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From "Chen He (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3182) loadgen ignores -m command line when writing random data
Date Mon, 14 Apr 2014 16:02:20 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chen He updated MAPREDUCE-3182:
-------------------------------

    Target Version/s: 2.5.0  (was: 0.23.0, 0.24.0)

> 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, 2.3.0
>            Reporter: Jonathan Eagles
>            Assignee: Chen He
>
> 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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