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  1. Oozie
  2. OOZIE-1989

NPE during a rerun with forks

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Details

    • Bug
    • Status: Closed
    • Blocker
    • Resolution: Fixed
    • 4.1.0
    • 4.1.0
    • core
    • None

    Description

      OOZIE-1879 fixes a problem where the order of actions that the actions in a fork ended can be different than when they are executed during a rerun, resulting in an error. It does this by using a comparator to sort them into the proper order in LiteWorkflowInstance. However, the code assumes that all actions in the executionPath have an end time, which is not always true. If that happens, you get an NPE like this:

      java.lang.NullPointerException
              at org.apache.oozie.workflow.lite.LiteWorkflowInstance$ActionEndTimesComparator.compare(LiteWorkflowInstance.java:739)
              at org.apache.oozie.workflow.lite.LiteWorkflowInstance$ActionEndTimesComparator.compare(LiteWorkflowInstance.java:719)
              at java.util.TimSort.countRunAndMakeAscending(TimSort.java:324)
              at java.util.TimSort.sort(TimSort.java:189)
              at java.util.TimSort.sort(TimSort.java:173)
              at java.util.Arrays.sort(Arrays.java:659)
              at java.util.Collections.sort(Collections.java:217)
              at org.apache.oozie.workflow.lite.LiteWorkflowInstance.signal(LiteWorkflowInstance.java:316)
              at org.apache.oozie.command.wf.SignalXCommand.execute(SignalXCommand.java:190)
              at org.apache.oozie.command.wf.SignalXCommand.execute(SignalXCommand.java:73)
              at org.apache.oozie.command.XCommand.call(XCommand.java:283)
              at org.apache.oozie.service.CallableQueueService$CompositeCallable.call(CallableQueueService.java:323)
              at org.apache.oozie.service.CallableQueueService$CompositeCallable.call(CallableQueueService.java:252)
              at org.apache.oozie.service.CallableQueueService$CallableWrapper.run(CallableQueueService.java:174)
              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
              at java.lang.Thread.run(Thread.java:745)
      

      Attachments

        1. OOZIE-1989.patch
          1 kB
          Robert Kanter
        2. oozie-log.txt
          9 kB
          Purshotam Shah
        3. worflow.xml
          9 kB
          Purshotam Shah

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            rkanter Robert Kanter
            rkanter Robert Kanter
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              Updated:
              Resolved:

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