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https://issues.apache.org/jira/browse/HADOOP-5173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12700316#action_12700316
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Tsz Wo (Nicholas), SZE commented on HADOOP-5173:
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After a job is submitted, the map/reduce frame control how the job runs and how
to handle the failures.
As shown in the output (distcp.txt), you may "consider running with -i".
> When disctp is used to overwrite a file, it should return immediately with an
> error message
> -------------------------------------------------------------------------------------------
>
> Key: HADOOP-5173
> URL: https://issues.apache.org/jira/browse/HADOOP-5173
> Project: Hadoop Core
> Issue Type: Improvement
> Components: tools/distcp
> Affects Versions: 0.18.3
> Reporter: Ramya R
> Priority: Minor
> Fix For: 0.18.4
>
> Attachments: distcp.txt
>
>
> When disctp is triggered to copy a directory to an already existing file, it
> just shows a "copy failed" error message after 4 attempts without showing any
> useful error message. This is extremely time consuming on a large cluster and
> especially when the directory being copied contains several sub-directories.
> Instead, it would be an improvement if distcp could return immediately
> displaying a useful error message when an user attempts such an operation.
> (This is an unlikely situation but still a valid test case)
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