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https://issues.apache.org/jira/browse/YARN-11449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18032884#comment-18032884
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ASF GitHub Bot commented on YARN-11449:
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github-actions[bot] closed pull request #5466: YARN-11449. Fix for Intermittent
NPE while getting node labels for queue
URL: https://github.com/apache/hadoop/pull/5466
> Fix Intermittent NPE while getting node labels for queue
> --------------------------------------------------------
>
> Key: YARN-11449
> URL: https://issues.apache.org/jira/browse/YARN-11449
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Reporter: Sunil Kalva
> Assignee: Sunil Kalva
> Priority: Minor
> Labels: pull-request-available
>
> NPE is thrown in yarn client when trying to check on queue status.
> Partial stack trace:
> Caused by:
> org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException):
> java.lang.NullPointerException
> at java.util.AbstractCollection.addAll(AbstractCollection.java:343)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.AbstractCSQueue.getNodeLabelsForQueue(AbstractCSQueue.java:961)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.AbstractCSQueue.getQueueConfigurations(AbstractCSQueue.java:528)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.AbstractCSQueue.getQueueInfo(AbstractCSQueue.java:494)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.getQueueInfo(LeafQueue.java:472)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt.getResourceUsageReport(SchedulerApplicationAttempt.java:1048)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerApp.getResourceUsageReport(FiCaSchedulerApp.java:1041)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.getAppResourceUsageReport(AbstractYarnScheduler.java:408)
> at
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptMetrics.getAggregateAppResourceUsage(RMAppAttemptMetrics.java:142)
> at
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl.getApplicationResourceUsageReport(RMAppAttemptImpl.java:954)
> at
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.createAndGetApplicationReport(RMAppImpl.java:761)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getApplicationReport(ClientRMService.java:396)
> at
> org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.getApplicationReport(ApplicationClientProtocolPBServiceImpl.java:224)
> at
> org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:529)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:507)
>
> Issue originates at
> [https://github.com/apache/hadoop/blob/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/AbstractCSQueue.java#L599|https://github.com/apache/hadoop/blob/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/AbstractCSQueue.java#L960]
> because of the lack of Null Check for this.getAccessibleNodeLabels()
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