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  1. Apache Tez
  2. TEZ-3869

Analyzer: Fix VertexInfo::getLastTaskToFinish comparison

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.9.1
    • Component/s: None
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      VertexInfo::getLastTaskToFinish incorrectly compares with getStartTimeInterval. This needs to be fixed. Observed timsort exceptions when analyzing some dag zips.

      java.lang.IllegalArgumentException: Comparison method violates its general contract!
      	at java.util.TimSort.mergeHi(TimSort.java:895)
      	at java.util.TimSort.mergeAt(TimSort.java:512)
      	at java.util.TimSort.mergeForceCollapse(TimSort.java:453)
      	at java.util.TimSort.sort(TimSort.java:250)
      	at java.util.Arrays.sort(Arrays.java:1435)
      	at java.util.Collections.sort(Collections.java:230)
      	at org.apache.tez.history.parser.datamodel.VertexInfo.getLastTaskToFinish(VertexInfo.java:542)
      

        Attachments

        1. TEZ-3869.2.patch
          3 kB
          Rajesh Balamohan
        2. TEZ-3869.1.patch
          0.9 kB
          Rajesh Balamohan

          Activity

            People

            • Assignee:
              rajesh.balamohan Rajesh Balamohan
              Reporter:
              rajesh.balamohan Rajesh Balamohan
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              Dates

              • Created:
                Updated:
                Resolved: