Backport trunk heuristics for failing maps when we get fetch failures
retrieving map output during shuffle
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Key: MAPREDUCE-2524
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2524
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: tasktracker
Affects Versions: 0.20.204.0
Reporter: Thomas Graves
Assignee: Thomas Graves
Priority: Minor
Fix For: 0.20.205.0
The heuristics for failing maps when we get map output fetch failures during
the shuffle is pretty conservative in 20. Backport the heuristics from trunk
which are more aggressive, simpler, and configurable.
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