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https://issues.apache.org/jira/browse/HDFS-9038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15018549#comment-15018549
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Brahma Reddy Battula commented on HDFS-9038:
--------------------------------------------
This is not failing locally.But there is chance that this testcase can fail
intermittently after this change(There is a chance that nonDFS usage might have
slightly due to testlogs,).So I am keeping safeside as I did
{{TestNamenodeCapacityReport.java}}
*Check following results for same*
||Testenv||dfsused||dfsremaining||nondfsused||TotalCapacity||difference||
|Eclipse| 888|570023337984|74221730952|644245069824|0|
|jenkins Run| 147456|20430970142720|2887306715136|23318276997120|8192|
> 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.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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