[jira] [Moved] (YARN-8404) RM Recovery is delayed much if ATS1/1.5 server is not running.

["Rohith Sharma K S (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-8404?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rohith Sharma K S moved MAPREDUCE-7106 to YARN-8404:
----------------------------------------------------

        Key: YARN-8404  (was: MAPREDUCE-7106)
    Project: Hadoop YARN  (was: Hadoop Map/Reduce)

> RM Recovery is delayed much if ATS1/1.5 server is not running. 
> ---------------------------------------------------------------
>
>                 Key: YARN-8404
>                 URL: https://issues.apache.org/jira/browse/YARN-8404
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>            Priority: Critical
>
> It is observed that if ATS1/1.5 daemon is not running, RM recovery is delayed as long as timeline client get timed out for each applications. By default, timed out will take around 5 mins. If completed applications are more then amount of time RM will wait is *(number of completed applications in a cluster * 5 minutes)* which is kind of hanged. 
> Primary reason for this behavior is YARN-3044 YARN-4129 which refactor existing system metric publisher. This refactoring made appFinished event as synchronous which was asynchronous earlier. 



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