[jira] Updated: (HADOOP-3873) DistCp should have an option for limiting the number of files/bytes being copied

["Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-3873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsz Wo (Nicholas), SZE updated HADOOP-3873:
-------------------------------------------

    Attachment: 3873_20080808b.patch

3873_20080808b.patch: this is a first patch supporting the new "-filelimit" and "-sizelimit" options.  Need re-writing the shell messages and new tests.

> DistCp should have an option for limiting the number of files/bytes being copied
> --------------------------------------------------------------------------------
>
>                 Key: HADOOP-3873
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3873
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: tools/distcp
>            Reporter: Tsz Wo (Nicholas), SZE
>         Attachments: 3873_20080808b.patch
>
>
> A single DistCp command may potentially copies a huge number of files/bytes.  In such case, DistCp will run a long time and there is no way stop it nicely.  It would be good if DistCp have an option to limit the number of files/bytes being copied.  Once the limit is reached, DistCp will terminate and return success.  All files copied are guaranteed to be good and there is no partially copied file.

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