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  1. Hadoop HDFS
  2. HDFS-11034

Provide a command line tool to clear decommissioned DataNode information from the NameNode without restarting.

    Details

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

      Description

      Information about decommissioned DataNodes remains tracked in the NameNode for the entire NameNode process lifetime. Currently, the only way to clear this information is to restart the NameNode. This issue proposes to add a way to clear this information online, without requiring a process restart.

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            • Assignee:
              Unassigned
              Reporter:
              cnauroth Chris Nauroth
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              Dates

              • Created:
                Updated: