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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5195) RM intermittently crashed with NPE while handling APP_ATTEMPT_REMOVED event when async-scheduling enabled in CapacityScheduler
Date Wed, 27 Jul 2016 05:00:26 GMT

    [ https://issues.apache.org/jira/browse/YARN-5195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15395043#comment-15395043
] 

Hudson commented on YARN-5195:
------------------------------

SUCCESS: Integrated in Hadoop-trunk-Commit #10161 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/10161/])
YARN-5195. RM intermittently crashed with NPE while handling (wangda: rev d62e121ffc0239e7feccc1e23ece92c5fac685f6)
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacityScheduler.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacityScheduler.java


> RM intermittently crashed with NPE while handling APP_ATTEMPT_REMOVED event when async-scheduling
enabled in CapacityScheduler
> ------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-5195
>                 URL: https://issues.apache.org/jira/browse/YARN-5195
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.7.2
>            Reporter: Karam Singh
>            Assignee: sandflee
>             Fix For: 2.9.0
>
>         Attachments: YARN-5195.01.patch, YARN-5195.02.patch, YARN-5195.03.patch
>
>
> While running gridmix experiments one time came across incident where RM went down with
following exception
> {noformat}
> 2016-05-28 15:45:24,459 [ResourceManager Event Processor] FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager:
Error in handling event type APP_ATTEMPT_REMOVED to the scheduler
> java.lang.NullPointerException
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.completedContainer(LeafQueue.java:1282)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.completedContainerInternal(CapacityScheduler.java:1469)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.completedContainer(AbstractYarnScheduler.java:497)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.doneApplicationAttempt(CapacityScheduler.java:860)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:1319)
>         at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:127)
>         at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:704)
>         at java.lang.Thread.run(Thread.java:745)
> 2016-05-28 15:45:24,460 [ApplicationMasterLauncher #49] INFO org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher:
Cleaning master appattempt_1464449118385_0006_000001
> 2016-05-28 15:45:24,460 [ResourceManager Event Processor] INFO org.apache.hadoop.yarn.server.resourcemanager.ResourceManager:
Exiting, bbye..
> {noformat}



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