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https://issues.apache.org/jira/browse/HADOOP-1336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marco Nicosia updated HADOOP-1336:
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My whole point is that users do not know that they need to choose to turn that 
option off. Why do that, instead of letting the users who want to enable the 
feature choose to turn that option ON?


> turn on speculative execution by defaul
> ---------------------------------------
>
>                 Key: HADOOP-1336
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1336
>             Project: Hadoop
>          Issue Type: Task
>          Components: mapred
>    Affects Versions: 0.12.3
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>             Fix For: 0.14.0
>
>         Attachments: spec-exec.patch
>
>
> Now that speculative execution is working again, we should enable it by 
> default.

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