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  1. Hadoop Map/Reduce
  2. MAPREDUCE-1799

TaskTracker webui fails to show logs for tasks whose child JVM itself crashes before process launch

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Details

    • Bug
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • None
    • task, tasktracker
    • None

    Description

      In many cases like invalid JVM arguments, JVM started with too much initialize heap or beyond OS ulimits, the child JVM itself crashes before the process can even be launched. In these situation, the tasktracker's webUI doesn't show the logs. This is because of a bug in the TaskLogServlet which displays logs only when syslog, stdout, stderr are all present. In the JVM crash case, syslog isn't created and so task-logs aren't displayed at all.

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          depends upon

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-1648 Use rolling to limit tasklogs

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              vinodkv Vinod Kumar Vavilapalli
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              Dates

                Created:
                Updated: