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  1. Hadoop HDFS
  2. HDFS-10742

Measure lock time in FsDatasetImpl

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.0.0-alpha2
    • 2.8.0, 3.0.0-alpha2
    • datanode
    • None
    • Reviewed

    Description

      This JIRA proposes to measure the time the of lock of FsDatasetImpl is held by a thread. Doing so will allow us to measure lock statistics.

      This can be done by extending the AutoCloseableLock lock object in FsDatasetImpl. In the future we can also consider replacing the lock with a read-write lock.

      Attachments

        1. HDFS-10742.017.patch
          18 kB
          Christopher Douglas
        2. HDFS-10742.016.patch
          17 kB
          Christopher Douglas
        3. HDFS-10742.015.patch
          16 kB
          Christopher Douglas
        4. HDFS-10742.014.patch
          11 kB
          Chen Liang
        5. HDFS-10742.013.patch
          11 kB
          Chen Liang
        6. HDFS-10742.012.patch
          11 kB
          Chen Liang
        7. HDFS-10742.011.patch
          11 kB
          Chen Liang
        8. HDFS-10742.010.patch
          6 kB
          Chen Liang
        9. HDFS-10742.009.patch
          6 kB
          Chen Liang
        10. HDFS-10742.008.patch
          10 kB
          Chen Liang
        11. HDFS-10742.007.patch
          10 kB
          Chen Liang
        12. HDFS-10742.006.patch
          10 kB
          Chen Liang
        13. HDFS-10742.005.patch
          10 kB
          Chen Liang
        14. HDFS-10742.004.patch
          10 kB
          Chen Liang
        15. HDFS-10742.003.patch
          11 kB
          Chen Liang
        16. HDFS-10742.002.patch
          11 kB
          Chen Liang
        17. HDFS-10742.001.patch
          13 kB
          Chen Liang

        Issue Links

          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
          requires

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-10682 Replace FsDatasetImpl object lock with a separate lock object

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              vagarychen Chen Liang
              vagarychen Chen Liang
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              Dates

                Created:
                Updated:
                Resolved: