Robert Kanter created OOZIE-1989:
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Summary: 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
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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