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From "Brahma Reddy Battula (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9038) Reserved space is erroneously counted towards non-DFS used.
Date Mon, 30 Nov 2015 17:17:11 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15032110#comment-15032110
] 

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

Raised separate jira's for above three improvements (HDFS-9480,HDFS-9481 and HDFS-9482).And
uploaded the patch to address [~vinayrpet] and [~arpitagarwal] comments,kindly review..

> 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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