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  1. Tajo
  2. TAJO-1251

Query is hanging occasionally by shuffle report

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.9.0
    • Fix Version/s: 0.10.0
    • Component/s: Data Shuffle, QueryMaster
    • Labels:
      None

      Description

      Currently, Query is failed when race condition occur in SubQuery.waitingIntermediateReport(). If a event is not complete, other events will be blocked in AsyncDispatcher.
      We should remove the thread lock in event handler.

      2014-12-12 14:05:28,211 INFO org.apache.tajo.master.querymaster.SubQuery: eb_1412172843714_0001_000003, receiveExecutionBlockReport:3
      2014-12-12 14:05:28,227 ERROR org.apache.tajo.master.querymaster.SubQuery: eb_1412172843714_0001_000003, Timeout while receiving intermediate reports: 121471 ms
      

        Attachments

        1. querymaster.png
          476 kB
          Jinho Kim
        2. Tajo.gv
          9 kB
          Jinho Kim

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              • Assignee:
                jhkim Jinho Kim
                Reporter:
                jhkim Jinho Kim
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                • Created:
                  Updated:
                  Resolved: