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Posted to hdfs-issues@hadoop.apache.org by "Arpit Agarwal (JIRA)" <ji...@apache.org> on 2015/12/10 18:09:11 UTC
[jira] [Commented] (HDFS-9038) DFS reserved space is erroneously
counted towards non-DFS used.
[ https://issues.apache.org/jira/browse/HDFS-9038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15051260#comment-15051260 ]
Arpit Agarwal commented on HDFS-9038:
-------------------------------------
I also edited the Jira title to mention "DFS reserved space", to distinguish it from system-reserved space.
> DFS 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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