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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2131) Add a way to format the RMStateStore
Date Thu, 10 Jul 2014 00:18:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-2131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14056940#comment-14056940
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Karthik Kambatla commented on YARN-2131:
----------------------------------------

bq. we should use multi operation here
Multi makes sense. [~rkanter] - will you be able to address these two comments? 

In general, the ZKRMStateStore has become complicated with all the retry logic and hard to
maintain. Should we just use something like Curator and simplify it? I recently used Curator
for Llama HA fencing - it works like a charm and the code is simple and maintainable. 

> Add a way to format the RMStateStore
> ------------------------------------
>
>                 Key: YARN-2131
>                 URL: https://issues.apache.org/jira/browse/YARN-2131
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: resourcemanager
>    Affects Versions: 2.4.0
>            Reporter: Karthik Kambatla
>            Assignee: Robert Kanter
>             Fix For: 2.6.0
>
>         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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