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https://issues.apache.org/jira/browse/YARN-10934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17411636#comment-17411636
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Yuan Luo edited comment on YARN-10934 at 9/8/21, 7:26 AM:
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[~snemeth] Thanks for your reply, have fixed title, it is a NPE Error. I have
added some yarn config in the attachment. We use DefaultResourceCalculator and
queue number of vcore configuration is 0, suspicion and the related, but the
code is not found the problem.
was (Author: luoyuan):
[~snemeth] Thanks for your reply, have fixed title, it is a NPE Error. I will
add some information in the attachment.
> LeafQueue activateApplications NPE
> ----------------------------------
>
> Key: YARN-10934
> URL: https://issues.apache.org/jira/browse/YARN-10934
> Project: Hadoop YARN
> Issue Type: Bug
> Components: RM
> Affects Versions: 3.3.1
> Reporter: Yuan Luo
> Priority: Major
> Attachments: RM-capacity-scheduler.xml, RM-yarn-site.xml
>
>
> Our prod Yarn cluster is hadoop version 3.3.1 , we changed
> DefaultResourceCalculator -> DominantResourceCalculator and restart RM, then
> our RM crashed, the Exception stack like below. I think this is a serious
> bug and hope someone can follow up and fix it.
> 2021-08-30 21:00:59,114 ERROR event.EventDispatcher
> (MarkerIgnoringBase.java:error(159)) - Error in handling event type
> APP_ATTEMPT_REMOVED to the Event Dispatcher
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.activateApplications(LeafQueue.java:868)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.removeApplicationAttempt(LeafQueue.java:1014)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.finishApplicationAttempt(LeafQueue.java:972)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.doneApplicationAttempt(CapacityScheduler.java:1188)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:1904)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:171)
> at
> org.apache.hadoop.yarn.event.EventDispatcher$EventProcessor.run(EventDispatcher.java:79)
> at java.base/java.lang.Thread.run(Thread.java:834)
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