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https://issues.apache.org/jira/browse/HBASE-16822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15570758#comment-15570758
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Jerry He commented on HBASE-16822:
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In the Backup/Restore feature under discussion, this ticket can help too by
providing an alternative way to bulkloading during restore. Hopefully we can
restore/clone the full backup, which is an exported snapshot.
> Enable restore-snapshot and clone-snapshot to use external specified snapshot
> locatioin
> ----------------------------------------------------------------------------------------
>
> Key: HBASE-16822
> URL: https://issues.apache.org/jira/browse/HBASE-16822
> Project: HBase
> Issue Type: Improvement
> Reporter: Jerry He
>
> Currently restore-snapshot and clone-snapshot only work with the snapshots
> that are under hbase root.dir.
> In combination with export-snapshot, this means the snapshot needs to be
> exported out to another hbase root.dir, or back and forth eventually to a
> hbase root.dir.
> There are a few issues with the approach.
> We've known that export-snapshot has a limitation dealing with secure
> cluster, where the external user needs to have read access to hbase root.dir
> data, by-passing table ACL check.
> The second problem is when we try to use or bring back the exported snapshot
> for restore/clone. They have to be in the target hbase root.dir, and needs
> write permission to get it in there.
> Again we will have permission problem.
> This ticket tries to deal with the second problem, clone and restore from
> exported snapshots. The exported snapshots can be on the same cluster, but
> the user may not have write permission to move them to hbase root.dir.
> We should have a solution that allow clone/restore snapshot from an external
> path that keeps snapshot backups. And also do it with security permission in
> mind.
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