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From "Bibin A Chundatt (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4152) NM crash when LogAggregationService#stopContainer called for absent container
Date Sat, 12 Sep 2015 15:02:45 GMT
Bibin A Chundatt created YARN-4152:
--------------------------------------

             Summary: NM crash when LogAggregationService#stopContainer called for absent
container
                 Key: YARN-4152
                 URL: https://issues.apache.org/jira/browse/YARN-4152
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Bibin A Chundatt
            Assignee: Bibin A Chundatt
            Priority: Critical


NM crash during of log aggregation.

*Logs*
{code}
2015-09-12 18:44:25,597 WARN org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor:
Exit code from container container_e51_1442063466801_0001_01_000099 is : 143
2015-09-12 18:44:25,670 WARN org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl:
Event EventType: KILL_CONTAINER sent to absent container container_e51_1442063466801_0001_01_000101
2015-09-12 18:44:25,670 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.application.ApplicationImpl:
Removing container_e51_1442063466801_0001_01_000101 from application application_1442063466801_0001
2015-09-12 18:44:25,670 FATAL org.apache.hadoop.yarn.event.AsyncDispatcher: Error in dispatcher
thread
java.lang.NullPointerException
        at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.LogAggregationService.stopContainer(LogAggregationService.java:422)
        at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.LogAggregationService.handle(LogAggregationService.java:456)
        at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.LogAggregationService.handle(LogAggregationService.java:68)
        at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:183)
        at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:109)
        at java.lang.Thread.run(Thread.java:745)
2015-09-12 18:44:25,692 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.AuxServices:
Got event CONTAINER_STOP for appId application_1442063466801_0001
2015-09-12 18:44:25,692 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: Exiting, bbye..
2015-09-12 18:44:25,692 INFO org.apache.hadoop.yarn.server.nodemanager.NMAuditLogger: USER=dsperf
      OPERATION=Container Finished - Succeeded        TARGET=ContainerImpl    RESULT=SUCCESS
 APPID=application_1442063466801_0001    CONTAINERID=container_e51_1442063466801_0001_01_000100

{code}

*Analysis*

Looks like for absent container also {{stopContainer}} is called 
{code}
      case CONTAINER_FINISHED:
        LogHandlerContainerFinishedEvent containerFinishEvent =
            (LogHandlerContainerFinishedEvent) event;
        stopContainer(containerFinishEvent.getContainerId(),
            containerFinishEvent.getExitCode());
        break;
{code}

Should skip when {{null==context.getContainers().get(containerId)}} 



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