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https://issues.apache.org/jira/browse/YARN-9238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Weiwei Yang updated YARN-9238:
------------------------------
Summary: Avoid allocating opportunistic containers to
previous/removed/non-exist application attempt (was: Avoid to allocate
opportunistic containers to previous/removed/non-exist application attempt)
> Avoid allocating opportunistic containers to previous/removed/non-exist
> application attempt
> -------------------------------------------------------------------------------------------
>
> Key: YARN-9238
> URL: https://issues.apache.org/jira/browse/YARN-9238
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: lujie
> Assignee: lujie
> Priority: Critical
> Attachments: YARN-9238_1.patch, YARN-9238_2.patch, YARN-9238_3.patch,
> hadoop-test-resourcemanager-hadoop11.log
>
>
> See
> org.apache.hadoop.yarn.server.resourcemanager.OpportunisticContainerAllocatorAMService.OpportunisticAMSProcessor.allocate
> {code:java}
> // Allocate OPPORTUNISTIC containers.
> 171. SchedulerApplicationAttempt appAttempt =
> 172. ((AbstractYarnScheduler)rmContext.getScheduler())
> 173. .getApplicationAttempt(appAttemptId);
> 174.
> 175. OpportunisticContainerContext oppCtx =
> 176. appAttempt.getOpportunisticContainerContext();
> 177. oppCtx.updateNodeList(getLeastLoadedNodes());
> {code}
> MRAppmaster crashes before before allocate#171, ResourceManager will start
> the new appAttempt and do
> {code:java}
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplication.setCurrentAppAttempt(T
> currentAttempt){
> this.currentAttempt = currentAttempt;
> }{code}
> hence the allocate#171 will get the new appAttmept and its field
> OpportunisticContainerContext hasn't been initialized.
> so oopCtx ==null at and null pointer happens at line 177
> {code:java}
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.resourcemanager.OpportunisticContainerAllocatorAMService$OpportunisticAMSProcessor.allocate(OpportunisticContainerAllocatorAMService.java:177)
> at
> org.apache.hadoop.yarn.server.resourcemanager.AMSProcessingChain.allocate(AMSProcessingChain.java:92)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ApplicationMasterService.allocate(ApplicationMasterService.java:424)
> at
> org.apache.hadoop.yarn.api.impl.pb.service.ApplicationMasterProtocolPBServiceImpl.allocate(ApplicationMasterProtocolPBServiceImpl.java:60)
> at
> org.apache.hadoop.yarn.proto.ApplicationMasterProtocol$ApplicationMasterProtocolService$2.callBlockingMethod(ApplicationMasterProtocol.java:99)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:530)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1070)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:943)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:878)
> 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:1876)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2830) {code}
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