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https://issues.apache.org/jira/browse/HDFS-7719?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lei (Eddy) Xu updated HDFS-7719:
--------------------------------
Attachment: HDFS-7719.000.patch
This patch checks the targeted directories are parent directories in
{{BlockPoolSliceStorage#removeVolumes}}. A test is added to enforce the
behavior.
> BlockPoolSliceStorage could not remove storageDir.
> --------------------------------------------------
>
> Key: HDFS-7719
> URL: https://issues.apache.org/jira/browse/HDFS-7719
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.6.0
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Attachments: HDFS-7719.000.patch
>
>
> The parameter of {{BlockPoolSliceStorage#removeVolumes()}} is a set of volume
> level directories, thus {{BlockPoolSliceStorage}} could not directly compare
> its own {{StorageDirs}} with this volume-level directory. The result of that
> is {{BlockPoolSliceStorage}} did not actually remove the targeted
> {{StorageDirectory}}.
> It will cause failure when remove a volume and then immediately add a volume
> back with the same mount point..
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