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Posted to hdfs-dev@hadoop.apache.org by "Zhe Zhang (JIRA)" <ji...@apache.org> on 2014/11/06 19:33:33 UTC

[jira] [Created] (HDFS-7374) Allow decommissioning of dead DataNodes

Zhe Zhang created HDFS-7374:
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             Summary: Allow decommissioning of dead DataNodes
                 Key: HDFS-7374
                 URL: https://issues.apache.org/jira/browse/HDFS-7374
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Zhe Zhang
            Assignee: Zhe Zhang


We have seen the use case of decommissioning DataNodes that are already dead or unresponsive, and not expected to rejoin the cluster.

The logic introduced by HDFS-6791 will mark those nodes as {{DECOMMISSION_INPROGRESS}}, with a hope that they can come back and finish the decommission work. If an upper layer application is monitoring the decommissioning progress, it will hang forever.



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