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https://issues.apache.org/jira/browse/YARN-6801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16146748#comment-16146748
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Hudson commented on YARN-6801:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #12271 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/12271/])
YARN-6801. NPE in RM while setting collectors map in (varunsaxena: rev
660413165aa25815bbba66ac2195b0ae17184844)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceTrackerService.java
> NPE in RM while setting collectors map in NodeHeartbeatResponse
> ---------------------------------------------------------------
>
> Key: YARN-6801
> URL: https://issues.apache.org/jira/browse/YARN-6801
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Affects Versions: YARN-5355, YARN-5355-branch-2
> Reporter: Vrushali C
> Assignee: Vrushali C
> Fix For: YARN-5355, YARN-5355-branch-2
>
> Attachments: YARN-6801-YARN-5355.001.patch
>
>
> Null Pointer Exception seen in
> ResourceTrackerService#setAppCollectorsMapToResponse call
> {code}
> 2017-06-22 22:24:01,437 WARN org.apache.hadoop.ipc.Server: IPC Server handler
> 49 on 8031, call
> org.apache.hadoop.yarn.server.api.ResourceTrackerPB.nodeHeartbeat from
> 10.35.172.116:44399 Call#3929 Retry#0
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceTrackerService.setAppCollectorsMapToResponse(ResourceTrackerService.java:467)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceTrackerService.nodeHeartbeat(ResourceTrackerService.java:447)
> at
> org.apache.hadoop.yarn.server.api.impl.pb.service.ResourceTrackerPBServiceImpl.nodeHeartbeat(ResourceTrackerPBServiceImpl.java:68)
> at
> org.apache.hadoop.yarn.proto.ResourceTracker$ResourceTrackerService$2.callBlockingMethod(ResourceTracker.java:81)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:619)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:962)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2084)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2080)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1645)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2078)
> {code}
> It correlates to RM invoking setAppCollectorsMapToResponse and calling
> {code}
> AppCollectorData appCollectorData =
> rmApps.get(appId).getCollectorData();
> {code}
> If the app object is not present in the list of running app ids, then this
> will throw NPE.
> Filing jira to fix it.
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