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  1. Hadoop Map/Reduce
  2. MAPREDUCE-2224

Synchronization bugs in JvmManager

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 0.22.0
    • 0.22.0
    • tasktracker
    • None
    • Reviewed

    Description

      JvmManager.JvmManagerForType has several HashMap members that are inconsistently synchronized. I've seen sporadic NPEs in the 0.20 version of this code which has similar bugs.

      Attachments

        1. mr-2224-0.22.patch
          7 kB
          Benoy Antony
        2. mr-2224-0.22.patch
          7 kB
          Benoy Antony
        3. mapreduce-2224-cdh3.txt
          10 kB
          Todd Lipcon
        4. mapreduce-2224.txt
          3 kB
          Todd Lipcon
        5. mapreduce-2224.txt
          11 kB
          Todd Lipcon
        6. mapreduce-2224.txt
          14 kB
          Todd Lipcon
        7. mapreduce-2224.txt
          14 kB
          Todd Lipcon

        Issue Links

          is depended upon by

          Task - A task that needs to be done. HADOOP-8357 Restore security in Hadoop 0.22 branch

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

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-2244 TestKillSubProcessesWithLinuxTaskController failing on trunk

          • Major - Major loss of function.
          • Open

          Activity

            People

              tlipcon Todd Lipcon
              tlipcon Todd Lipcon
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              Dates

                Created:
                Updated:
                Resolved: