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https://issues.apache.org/jira/browse/HDFS-4449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Harsh J updated HDFS-4449:
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Assignee: Yongjun Zhang (was: Harsh J)
> When a decommission is awaiting closure of live blocks, show the block IDs on
> the NameNode's UI report
> ------------------------------------------------------------------------------------------------------
>
> Key: HDFS-4449
> URL: https://issues.apache.org/jira/browse/HDFS-4449
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Harsh J
> Assignee: Yongjun Zhang
>
> It is rather common for people to be complaining about 'DN decommission'
> hangs cause of live blocks waiting to get completed by some app (especially
> certain HBase specifics cause a file to be open for a longer time, as
> compared with MR/etc.).
> While they can see a count of the blocks that are live, we should add some
> more details to that view. Particularly add the list of live blocks waiting
> to be closed, so that a user may understand better on why its hung and also
> be able to trace back the block to files manually if needed.
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