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https://issues.apache.org/jira/browse/HDFS-6774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14113111#comment-14113111
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Aaron T. Myers commented on HDFS-6774:
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bq. It is indeed a separate bug. Should I open a new JIRA for this?
Yes, I'd recommend creating a separate JIRA for this bug.
bq. I think that DirectoryScanner does not need to change <snip>
Yes, I think you're right. Thanks for looking into this.
I just kicked Jenkins to get a test-patch run. Not sure why that didn't run
when you initially posted the patch. I'll be +1 pending Jenkins and pending
breaking out that other bug fix mentioned above.
Thanks a lot, Eddy.
> Make FsDataset and DataStore support removing volumes.
> ------------------------------------------------------
>
> Key: HDFS-6774
> URL: https://issues.apache.org/jira/browse/HDFS-6774
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode
> Affects Versions: 2.4.1
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Attachments: HDFS-6774.000.patch, HDFS-6774.001.patch,
> HDFS-6774.002.patch
>
>
> Managing volumes on DataNode includes decommissioning an active volume
> without restarting DataNode.
> This task adds support to remove volumes from {{DataStorage}} and
> {{BlockPoolSliceStorage}} dynamically.
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