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  1. Hadoop Map/Reduce
  2. MAPREDUCE-1755

Zombie tasks kept alive by logging system

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Won't Fix
    • 0.20.2
    • None
    • None
    • None

    Description

      I'm currently looking at a task that, as far as the task tracker is concerned, is dead. Like long long long ago dead. It was a failed task that ran out of heap. Rather than just kill it, I thought I would see what it was doing, since it was clearly using system resources. It would appear the system is trying to log but failing. I'm guessing we're missing an error condition and not doing the appropriate thing. See the comments for more.

      Attachments

        1. tightloop.txt
          1 kB
          Allen Wittenauer
        2. syslog.txt
          1.0 kB
          Allen Wittenauer
        3. stderr.txt
          3 kB
          Allen Wittenauer
        4. jstack.txt
          7 kB
          Allen Wittenauer

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            Unassigned Unassigned
            aw Allen Wittenauer
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            Dates

              Created:
              Updated:
              Resolved: