[
https://issues.apache.org/jira/browse/HADOOP-3939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12626798#action_12626798
]
Tsz Wo (Nicholas), SZE commented on HADOOP-3939:
------------------------------------------------
> Would it make sense to require either -update or -overwrite if -delete is
> specified?
We should enforce that.
> The fix to FileStatus makes sense, but when is the Path null?
I hit this when creating a FileStatus by the default constructor and then put
is in some data structure (I forgot which data structure). The current
implementation does not need to this operation. So I will revert this change.
> DistCp should support an option for deleting non-existing files.
> ----------------------------------------------------------------
>
> Key: HADOOP-3939
> URL: https://issues.apache.org/jira/browse/HADOOP-3939
> Project: Hadoop Core
> Issue Type: New Feature
> Components: tools/distcp
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: 3939_20080825.patch, 3939_20080825b.patch,
> 3939_20080826.patch
>
>
> One use case of DistCp is to sync two directories. Currently, DistCp has an
> -update option for overwriting dst files if src is different from dst.
> However, it is not enough for sync. If there are some files in dst but not
> exist in src, there is no easy way to delete them. We should add a new
> option, say -delete, so that DistCp will delete the non-existing in dst.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
