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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-758) JobInProgressListener events might be garbled
Date Tue, 14 Jul 2009 06:49:14 GMT
JobInProgressListener events might be garbled

                 Key: MAPREDUCE-758
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-758
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: jobtracker
            Reporter: Amar Kamat

Consider the following scenario 
# EagerTaskInitializer calls jobtracker.initJob(obj1)
# initJob will snapshot the job run-state to PREP
# Before initJob() issues job1.initTask(), user issues a kill and the job now moves to KILLED
state. The jobtracker updates the listener about the PREP->KILLED event.
# Now initJob() issues a job1.initTask() which comes out nicely.
# initJob() now snapshots the job state it will be KILLED
# jobtracker now updates the listener with PREP->KILLED event which is incorrect

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