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https://issues.apache.org/jira/browse/YARN-7163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16158720#comment-16158720
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Sunil G commented on YARN-7163:
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Bumping up to blocker for beta1 as this is an OOM issue
> RM crashes with OOM in secured cluster when HA is enabled
> ---------------------------------------------------------
>
> Key: YARN-7163
> URL: https://issues.apache.org/jira/browse/YARN-7163
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Reporter: Rohith Sharma K S
> Assignee: Rohith Sharma K S
> Priority: Blocker
> Attachments: suspect-1.png, suspect-2.png, YARN-7163.01.patch,
> YARN-7163.02.patch, YARN-7163.03.patch, YARN-7163.03.patch
>
>
> It is observed that RM crashes with heap space OOM in secure cluster(http
> authentication is kerborse) when RM HA is enabled.
> Scenario is
> 1. Start RM in HA secure mode. Lets say RM1 is active mode.
> 2. Run many applications so that it uses greater than 50% of heap space
> configured. Lets say, if heap space is 2GB, then run applications that occupy
> 1.5GB of heap space.
> 3. Switch RM to StandBy and bring back to Active! While recovering
> applications from state store, RM crashes with OOM.
> *Note* : This issue will happen only when RM is started as ACTIVE directly.
> (not switched from standby to active during start of JVM)
> Heap dump shows that RMAuthenticationFilter holds 60% heap space! And other
> 40% held by RMAppState which is during recovering from state store. This
> exceeds the heap space and crashes with OOM.
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