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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1564) Make dfs.datanode.du.reserved configurable per volume
Date Tue, 04 Jan 2011 21:50:48 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1564?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12977473#action_12977473

Konstantin Shvachko commented on HDFS-1564:

dfs.datanode.du.reserved is per volume. Here is the description from hdfs-default.xml:
  <description>Reserved space in bytes per volume. Always leave this much space free
for non dfs use.
Also if you look in the code the property is used in FSVolume, which corresponds to one volume.
Or do I miss what this is about?

> Make dfs.datanode.du.reserved configurable per volume
> -----------------------------------------------------
>                 Key: HDFS-1564
>                 URL: https://issues.apache.org/jira/browse/HDFS-1564
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: data-node
>            Reporter: Aaron T. Myers
>            Priority: Minor
> In clusters with DNs which have heterogeneous data dir volumes, it would be nice if dfs.datanode.du.reserved
could be configured per-volume.

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