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https://issues.apache.org/jira/browse/HDFS-8871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15103991#comment-15103991
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Junping Du commented on HDFS-8871:
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Move it out of 2.6.4 given no update for a while.

> Decommissioning of a node with a failed volume may not start
> ------------------------------------------------------------
>
>                 Key: HDFS-8871
>                 URL: https://issues.apache.org/jira/browse/HDFS-8871
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Kihwal Lee
>            Assignee: Daryn Sharp
>            Priority: Critical
>
> Since staleness may not be properly cleared, a node with a failed volume may 
> not actually get scanned for block replication. Nothing is being replicated 
> from these nodes.
> This bug does not manifest unless the datanode has a unique storage ID per 
> volume. 



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