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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2594) Potential deadlock in RM when querying ApplicationResourceUsageReport
Date Tue, 30 Sep 2014 18:42:34 GMT

    [ https://issues.apache.org/jira/browse/YARN-2594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14153536#comment-14153536
] 

Karthik Kambatla commented on YARN-2594:
----------------------------------------

We need to handle getFinalApplicationStatus, and may be {{createAndGetApplicationReport}}
as well. In the latter, we can replace direct access of {{diagnostics}} with {{getDiagnostics}}
to avoid races on diagnostics.

> Potential deadlock in RM when querying ApplicationResourceUsageReport
> ---------------------------------------------------------------------
>
>                 Key: YARN-2594
>                 URL: https://issues.apache.org/jira/browse/YARN-2594
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Karam Singh
>            Assignee: Wangda Tan
>            Priority: Blocker
>         Attachments: YARN-2594.patch, YARN-2594.patch
>
>
> ResoruceManager sometimes become un-responsive:
> There was in exception in ResourceManager log and contains only  following type of messages:
> {code}
> 2014-09-19 19:13:45,241 INFO  event.AsyncDispatcher (AsyncDispatcher.java:handle(232))
- Size of event-queue is 53000
> 2014-09-19 19:30:26,312 INFO  event.AsyncDispatcher (AsyncDispatcher.java:handle(232))
- Size of event-queue is 54000
> 2014-09-19 19:47:07,351 INFO  event.AsyncDispatcher (AsyncDispatcher.java:handle(232))
- Size of event-queue is 55000
> 2014-09-19 20:03:48,460 INFO  event.AsyncDispatcher (AsyncDispatcher.java:handle(232))
- Size of event-queue is 56000
> 2014-09-19 20:20:29,542 INFO  event.AsyncDispatcher (AsyncDispatcher.java:handle(232))
- Size of event-queue is 57000
> 2014-09-19 20:37:10,635 INFO  event.AsyncDispatcher (AsyncDispatcher.java:handle(232))
- Size of event-queue is 58000
> 2014-09-19 20:53:51,722 INFO  event.AsyncDispatcher (AsyncDispatcher.java:handle(232))
- Size of event-queue is 59000
> {code}



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