why Does GaussDB(DWS) Perform Worse Than a Single-Server Database in Extreme Scenarios?",
|
|
"uri":"dws_03_0036.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"201",
|
|
"code":"203"
|
|
},
|
|
{
|
|
"desc":"The top SQL feature lets you view SQL statements executed in a specified period (in real time and historical). SQL statements of the current CN or all CNs are available f",
|
|
"product_code":"dws",
|
|
"title":"How Can I View SQL Execution Records of A Certain Period When Service Read and Write Are Blocked?",
|
|
"uri":"dws_03_0100.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"201",
|
|
"code":"204"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Logs",
|
|
"uri":"dws_03_0068.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"145",
|
|
"code":"205"
|
|
},
|
|
{
|
|
"desc":"GaussDB(DWS) allows you to record the audit logs of specific operations, involving audit log retention policies, unauthorized access, as well as DML, DDL, SELECT and COPY",
|
|
"product_code":"dws",
|
|
"title":"How Can I View Database Operation Logs?",
|
|
"uri":"dws_03_0082.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"205",
|
|
"code":"206"
|
|
},
|
|
{
|
|
"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":"dws",
|
|
"title":"Change History",
|
|
"uri":"dws_01_0070.html",
|
|
"doc_type":"usermanual",
|
|
"p_code":"",
|
|
"code":"207"
|
|
}
|
|
] |