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From "Chen He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3182) loadgen ignores -m command line when writing random data
Date Fri, 11 Apr 2014 19:45:19 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13967012#comment-13967012
] 

Chen He commented on MAPREDUCE-3182:
------------------------------------

I will take look at this issue. 

> loadgen ignores -m command line when writing random data
> --------------------------------------------------------
>
>                 Key: MAPREDUCE-3182
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3182
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, test
>    Affects Versions: 0.23.0, 0.24.0
>            Reporter: Jonathan Eagles
>
> If no input directories are specified, loadgen goes into a special mode where random
data is generated and written. In that mode, setting the number of mappers (-m command line
option) is overridden by a calculation. Instead, it should take into consideration the user
specified number of mappers and fall back to the calculation. In addition, update the documentation
as well to match the new behavior in the code.



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