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  1. Hadoop Common
  2. HADOOP-7854

UGI getCurrentUser is not synchronized

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 1.0.0
    • 1.0.0, 0.23.1
    • security
    • None

    Description

      Sporadic ConcurrentModificationExceptions are originating from UGI.getCurrentUser when it needs to create a new instance. The problem was specifically observed in a JT under heavy load when a post-job cleanup is accessing the UGI while a new job is being processed.

      Attachments

        1. HADOOP-7854-trunk.patch
          0.9 kB
          Daryn Sharp
        2. HADOOP-7854.patch
          0.8 kB
          Daryn Sharp

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            daryn Daryn Sharp
            daryn Daryn Sharp
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            Dates

              Created:
              Updated:
              Resolved: