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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2131) Add a way to nuke the RMStateStore
Date Tue, 08 Jul 2014 02:36:34 GMT

    [ https://issues.apache.org/jira/browse/YARN-2131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14054439#comment-14054439
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Karthik Kambatla commented on YARN-2131:
----------------------------------------

Looks good. +1. 

One nit that I can fix at commit time: rename ZKStore#deleteWithRetriesHelper to recursivedeleteWithRetries
and add a comment about recursion. 

Also, may be in another JIRA, we should not format if an RM is actively running. I am not
sure how easy this is, particularly in an HA setting. 

> Add a way to nuke the RMStateStore
> ----------------------------------
>
>                 Key: YARN-2131
>                 URL: https://issues.apache.org/jira/browse/YARN-2131
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.4.0
>            Reporter: Karthik Kambatla
>            Assignee: Robert Kanter
>         Attachments: YARN-2131.patch, YARN-2131.patch
>
>
> There are cases when we don't want to recover past applications, but recover applications
going forward. To do this, one has to clear the store. Today, there is no easy way to do this
and users should understand how each store works.



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