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Do I Need to Stop the Server Before Restoring EVS Disk Data with a VBS Backup? Yes. Before restoring the EVS disk data using a VBS backup, you must stop the server to which the EVS disk is attached, and detach the EVS disk from the server. After the EVS disk data is restored, attach
What Should I Do If the Error Message "UnknownScannerExeception" Is Displayed for Spark Jobs? Symptom Spark jobs run slowly. Warning information is printed in run logs, and the error cause is UnknownScannerExeception. Solution Before running a Spark job, adjust the value of hbase.client.scanner.timeout.period
How Do I Configure Spark Jobs to Automatically Obtain More Resources During Execution? Question: How Do I Configure Spark Jobs to Automatically Obtain More Resources During Execution? Answer: Resources are a key factor that affects Spark execution efficiency. When multiple executors
How Many Jobs Can Be Created in DataArts Factory? Is There a Limit on the Number of Nodes in a Job? Symptom Whether the number of jobs and the number of nodes in a job are limited during data development Solution By default, each user can create a maximum of 10,000 jobs, and each
What Should I Do If Jobs Fail to Be Submitted to YARN After JobGateway Starts for the First Time Question When JobGateway starts for the first time, jobs fail to be submitted to YARN, and no launcher-job ID is generated. On the YARN page, no launcher-job queue is displayed. Check
Binding Different Resource Pools to Two Types of Jobs to Balance Load for GaussDB(DWS) This practice demonstrates how to use GaussDB(DWS) for resource management, helping enterprises eliminate bottlenecks in concurrent query performance. SQL jobs can run smoothly without affecting
Querying Summary Information About VBS Backups (Native OpenStack API) (Deprecated) Function This API is used to query summary information about VBS backups. This API has been deprecated. URI URI format GET /v2/{project_id}/backups Parameter description Parameter Mandatory Description
Can I Use a VBS Backup to Restore an EVS Disk Whose Capacity Has Been Expanded? Yes. After restoration, the capacity of the expanded EVS disk goes back to the original capacity before expansion. If you want to use the capacity added to the disk, you need to attach the restored disk
How Do I Use Java to Invoke CDM RESTful APIs to Create Data Migration Jobs? CDM provides RESTful APIs to implement automatic job creation or execution control by program invocation. The following describes how to use CDM to migrate data from table city1 in the MySQL database to table
Do I Need to Stop the Server Before Backing Up EVS Disks on a Server Using VBS? VBS can back up EVS disks that are being used. When a server is running, data is written onto EVS disks on the server, and some newly generated data is stored in the server memory as cached data. During
Do I Need to Stop the Server Before Backing Up EVS Disks on a Server Using VBS? VBS can back up EVS disks that are being used. When a server is running, data is written onto EVS disks on the server, and some newly generated data is stored in the server memory as cached data. During
Can I Use a VBS Backup to Restore an EVS Disk Whose Capacity Has Been Expanded? Yes. After restoration, the capacity of the expanded EVS disk goes back to the original capacity before expansion. If you want to use the capacity added to the disk, you need to attach the restored disk
Why Can't I Submit Jobs on the Console After My IAM Account Is Assigned with MRS Permissions? Question: Why can't I submit jobs on the MRS console after my IAM account is assigned with the MRS ReadOnlyAccess and MRS FullAccess permissions? Answer: The account has the MRS ReadOnlyAccess
[Notice] OBT for Memory Acceleration of RDS for MySQL Starts from May 28, 2024 Huawei Cloud will start the open beta test (OBT) for memory acceleration of RDS for MySQL on May 28, 2024. OBT Time and Regions Starting from May 28, 2024 How to Participate On the Overview page of the
How Do I Migrate Incremental Source Data and How Does OMS Ensure Data Consistency? This problem can be described in the following two cases: Migrating new source data For details, see Migrating Incremental Data. Synchronizing changed source data Perform a full migration again. OMS
Will Resources Created During FunctionGraph 2.0 OBT Be Automatically Released When They Expire? Will Them Be Billed? FunctionGraph 2.0 automatically releases resources when they expire and you will not be billed for them. Parent topic: Other FAQs
How Do I Use Java to Invoke CDM RESTful APIs to Create Data Migration Jobs? CDM provides RESTful APIs to implement automatic job creation or execution control by program invocation. The following describes how to use CDM to migrate data from table city1 in the MySQL database to table
How Do I Migrate the Data Development Jobs and Data Connections from One Workspace to Another? You can export data connections and jobs from one workspace and import them to another workspace. Export and import data connections in Management Center. For details, see Migrating Resources
Why Do Reduce Tasks Fail to Run in Some OSs After the Native Task Feature is Enabled? Question After the Native Task feature is enabled, Reduce tasks fail to run in some OSs. Answer When -Dmapreduce.job.map.output.collector.class=org.apache.hadoop.mapred.nativetask.NativeMapOutputCollectorDelegator
[Notice] OBT for Memory Acceleration of RDS for MySQL Starts from May 28, 2024 Huawei Cloud will start the open beta test (OBT) for memory acceleration of RDS for MySQL on May 28, 2024. OBT Time and Regions Starting from May 28, 2024 How to Participate On the Overview page of the
