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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1776) renewDelegationToken should survive RM failover
Date Thu, 20 Mar 2014 17:26:46 GMT

    [ https://issues.apache.org/jira/browse/YARN-1776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13942001#comment-13942001
] 

Karthik Kambatla commented on YARN-1776:
----------------------------------------

RM failover doesn't rely on FSRMStateStore. In theory, it is possible to use FSRMStateStore
with RM failover, but we do not support fencing yet. I am okay with punting this fix in FSRMStateStore
to another JIRA? 

> renewDelegationToken should survive RM failover
> -----------------------------------------------
>
>                 Key: YARN-1776
>                 URL: https://issues.apache.org/jira/browse/YARN-1776
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>         Attachments: YARN-1776.1.patch
>
>
> When a delegation token is renewed, two RMStateStore operations: 1) removing the old
DT, and 2) storing the new DT will happen. If RM fails in between. There would be problem.



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