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  1. Hadoop Common
  2. HADOOP-1133

Tools to analyze and debug namenode on a production cluster

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.13.0
    • None
    • None

    Description

      I would like to have a tool that dumps namenode data structures to a log file. This is especially useful in debugging a production cluster where attaching a debugger to the namenode is not a feasible option.

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        1. metasave3.patch
          12 kB
          Dhruba Borthakur

        Issue Links

        relates to

        Bug - A problem which impairs or prevents the functions of the product. HADOOP-1113 namenode slowdown when orphan block(s) left in neededReplication

        • Major - Major loss of function.
        • Closed

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            dhruba Dhruba Borthakur
            dhruba Dhruba Borthakur
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              Resolved:

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