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https://issues.apache.org/jira/browse/YARN-10438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17197376#comment-17197376
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Raghvendra Singh commented on YARN-10438:
-----------------------------------------
[~shubhamod] Version number is correct, in ClientRMService class we have made a
custom change because of that line number might not be matching exactly.
> NPE while fetching container report for a node which is not there in
> active/decommissioned/lost/unhealthy nodes on RM
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-10438
> URL: https://issues.apache.org/jira/browse/YARN-10438
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 3.2.1
> Reporter: Raghvendra Singh
> Priority: Major
>
> Here is the Exception trace which we are seeing, we are suspecting because of
> this exception RM is reaching in a state where it is no more allowing any new
> job to run on the cluster.
> {noformat}
> 2020-09-15 07:08:15,496 WARN ipc.Server: IPC Server handler 18 on default
> port 8032, call Call#1463486 Retry#0
> org.apache.hadoop.yarn.api.ApplicationClientProtocolPB.getContainerReport
> from 10.39.91.205:49564 java.lang.NullPointerException at
> org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getContainerReport(ClientRMService.java:520)
> at
> org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.getContainerReport(ApplicationClientProtocolPBServiceImpl.java:466)
> at
> org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:639)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:528)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1070) at
> org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:999) at
> org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:927) 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:1730)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2915)
> {noformat}
> We are seeing this issue with this specific node only, we do run this cluster
> at a scale of around 500 nodes.
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