zhihai xu created MAPREDUCE-6144:
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Summary: DefaultSpeculator always add both MAP and REDUCE
Speculative task even MAP_SPECULATIVE or REDUCE_SPECULATIVE is disabled.
Key: MAPREDUCE-6144
URL: https://issues.apache.org/jira/browse/MAPREDUCE-6144
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2
Reporter: zhihai xu
Assignee: zhihai xu
DefaultSpeculator always add both MAP and REDUCE Speculative task even
MAP_SPECULATIVE or REDUCE_SPECULATIVE is disabled.
If both MAP_SPECULATIVE and REDUCE_SPECULATIVE are disabled,
DefaultSpeculator won't start.
The issue will happen if only one of MAP_SPECULATIVE and REDUCE_SPECULATIVE is
enabled, both MAP and REDUCE Speculative task are generate.
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