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Date: Mon, 1 Jul 2013 00:44:20 +0000 (UTC)
From: "Bikas Saha (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.12634453.1361987910337.189925.1372639460357@arcas>
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Subject: [jira] [Commented] (YARN-430) Add HDFS based store for RM which
 manages the store using directories
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    [ https://issues.apache.org/jira/browse/YARN-430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13696436#comment-13696436 ] 

Bikas Saha commented on YARN-430:
---------------------------------

We should probably change the FileSystem store to use directories. The original intent of not using directories was to support key value store targets but all file system impls will/should have directory support. key value stores mimic directories as table entries.
                
> Add HDFS based store for RM which manages the store using directories
> ---------------------------------------------------------------------
>
>                 Key: YARN-430
>                 URL: https://issues.apache.org/jira/browse/YARN-430
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Bikas Saha
>            Assignee: Jian He
>
> There is a generic FileSystem store but it does not take advantage of HDFS features like directories, replication, DFSClient advanced settings for HA, retries etc. Writing a store thats optimized for HDFS would be good.

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