Tassapol Athiapinya created MAPREDUCE-5533:
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Summary: Speculative execution does not function for reduce
Key: MAPREDUCE-5533
URL: https://issues.apache.org/jira/browse/MAPREDUCE-5533
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: applicationmaster
Reporter: Tassapol Athiapinya
Fix For: 2.1.1-beta
We have sort job where reduce attempt does not send heartbeat in timely manner
to application master. The AM should kick off another attempt to let job
succeeds. What we find is the job fails and there is no speculation happening.
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