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          • Logging Time - GaussDB(DWS)

            Logging Time - GaussDB(DWS)

            Type: USERSET Value range: a string Default value: OBS, HADOOP and REMOTE_DATANODE are enabled. MD is disabled. You can run the SHOW profile_logging_module command to view the value.

            Help > GaussDB(DWS) > Developer Guide (9.1.0.x) > GUC Parameters of the GaussDB(DWS) Database > Error Reporting and Logging
          • Migrating Data Between DWS Clusters Using GDS - GaussDB(DWS)

            Migrating Data Between DWS Clusters Using GDS - GaussDB(DWS)

            Table 1 Regions and OBS bucket names Region OBS Bucket CN North-Beijing1 dws-demo-cn-north-1 CN North-Beijing2 dws-demo-cn-north-2 CN North-Beijing4 dws-demo-cn-north-4 CN North-Ulanqab1 dws-demo-cn-north-9 CN East-Shanghai1 dws-demo-cn-east-3 CN East-Shanghai2 dws-demo-cn-east-2

            Help > GaussDB(DWS) > Best Practices > Data Migration
          • COPY - GaussDB(DWS)

            COPY - GaussDB(DWS)

            SERVER Specifies the OBS server, which takes effect only when COPY TO is used. filename is a path on OBS, indicating that data is exported to OBS. Name of the created OBS server. BOM Specifies whether to add the UTF-8 BOM field to the exported CSV file.

            Help > GaussDB(DWS) > SQL Syntax Reference (9.1.0.x) > DML Syntax
          • Logging Content - GaussDB(DWS)

            Logging Content - GaussDB(DWS)

            ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ALL,on(),off(DFS,GUC,HDFS,ORC,SLRU,MEM_CTL,AUTOVAC,ANALYZE,CACHE,ADIO,SSL,GDS,TBLSPC,WLM,SPACE,OBS

            Help > GaussDB(DWS) > Developer Guide (9.1.0.x) > GUC Parameters of the GaussDB(DWS) Database > Error Reporting and Logging
          • GaussDB(DWS) PL/Java Functions - GaussDB(DWS)

            GaussDB(DWS) PL/Java Functions - GaussDB(DWS)

            It is mandatory. source_filepath: file path on the OBS server. Only .jar files are supported. accesskey: key obtained for accessing the OBS service. It is mandatory. secret_key: secret key obtained for the OBS service.

            Help > GaussDB(DWS) > Developer Guide (9.1.0.x) > GaussDB(DWS) User-Defined Functions
          • Accessing Hudi Tables on MRS - GaussDB(DWS)

            Accessing Hudi Tables on MRS - GaussDB(DWS)

            The only difference in usage compared to OBS is when creating data sources. Accessing Multiple MRS Clusters Concurrently Due to JDK restrictions, one JVM can store only one Kerberos configuration file at a time.

            Help > GaussDB(DWS) > Developer Guide (9.1.0.x) > GaussDB(DWS) Data Query > SQL on Hudi
          • Audit and Logging - GaussDB(DWS)

            Audit and Logging - GaussDB(DWS)

            In addition, database audit logs can be dumped to OBS to ensure the log retention period. For details, see Viewing Database Audit Logs. Parent Topic: Security

            Help > GaussDB(DWS) > Service Overview > Security
          • ALTER DATABASE - GaussDB(DWS)

            ALTER DATABASE - GaussDB(DWS)

            Change the database owner. 1 2 ALTER DATABASE database_name OWNER TO new_owner; Change the default tablespace of the database. 1 2 ALTER DATABASE database_name SET TABLESPACE new_tablespace; The current tablespaces cannot be changed to OBS tablespaces.

            Help > GaussDB(DWS) > SQL Syntax Reference (9.1.0.x) > DDL Syntax
          • Function Overview - GaussDB(DWS)

            Function Overview - GaussDB(DWS)

            based on the export mode and data format set in the OBS foreign table.

            Help > GaussDB(DWS) > Function Overview
          • ALTER EXTERNAL SCHEMA - GaussDB(DWS)

            ALTER EXTERNAL SCHEMA - GaussDB(DWS)

            An existing foreign server whose type is lf, dli, obs, or hdfs. CATALOG Catalog to be accessed in LakeFormation. - OPTIONS Specifies parameters of foreign table data. This is supported only by 8.3.0 and later versions. dli_project_id: project ID of DLI.

