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https://issues.apache.org/jira/browse/YARN-3893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14712619#comment-14712619
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Varun Saxena commented on YARN-3893:
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I do not have any concern for exiting JVM. If fail fast is true(default
behavior), JVM will exit anyways.
I was wondering if it would be semantically appropriate to make JVM exit in
some cases if somebody has explicitly changed the fail fast config to false.
Logs can fill up if yarn-site.xml is wrong on both RMs' too.
I am not sure about the webapp part though. Does it require client rm service
to be initialized ? AFAIK, if RM is standby it will hit the webapp filter and
redirect to other RM(which may be active). Haven't tested UI after applying
previous patches, so maybe Bibin can tell. If there are some issues with
webapp, we will have to exit the JVM if transition to standby fails. Because
there may be no other way out then.
I will discuss further on this with you offline.
> Both RM in active state when Admin#transitionToActive failure from refeshAll()
> ------------------------------------------------------------------------------
>
> Key: YARN-3893
> URL: https://issues.apache.org/jira/browse/YARN-3893
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Affects Versions: 2.7.1
> Reporter: Bibin A Chundatt
> Assignee: Bibin A Chundatt
> Priority: Critical
> Attachments: 0001-YARN-3893.patch, 0002-YARN-3893.patch,
> 0003-YARN-3893.patch, 0004-YARN-3893.patch, 0005-YARN-3893.patch,
> yarn-site.xml
>
>
> Cases that can cause this.
> # Capacity scheduler xml is wrongly configured during switch
> # Refresh ACL failure due to configuration
> # Refresh User group failure due to configuration
> Continuously both RM will try to be active
> {code}
> dsperf@host-10-128:/opt/bibin/dsperf/OPENSOURCE_3_0/install/hadoop/resourcemanager/bin>
> ./yarn rmadmin -getServiceState rm1
> 15/07/07 19:08:10 WARN util.NativeCodeLoader: Unable to load native-hadoop
> library for your platform... using builtin-java classes where applicable
> active
> dsperf@host-128:/opt/bibin/dsperf/OPENSOURCE_3_0/install/hadoop/resourcemanager/bin>
> ./yarn rmadmin -getServiceState rm2
> 15/07/07 19:08:12 WARN util.NativeCodeLoader: Unable to load native-hadoop
> library for your platform... using builtin-java classes where applicable
> active
> {code}
> # Both Web UI active
> # Status shown as active for both RM
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