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https://issues.apache.org/jira/browse/HADOOP-2028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12533931
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Chris Douglas commented on HADOOP-2028:
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Since it doesn't do a reduce, distcp uses mapred.output.dir for its "logs".
Would it be reasonable to generate and use a random subdirectory in the
user-specified log directory?
> distcp fails if log dir not specified and destination not present
> -----------------------------------------------------------------
>
> Key: HADOOP-2028
> URL: https://issues.apache.org/jira/browse/HADOOP-2028
> Project: Hadoop
> Issue Type: Bug
> Components: util
> Reporter: Chris Douglas
> Priority: Blocker
> Fix For: 0.15.0
>
> Attachments: 2028.patch
>
>
> The default location for distcp logs is in the destination directory; when
> that doesn't exist, distcp exits with an error.
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