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https://issues.apache.org/jira/browse/HADOOP-9700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Binglin Chang updated HADOOP-9700:
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Attachment: HADOOP-9700-demo.patch
Here is a simple demo patch to illustrate the idea. Basically, add a new option
-snapshot:
distcp -snapshot [fromSnapshot:]<toSnapshot> <src> <dest>
> 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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