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From "Rohith (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2588) Standby RM does not transitionToActive if previous transitionToActive is failed with ZK exception.
Date Wed, 24 Sep 2014 03:22:34 GMT

    [ https://issues.apache.org/jira/browse/YARN-2588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14145822#comment-14145822
] 

Rohith commented on YARN-2588:
------------------------------

[~cindy2012] RM zkClient got session expired. Immediately zkClient got recovered, but at this
time RM already reached inconsistent state where it can not transition to active.

> Standby RM does not transitionToActive if previous transitionToActive is failed with
ZK exception.
> --------------------------------------------------------------------------------------------------
>
>                 Key: YARN-2588
>                 URL: https://issues.apache.org/jira/browse/YARN-2588
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 3.0.0, 2.6.0, 2.5.1
>            Reporter: Rohith
>            Assignee: Rohith
>
> Consider scenario where, StandBy RM is failed to transition to Active because of ZK exception(connectionLoss
or SessionExpired). Then any further transition to Active for same RM does not move RM to
Active state.



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