            Help > GaussDB(DWS) > SQL Syntax Reference (9.1.0.x) > DDL Syntax
          • Data Sharing Functions - GaussDB(DWS)

            Data Sharing Functions - GaussDB(DWS)

            Once established, the KV cache of the consumer VW periodically synchronizes the SST file incrementally from the OBS cudesc snapshot directory of the producer to the local host. This allows tables in the producer VW to be queried across VWs in the consumer VM.

            Help > GaussDB(DWS) > SQL Syntax Reference (9.1.0.x) > Functions and Operators > Storage-Compute Decoupling Functions
          • GAUSS-01711 -- GAUSS-01720 - GaussDB(DWS)

            GAUSS-01711 -- GAUSS-01720 - GaussDB(DWS)

            Solution: Check whether the settings of GDS, HDFS foreign tables, Roach, and OBS are correct. GAUSS-01719: "cache lookup failed for partitioned table %u in pg_partition" SQLSTATE: XX000 Description: The corresponding tuple cannot be found in the partition table.

            Help > GaussDB(DWS) > 8.2.0 and earlier versions > Data Warehouse Service Error Codes > GAUSS-01701 -- GAUSS-01800
          • Scan Operation Hints - GaussDB(DWS)

            Scan Operation Hints - GaussDB(DWS)

            Scan operation hints can be used for row-store tables, column-store tables, HDFS tables, HDFS foreign tables, OBS tables, and subquery tables. HDFS tables include primary tables and delta tables. The delta tables are invisible to users.

            Help > GaussDB(DWS) > Developer Guide (9.1.0.x) > GaussDB(DWS) Performance Tuning > SQL Tuning > Hint-based Tuning
          • Concepts - GaussDB(DWS)

            Concepts - GaussDB(DWS)

            V3 table A V3 table refers to a table whose colversion defined in the CREATE TABLE syntax is 3.0 during table creation, indicating that each column of the column-store table is stored in a file named C1_field.0, and data is stored in the OBS file system.

            Help > GaussDB(DWS) > Service Overview
          • Restrictions - GaussDB(DWS)

            Restrictions - GaussDB(DWS)

            However, if you use more space than the free-of-charge storage space, the exceeded part is charged according to OBS billing rules. For details, see the OBS pricing details. The amount of free space you have is equal to the total storage capacity of your cluster.

            Help > GaussDB(DWS) > Service Overview
          • Using a Flink Job of DLI to Synchronize MySQL Data to a GaussDB(DWS) Cluster in Real Time - GaussDB(DWS)

            Using a Flink Job of DLI to Synchronize MySQL Data to a GaussDB(DWS) Cluster in Real Time - GaussDB(DWS)

            Figure 9 Testing GaussDB(DWS) connectivity Step 5: Creating a DLI Flink Job Log in to the OBS console and create an OBS bucket to store Flink jobs. For details, see the OBS User Guide. Set key parameters as follows and retain the default values for other parameters.

            Help > GaussDB(DWS) > Best Practices > Data Migration
          • Arrears - GaussDB(DWS)

            Arrears - GaussDB(DWS)

            If data stored in the OBS is no longer used, you can delete it to avoid further expenditures. Configure the Balance Alert function on the Billing Center > Overview page.

            Help > GaussDB(DWS) > Billing
          • Discount package - GaussDB(DWS)

            Discount package - GaussDB(DWS)

            It is used when the amount of OBS data to be stored or the data volume exceeds the package capacity.

            Help > GaussDB(DWS) > Billing > Billing Modes
          • Learn How to Select a GaussDB(DWS) Region and AZ - GaussDB(DWS)

            Learn How to Select a GaussDB(DWS) Region and AZ - GaussDB(DWS)

            Each region has its own shared public services (ECS, EVS, OBS, VPC, EIP, and IMS). Regions are either common or dedicated. A common region provides common cloud services available to all tenants.

            Help > GaussDB(DWS) > FAQs > Product Consulting
          • How Do I Select a GaussDB(DWS) Region and AZ? - GaussDB(DWS)

            How Do I Select a GaussDB(DWS) Region and AZ? - GaussDB(DWS)

            Each region has its own shared public services (ECS, EVS, OBS, VPC, EIP, and IMS). Regions are either common or dedicated. A common region provides common cloud services available to all tenants.

            Help > GaussDB(DWS) > FAQs > Product Consulting
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