[TEZ-2082] Race condition in TaskAttemptListenerImpTezDag.getTask()

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.7.0
• Fix Version/s: 0.7.0
• Hadoop Flags: Reviewed
• Assignee: Bikas Saha
• Reporter: Hitesh Shah
• Created: 11/Feb/15 21:07
• Updated: 30/Jun/15 04:52
• Resolved: 12/Feb/15 02:53

Description

From https://builds.apache.org/job/Tez-Build/891/testReport/junit/org.apache.tez.dag.app/TestPreemption/testPreemptionWithSession/

Exception in thread "Thread-27" java.lang.NullPointerException
at org.apache.tez.dag.app.TaskAttemptListenerImpTezDag.getTask(TaskAttemptListenerImpTezDag.java:222)
at org.apache.tez.dag.app.MockDAGAppMaster$MockContainerLauncher.run(MockDAGAppMaster.java:230)
at java.lang.Thread.run(Thread.java:662)