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Date: Thu, 10 Dec 2015 11:16:11 +0000 (UTC)
From: "Brahma Reddy Battula (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HDFS-9038) Reserved space is erroneously
 counted towards non-DFS used.
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    [ https://issues.apache.org/jira/browse/HDFS-9038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15050607#comment-15050607 ] 

Brahma Reddy Battula commented on HDFS-9038:
--------------------------------------------

Ok.will wait till [~arpitagarwal] give his thought.

> Reserved space is erroneously counted towards non-DFS used.
> -----------------------------------------------------------
>
>                 Key: HDFS-9038
>                 URL: https://issues.apache.org/jira/browse/HDFS-9038
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 2.7.1
>            Reporter: Chris Nauroth
>            Assignee: Brahma Reddy Battula
>         Attachments: HDFS-9038-002.patch, HDFS-9038-003.patch, HDFS-9038-004.patch, HDFS-9038-005.patch, HDFS-9038.patch
>
>
> HDFS-5215 changed the DataNode volume available space calculation to consider the reserved space held by the {{dfs.datanode.du.reserved}} configuration property.  As a side effect, reserved space is now counted towards non-DFS used.  I don't believe it was intentional to change the definition of non-DFS used.  This issue proposes restoring the prior behavior: do not count reserved space towards non-DFS used.


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