Jason Lowe created MAPREDUCE-4835:
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Summary: AM job metrics can double-count a job if it errors after
entering a completion state
Key: MAPREDUCE-4835
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4835
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mr-am
Affects Versions: 2.0.3-alpha, 0.23.6
Reporter: Jason Lowe
Priority: Minor
If JobImpl enters the SUCCEEDED, FAILED, or KILLED state but then encounters an
invalid state transition, it could double-count the job since jobs that
encounter an error are considered failed jobs. Therefore the job could be
counted initially as a successful, failed, or killed job, respectively, then
counted again as a failed job due to the internal error afterwards.
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