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https://issues.apache.org/jira/browse/MAPREDUCE-1936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12890501#action_12890501
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Chris Douglas commented on MAPREDUCE-1936:
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Small nits:
* Now that the {{\*IndexMapper}} classes are in {{RandomAlgorithms}}, they can 
be removed from {{FilePool}}
* In the usage, it could be clearer which parameters belong to the submission 
mode and job type
* {{mapMaxSleepTime}} and {{reduceMaxSleepTime}} can be final

Other than these, this looks good

> [gridmix3] Make Gridmix3 more customizable.
> -------------------------------------------
>
>                 Key: MAPREDUCE-1936
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1936
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: contrib/gridmix
>            Reporter: Hong Tang
>            Assignee: Hong Tang
>         Attachments: mr-1936-20100715.patch, mr-1936-yhadoop-20.1xx.patch
>
>
> I'd like to make gridmix3 more customizable. Specifically, the proposed 
> customizations include:
> - add (random) location information for each sleep map task.
> - make the parameters used in stress submission load throttling configurable.

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