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https://issues.apache.org/jira/browse/OOZIE-1989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14123462#comment-14123462
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Purshotam Shah commented on OOZIE-1989:
---------------------------------------
We pulled OOZIE-1879 to our internal branch and it was causing some issue for
rerun with forks. We had to rollback OOZIE-1879.
We didn't analyze the rootcause. I will check the logs ( if they are still
available ) and update JIRA.
It cause be same NPE issue. Will confirm.
> NPE during a rerun with forks
> -----------------------------
>
> Key: OOZIE-1989
> URL: https://issues.apache.org/jira/browse/OOZIE-1989
> Project: Oozie
> Issue Type: Bug
> Components: core
> Affects Versions: 4.1.0
> Reporter: Robert Kanter
> Assignee: Robert Kanter
> Priority: Blocker
> Fix For: 4.1.0
>
> Attachments: OOZIE-1989.patch
>
>
> 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:
> {noformat}
> 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)
> {noformat}
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