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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3971) Add a resume feature to the copyFromLocal and put commands
Date Tue, 25 Sep 2012 20:40:07 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463192#comment-13463192

Robert Joseph Evans commented on HDFS-3971:

It almost sounds like you want to turn this into something like rsync.  I think it would be
much more useful to just add in an rsync command with a simmilar set of features and flags
then trying to reinvent it piecemeal.  Then it can look at time stamps on the files, and possibly
checksums as well, to pick up where it left off on a failure.
> Add a resume feature to the copyFromLocal and put commands
> ----------------------------------------------------------
>                 Key: HDFS-3971
>                 URL: https://issues.apache.org/jira/browse/HDFS-3971
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: tools
>    Affects Versions: 2.0.1-alpha
>            Reporter: Adam Muise
>            Priority: Minor
>             Fix For: 2.0.1-alpha
> Add a resume feature to the copyFromLocal command. Failures in large transfers result
in a great deal of wasted time. For large files, it would be good to be able to continue from
the last good block onwards. The file would have to be unavailable to other clients for reads
or regular writes until the "resume" process was completed. 

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