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https://issues.apache.org/jira/browse/HADOOP-9700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13706577#comment-13706577
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Binglin Chang commented on HADOOP-9700:
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bq. maybe we can first support a more generic scenario using snapshot?
Like Suresh said before, looks like this doesn't need any change to distcp,
just take a snapshot first, then call:
distcp <src>/.snapshot/<sn> <dest>
If you mean call createSnapshot inside discp then delete the snapshot after job
finished, I think it is reasonable.
> Snapshot support for distcp
> ---------------------------
>
> Key: HADOOP-9700
> URL: https://issues.apache.org/jira/browse/HADOOP-9700
> Project: Hadoop Common
> Issue Type: New Feature
> Components: tools/distcp
> 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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