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https://issues.apache.org/jira/browse/HBASE-14128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15089312#comment-15089312
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Enis Soztutar commented on HBASE-14128:
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This came up in the dev list again.
Skimmed the patch. Looks good to go. Matteo, is there anything else to do for
this. I can help if you don't have time.
> Fix inability to run Multiple MR over the same Snapshot
> -------------------------------------------------------
>
> Key: HBASE-14128
> URL: https://issues.apache.org/jira/browse/HBASE-14128
> Project: HBase
> Issue Type: Bug
> Components: mapreduce, snapshots
> Reporter: Matteo Bertozzi
> Assignee: santosh kumar
> Priority: Minor
> Labels: beginner, noob
> Attachments: HBASE-14128-v0.patch
>
>
> from the list, running multiple MR over the same snapshot does not work
> {code}
> public static void copySnapshotForScanner(Configuration conf, FileSystem ..
> RestoreSnapshotHelper helper = new RestoreSnapshotHelper(conf, fs,
> manifest, manifest.getTableDescriptor(), restoreDir, monitor, status);
> {code}
> the problem is that manifest.getTableDescriptor() will try to clone the
> snapshot with the same target name. ending up in "file already exist"
> exceptions.
> we just need to clone that descriptor and generate a new target table name
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