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What Can I Do If DataArts Studio Occasionally Fails to Schedule Spark Jobs? Symptom DataArtsStudio occasionally fails to schedule Spark jobs and the rescheduling also fails. The following error information is displayed: Caused by: org.apache.spark.SparkException: Application application
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
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
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
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
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
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
