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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (YARN-1193) ResourceManger.clusterTimeStamp should be reset when RM transitions to active
Date Fri, 13 Sep 2013 17:41:52 GMT

     [ https://issues.apache.org/jira/browse/YARN-1193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bikas Saha resolved YARN-1193.
------------------------------

    Resolution: Duplicate
      Assignee:     (was: Karthik Kambatla)

YARN-1027 fixes this.
                
> ResourceManger.clusterTimeStamp should be reset when RM transitions to active
> -----------------------------------------------------------------------------
>
>                 Key: YARN-1193
>                 URL: https://issues.apache.org/jira/browse/YARN-1193
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Karthik Kambatla
>         Attachments: yarn-1193-1.patch
>
>
> ResourceManager.clusterTimeStamp is used to generate application-ids. 
> Currently, when the RM transitions to active-standby-active back and forth, the clusterTimeStamp
stays the same leading to apps getting the same ids as jobs from before. This leads to other
races in staging directory etc.
> To avoid this, it is better to set it on every transition to Active.

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