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From "Wang Xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1121) Allow HDFS client to measure distribution of blocks across devices for a specific DataNode
Date Fri, 15 Apr 2011 09:25:05 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13020249#comment-13020249
] 

Wang Xu commented on HDFS-1121:
-------------------------------

Is a servlet that reports df and du ok? I just added a servlet which could give an xml. And
each volume in it would like this:
{quote} 
<org.apache.hadoop.hdfs.server.datanode.FSDataset$FSVolume MountPoint="/state/partion1"
Capacity="223625277440" DfsUsed="24576" Available="40881012736"/>
{quote} 


> Allow HDFS client to measure distribution of blocks across devices for a specific DataNode
> ------------------------------------------------------------------------------------------
>
>                 Key: HDFS-1121
>                 URL: https://issues.apache.org/jira/browse/HDFS-1121
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs client
>            Reporter: Jeff Hammerbacher
>
> As discussed on the mailing list, it would be useful if the DfsClient could measure the
distribution of blocks across devices for an individual DataNode.

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