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https://issues.apache.org/jira/browse/YARN-3893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14621703#comment-14621703
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Xuan Gong commented on YARN-3893:
---------------------------------
How about add rm.transitionToStandby(true) before we throw the
ServiceFailedException in catch block ?
{code}
try {
rm.transitionToActive();
// call all refresh*s for active RM to get the updated configurations.
refreshAll();
RMAuditLogger.logSuccess(user.getShortUserName(),
"transitionToActive", "RMHAProtocolService");
} catch (Exception e) {
RMAuditLogger.logFailure(user.getShortUserName(), "transitionToActive",
"", "RMHAProtocolService",
"Exception transitioning to active");
throw new ServiceFailedException(
"Error when transitioning to Active mode", e);
}
{code}
In that case, we could transit the RM to standby, and since we throw out the
ServiceFailedException, this RM will rejoin the leader election process.
> 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: Bug
> Components: resourcemanager
> Reporter: Bibin A Chundatt
> Assignee: Bibin A Chundatt
> Priority: Critical
> Attachments: 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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