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https://issues.apache.org/jira/browse/HBASE-8185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13613352#comment-13613352
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Manukranth Kolloju commented on HBASE-8185:
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The use case we are trying to solve does not need a fully consistent snapshot
of the data. The region flush is optional and we are not currently considering
coordinating with the master while performing the flush over the entire table.
The snapshot thus produced will be a ragged edge snapshot. Ted Yu, do you see
any use cases that will be needing a consistent snapshot?
> 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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