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Posted to yarn-dev@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2013/09/13 03:20:52 UTC

[jira] [Created] (YARN-1193) ResourceManger.clusterTimeStamp should be reset when RM transitions to active

Karthik Kambatla created YARN-1193:
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             Summary: 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
            Assignee: Karthik Kambatla


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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