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https://issues.apache.org/jira/browse/YARN-3705?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Masatake Iwasaki updated YARN-3705:
-----------------------------------
    Attachment: YARN-3705.004.patch

I should not have used ResourceManager#handleTransitionToStandBy due to the way 
of error handling.
{code}
      } catch (Exception e) {
        LOG.fatal("Failed to transition RM to Standby mode.");
        ExitUtil.terminate(1, e);
{code}

004 is just using AdminService#resetLeaderElection. TestWorkPreservingRMRestart 
and TestRMRestart are succeeded on my local environment.


> forcemanual transitionToStandby in RM-HA automatic-failover mode should 
> change elector state
> --------------------------------------------------------------------------------------------
>
>                 Key: YARN-3705
>                 URL: https://issues.apache.org/jira/browse/YARN-3705
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Masatake Iwasaki
>            Assignee: Masatake Iwasaki
>         Attachments: YARN-3705.001.patch, YARN-3705.002.patch, 
> YARN-3705.003.patch, YARN-3705.004.patch
>
>
> Executing {{rmadmin -transitionToStandby --forcemanual}} in 
> automatic-failover.enabled mode makes ResouceManager standby while keeping 
> the state of ActiveStandbyElector. It should make elector to quit and rejoin 
> in order to enable other candidates to promote, otherwise forcemanual 
> transition should not be allowed in automatic-failover mode in order to avoid 
> confusion.



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