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https://issues.apache.org/jira/browse/HBASE-8185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13613362#comment-13613362
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Ted Yu commented on HBASE-8185:
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In trunk and 0.94 branch, snapshot normally refers to HBASE-7290: online
snapshot where master coordination is involved. An enhancement to be developed
is the ability to retrieve records from a point in time snapshot without
restoring the full table to that snapshot.
I understand the intent of this JIRA better from your description above.
Thanks
> Feature to enable Client Side Scanning(Client side merging) in HBase.
> ---------------------------------------------------------------------
>
> Key: HBASE-8185
> URL: https://issues.apache.org/jira/browse/HBASE-8185
> Project: HBase
> Issue Type: New Feature
> Components: regionserver
> Affects Versions: 0.89-fb
> Reporter: Manukranth Kolloju
> Fix For: 0.89-fb
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> The motivation of this was to enable the client to be able to open the region
> scanner(and in turn open StoreScanners) and perform the merge on the client
> side. This will lower the cpu ops that are consumed by the RegionServer since
> the data is pulled directly from the datanode. In cases where the user is
> interested to perform a large scan on hbase data check-pointed at a point of
> time, we think that ClientSideScan(ClientSideMerge) would give a very high
> throughput as compared to using the ClientScanner in HTable.
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