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https://issues.apache.org/jira/browse/YARN-9744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16906205#comment-16906205
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Abhishek Modi commented on YARN-9744:
-------------------------------------
Thanks [~Prabhu Joseph] for the patch. LGTM. Committed to trunk.
> RollingLevelDBTimelineStore.getEntityByTime fails with NPE
> ----------------------------------------------------------
>
> Key: YARN-9744
> URL: https://issues.apache.org/jira/browse/YARN-9744
> Project: Hadoop YARN
> Issue Type: Bug
> Components: timelineserver
> Affects Versions: 3.2.0, 3.3.0
> Reporter: Prabhu Joseph
> Assignee: Prabhu Joseph
> Priority: Major
> Attachments: YARN-9744-001.patch
>
>
> RollingLevelDBTimelineStore.getEntityByTime fails with NPE.
> {code}
> 2019-08-07 12:58:55,990 WARN ipc.Server (Server.java:logException(2433)) -
> IPC Server handler 0 on 10200, call
> org.apache.hadoop.yarn.api.ApplicationHistoryProtocolPB.getContainers from
> 10.21.216.93:36392 Call#29446915 Retry#0
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.timeline.RollingLevelDBTimelineStore.getEntityByTime(RollingLevelDBTimelineStore.java:786)
> at
> org.apache.hadoop.yarn.server.timeline.RollingLevelDBTimelineStore.getEntities(RollingLevelDBTimelineStore.java:614)
> at
> org.apache.hadoop.yarn.server.timeline.EntityGroupFSTimelineStore.getEntities(EntityGroupFSTimelineStore.java:1045)
> at
> org.apache.hadoop.yarn.server.timeline.TimelineDataManager.doGetEntities(TimelineDataManager.java:168)
> at
> org.apache.hadoop.yarn.server.timeline.TimelineDataManager.getEntities(TimelineDataManager.java:138)
> at
> org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryManagerOnTimelineStore.getContainers(ApplicationHistoryManagerOnTimelineStore.java:222)
> at
> org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryClientService.getContainers(ApplicationHistoryClientService.java:213)
> at
> org.apache.hadoop.yarn.api.impl.pb.service.ApplicationHistoryProtocolPBServiceImpl.getContainers(ApplicationHistoryProtocolPBServiceImpl.java:172)
> at
> org.apache.hadoop.yarn.proto.ApplicationHistoryProtocol$ApplicationHistoryProtocolService$2.callBlockingMethod(ApplicationHistoryProtocol.java:201)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:640)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:982)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2351)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2347)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1869)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2347)
> {code}
> This affects Rest Api to get entities.
> curl http://pjosephdocker:8188/ws/v1/timeline/TEZ_APPLICATION
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