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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-7163) RM crashes with OOM in secured cluster when HA is enabled
Date Fri, 08 Sep 2017 12:07:00 GMT

     [ https://issues.apache.org/jira/browse/YARN-7163?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Rohith Sharma K S updated YARN-7163:
    Attachment: YARN-7163.03.patch

> 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
>         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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