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From "Rohith (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3410) YARN admin should be able to remove individual application records from RMStateStore
Date Sat, 28 Mar 2015 06:12:53 GMT

    [ https://issues.apache.org/jira/browse/YARN-3410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14385153#comment-14385153
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Rohith commented on YARN-3410:
------------------------------

Giving privilege to admin is good option for removing single application entry from state
store. There would be some other configurations which effect RM upon restart , may be need
to revisit or identifies those configs.

bq. RM should be able to report all fatal errors (which will shutdown RM) when doing app recovery,
this can save admin some time to remove apps in bad state.
To be more clear, do you mean fatal error should be logged in logs or in console?

> YARN admin should be able to remove individual application records from RMStateStore
> ------------------------------------------------------------------------------------
>
>                 Key: YARN-3410
>                 URL: https://issues.apache.org/jira/browse/YARN-3410
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager, yarn
>            Reporter: Wangda Tan
>            Assignee: Rohith
>            Priority: Critical
>
> When RM state store entered an unexpected state, one example is YARN-2340, when an attempt
is not in final state but app already completed, RM can never get up unless format RMStateStore.
> I think we should support remove individual application records from RMStateStore to
unblock RM admin make choice of either waiting for a fix or format state store.
> In addition, RM should be able to report all fatal errors (which will shutdown RM) when
doing app recovery, this can save admin some time to remove apps in bad state.



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