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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2765) Add leveldb-based implementation for RMStateStore
Date Tue, 02 Dec 2014 00:32:12 GMT

    [ https://issues.apache.org/jira/browse/YARN-2765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14230754#comment-14230754
] 

Jian He commented on YARN-2765:
-------------------------------

looks good, +1

> Add leveldb-based implementation for RMStateStore
> -------------------------------------------------
>
>                 Key: YARN-2765
>                 URL: https://issues.apache.org/jira/browse/YARN-2765
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>         Attachments: YARN-2765.patch, YARN-2765v2.patch, YARN-2765v3.patch
>
>
> It would be nice to have a leveldb option to the resourcemanager recovery store. Leveldb
would provide some benefits over the existing filesystem store such as better support for
atomic operations, fewer I/O ops per state update, and far fewer total files on the filesystem.



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