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https://issues.apache.org/jira/browse/HDFS-17035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17728567#comment-17728567
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ASF GitHub Bot commented on HDFS-17035:
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hfutatzhanghb opened a new pull request, #5708:
URL: https://github.com/apache/hadoop/pull/5708
### Description of PR
Currently, method getActualNonDfsUsed may return negative value, which can
cause getRemainingReserved computed inaccurately.
The reason is FsVolumeImpl#getDfsUsed use GetSpaceUsed to compute the usage
periodically, not in time.
### How was this patch tested?
TestFsVolumeList
TestRoundRobinVolumeChoosingPolicy
TestAvailableSpaceVolumeChoosingPolicy
> FsVolumeImpl#getActualNonDfsUsed may return negative value
> ----------------------------------------------------------
>
> Key: HDFS-17035
> URL: https://issues.apache.org/jira/browse/HDFS-17035
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 3.4.0
> Reporter: farmmamba
> Priority: Minor
>
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