Show why the job failed (e.g. Job ___ failed because task ____ failed 4 times)
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Key: MAPREDUCE-2075
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2075
Project: Hadoop Map/Reduce
Issue Type: New Feature
Reporter: Koji Noguchi
Priority: Minor
Fix For: 0.22.0
When our users have questions about their jobs' failure, they tend to
copy&paste all the userlog exceptions they see on the webui/console. However,
most of them are not the one that caused the job to fail. When we tell them
'This task failed 4 times", sometimes that's enough information for them to
solve the problem on their own.
It would be nice if jobclient or job status page shows the reason for the job
being flagged as fail.
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