MapReduce AM exits prematurely before completely writing and closing the
JobHistory file
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Key: MAPREDUCE-3006
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3006
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: applicationmaster, mrv2
Affects Versions: 0.23.0
Reporter: Vinod Kumar Vavilapalli
Assignee: Vinod Kumar Vavilapalli
Fix For: 0.23.0
[~Karams] was executing a sleep job with 100,000 tasks on a 350 node cluster to
test MR AM's scalability and ran into this. The job ran successfully but the
history was not available.
I debugged around and figured that the job is finishing prematurely before the
JobHistory is written. In most of the cases, we don't see this bug as we have a
5 seconds sleep in AM towards the end.
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