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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-231) Add persistent store implementation for RMStateStore
Date Fri, 23 Nov 2012 15:38:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13503229#comment-13503229
] 

Tom White commented on YARN-231:
--------------------------------

Some initial feedback on FileSystemRMStateStore (I haven't looked at the ZK store):

* There are references to znodes in FileSystemRMStateStore.
* Failure to read a file in FileSystemRMStateStore should not cause the whole recovery process
to fail, just that particular application or attempt.
* The literals "application_" and "appattempt_" should be made into constants that live in
ApplicationId and ApplicationAttemptId.

                
> Add persistent store implementation for RMStateStore
> ----------------------------------------------------
>
>                 Key: YARN-231
>                 URL: https://issues.apache.org/jira/browse/YARN-231
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Bikas Saha
>            Assignee: Bikas Saha
>         Attachments: YARN-231.1.patch
>
>
> Add stores that write RM state data to ZooKeeper and FileSystem 

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