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  1. Hadoop HDFS
  2. HDFS-4449

When a decommission is awaiting closure of live blocks, show the block IDs on the NameNode's UI report

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    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
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      Description

      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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              • Assignee:
                yzhangal Yongjun Zhang
                Reporter:
                qwertymaniac Harsh J
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                Dates

                • Created:
                  Updated: