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https://issues.apache.org/jira/browse/HDFS-4768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13643415#comment-13643415
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Arpit Agarwal commented on HDFS-4768:
-------------------------------------
+1
Verified on Windows and OS X. Nice find!
> block scanner does not close verification log when a block pool is being
> deleted (but the datanode remains running)
> -------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-4768
> URL: https://issues.apache.org/jira/browse/HDFS-4768
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 3.0.0, 2.0.4-alpha
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
> Attachments: HDFS-4768.1.patch
>
>
> HDFS-4274 fixed a file handle leak of the block scanner's verification logs
> by adding method {{BlockPoolSliceScanner#shutdown}} and guaranteeing that the
> method gets called for each live {{BlockPoolSliceScanner}} during datanode
> shutdown. However, that patch did not consider the case of deleting a block
> pool via {{ClientDatanodeProtocol#deleteBlockPool}} while the datanode
> remains running.
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