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https://issues.apache.org/jira/browse/YARN-4247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14952545#comment-14952545
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Anubhav Dhoot commented on YARN-4247:
-------------------------------------
Yup. I had tested without that change. Resolving this as not needed.
> Deadlock in FSAppAttempt and RMAppAttemptImpl causes RM to stop processing
> events
> ---------------------------------------------------------------------------------
>
> Key: YARN-4247
> URL: https://issues.apache.org/jira/browse/YARN-4247
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler, resourcemanager
> Reporter: Anubhav Dhoot
> Assignee: Anubhav Dhoot
> Priority: Blocker
> Attachments: YARN-4247.001.patch, YARN-4247.001.patch
>
>
> We see this deadlock in our testing where events do not get processed and we
> see this in the logs before the RM dies of OOM {noformat} 2015-10-08
> 04:48:01,918 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: Size of
> event-queue is 1488000 2015-10-08 04:48:01,918 INFO
> org.apache.hadoop.yarn.event.AsyncDispatcher: Size of event-queue is 1488000
> {noformat}
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