When tasks exit with a nonzero exit status, task runner should log the stderr
as well as stdout
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Key: MAPREDUCE-2373
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2373
Project: Hadoop Map/Reduce
Issue Type: Improvement
Affects Versions: 0.22.0
Reporter: Todd Lipcon
Assignee: Todd Lipcon
Fix For: 0.22.0
Currently, if the taskjvm.sh script fails to exec java for some reason, it
prints its error message to stderr. This doesn't make it to the logs anywhere.
Logging the stderr is very useful to understand why taskjvm.sh failed to start
the Child jvm.
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