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What Should I Do If Submitted Yarn Jobs Cannot Be Viewed on the Web UI? Question: Why a created Yarn job cannot be viewed when I log in to Manager as the admin user? Answer: The admin user is a user on the cluster management page. Check whether the user has the supergroup permission
How Do I View SQL Statements of Hive Jobs on the Yarn Web UI? Log in to FusionInsight Manager as a service user. Choose Cluster > Services > Yarn. Click ResourceManager(xxx,Active) next to ResourceManager WebUI. On the YARN web UI, click the ID of the job to be viewed. Click ApplicationMaster
How Can I Check Whether DNS Verification Takes Effect for Windows OSs? This topic describes how to check whether domain ownership DNS verification takes effect on Windows OSs. After you submit a certificate application to the CA, complete the domain ownership verification by DNS.
What Should I Consider When Transferring or Operating Data Between Different OSs? Convert the format of a data file before importing the file. Run the following command to convert the format of a file in the Windows OS to that in the Unix-like OS: dos2unix {filename} Run the following
[Notice] Starting OBT for DDS Cluster 5.0 on Nov 5, 2024 Huawei Cloud will start open beta testing (OBT) for Document Database Service (DDS) cluster 5.0 on November 5, 2024. OBT Time and Regions Regions CN East2, CN East-Qingdao, ME-Riyadh, CN-Hong Kong, AP-Jakarta, and AP-Bangkok
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
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
Restoring a Disk Using a VBS Backup (Native OpenStack API) (Deprecated) Function This API is used to restore a disk using a VBS backup. This API has been deprecated. URI URI format POST /v2/{project_id}/backups/{backup_id}/restore Parameter description Parameter Mandatory Description
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
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
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
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
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
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
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
