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https://issues.apache.org/jira/browse/HDFS-4274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13510657#comment-13510657
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Chris Nauroth commented on HDFS-4274:
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This is particularly problematic for tests on Windows. The tests stop and
start {{MiniDFSCluster}} many times within the same process. Windows holds a
lock on the unclosed verification log, preventing {{MiniDFSCluster}} from fully
deleting the testing data directory. This problem currently causes 152 test
suites to fail early during initialization on Windows.
I have a patch in progress for {{DataBlockScanner}} to call a shutdown method
on {{BlockPoolSliceScanner}} so that it can close the verification log.
> BlockPoolSliceScanner does not close verification log during shutdown
> ---------------------------------------------------------------------
>
> Key: HDFS-4274
> URL: https://issues.apache.org/jira/browse/HDFS-4274
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: trunk-win
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
>
> {{BlockPoolSliceScanner}} holds open a handle to a verification log. This
> file is not getting closed during process shutdown.
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