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  1. Hadoop HDFS
  2. HDFS-204

Revive number of files listed metrics

    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.21.0
    • Fix Version/s: 0.21.0
    • Component/s: namenode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      When namenode becomes unresponsive by HADOOP-4693 (large filelist calls), metrics has been helpful in finding out the cause.
      When gc time hikes, "FileListed" metrics also hiked.

      In 0.18, after we fixed "FileListed" metrics so that it shows number of operations instead of number of files listed (HADOOP-3683), I stopped seeing this relationship graph.

      Can we bring back "NumbverOfFilesListed" metrics?

        Attachments

        1. HDFS-204.patch
          4 kB
          Jitendra Nath Pandey
        2. HDFS-204.patch
          5 kB
          Jitendra Nath Pandey
        3. HDFS-204-2.patch
          5 kB
          Suresh Srinivas
        4. HDFS-204-2.patch
          5 kB
          Suresh Srinivas
        5. getFileNum-yahoo20.patch
          5 kB
          Hairong Kuang

          Activity

            People

            • Assignee:
              jnp Jitendra Nath Pandey
              Reporter:
              knoguchi Koji Noguchi
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              Dates

              • Created:
                Updated:
                Resolved: