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  1. Hadoop HDFS
  2. HDFS-10817

Add Logging for Long-held NN Read Locks

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    • Reviewed

    Description

      Right now the Namenode will log when a write lock is held for a long time to help tracks methods which are causing expensive delays. Let's do the same for read locks since these operations may also be expensive/long and cause delays.

      Attachments

        1. HDFS-10817.addendum.001.patch
          3 kB
          Zhe Zhang
        2. HDFS-10817.addendum.000.patch
          4 kB
          Erik Krogen
        3. HDFS-10817.004.patch
          12 kB
          Erik Krogen
        4. HDFS-10817.003.patch
          12 kB
          Erik Krogen
        5. HDFS-10817.002.patch
          12 kB
          Erik Krogen
        6. HDFS-10817.001.patch
          10 kB
          Erik Krogen
        7. HDFS-10817.000.patch
          10 kB
          Erik Krogen

        Issue Links

          is depended upon by

          Test - A new unit, integration or system test. HDFS-10829 Improve Testing for NN Lock Logging

          • Major - Major loss of function.
          • Open
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-9145 Tracking methods that hold FSNamesystemLock for too long

          • Major - Major loss of function.
          • Resolved
          relates to

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-10475 Adding metrics for long FSNamesystem read and write locks

          • Major - Major loss of function.
          • Open

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              xkrogen Erik Krogen
              xkrogen Erik Krogen
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              Dates

                Created:
                Updated:
                Resolved: