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  1. Hadoop Map/Reduce
  2. MAPREDUCE-5351

JobTracker memory leak caused by CleanupQueue reopening FileSystem

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 1.1.2
    • 1-win, 1.2.1
    • jobtracker
    • None

    Description

      When a job is completed, closeAllForUGI is called to close all the cached FileSystems in the FileSystem cache. However, the CleanupQueue may run after this occurs and call FileSystem.get() to delete the staging directory, adding a FileSystem to the cache that will never be closed.

      People on the user-list have reported this causing their JobTrackers to OOME every two weeks.

      Attachments

        1. MAPREDUCE-5351-addendum-1.patch
          2 kB
          Sandy Ryza
        2. MAPREDUCE-5351-addendum.patch
          0.6 kB
          Sandy Ryza
        3. MAPREDUCE-5351-2.patch
          6 kB
          Sandy Ryza
        4. MAPREDUCE-5351-1.patch
          6 kB
          Sandy Ryza
        5. MAPREDUCE-5351.patch
          3 kB
          Sandy Ryza
        6. JobInProgress_JobHistory.patch
          3 kB
          jandyfish

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-5508 JobTracker memory leak caused by unreleased FileSystem objects in JobInProgress#cleanupJob

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Activity

            People

              sandyr Sandy Ryza
              sandyr Sandy Ryza
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              Dates

                Created:
                Updated:
                Resolved: