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https://issues.apache.org/jira/browse/HADOOP-9700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13699426#comment-13699426
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Binglin Chang commented on HADOOP-9700:
---------------------------------------

bq. why do you need to make any change? 
I thought there is no way to express snapshot diff in distcp, right?

                
> Snapshot support for distcp
> ---------------------------
>
>                 Key: HADOOP-9700
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9700
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Binglin Chang
>            Assignee: Binglin Chang
>         Attachments: HADOOP-9700-demo.patch
>
>
> Add snapshot incremental copy ability to distcp, so we can do iterative 
> consistent backup between hadoop clusters. 

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