turn off speculative execution by default
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Key: HADOOP-827
URL: http://issues.apache.org/jira/browse/HADOOP-827
Project: Hadoop
Issue Type: Bug
Affects Versions: 0.9.1
Reporter: Owen O'Malley
Assigned To: Owen O'Malley
Fix For: 0.9.2
Currently, speculative execution reduces reliability. I want to turn it off by
default until it works well.
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