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  1. Hadoop HDFS
  2. HDFS-6185 HDFS operational and debuggability improvements
  3. HDFS-7120

When aborting NameNode or JournalNode due to metadata file problems, write the contents of the metadata directories and permissions to logs.

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    Details

    • Type: Sub-task
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: journal-node, namenode
    • Labels:
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      Description

      If the NameNode or JournalNode aborts due to an unexpected error in the metadata directories, often the root cause is that the metadata files are in an unexpected state, or permissions are broken on the directories. This issue proposes that during abort, we write additional information about the directory state and permissions to the logs. This can help speed up diagnosis, and ultimately recovery.

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            • Assignee:
              cnauroth Chris Nauroth
              Reporter:
              cnauroth Chris Nauroth
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              Dates

              • Created:
                Updated: