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From "Brahma Reddy Battula (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9038) DFS reserved space is erroneously counted towards non-DFS used.
Date Wed, 07 Sep 2016 10:48:21 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brahma Reddy Battula updated HDFS-9038:
---------------------------------------
    Status: Patch Available  (was: Reopened)

> 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
>             Fix For: 2.8.0, 3.0.0-alpha2
>
>         Attachments: GetFree.java, HDFS-9038-002.patch, HDFS-9038-003.patch, HDFS-9038-004.patch,
HDFS-9038-005.patch, HDFS-9038-006.patch, HDFS-9038-007.patch, HDFS-9038-008.patch, HDFS-9038-009.patch,
HDFS-9038-010.patch, HDFS-9038-011.patch, HDFS-9038-branch-2.7.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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