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https://issues.apache.org/jira/browse/HBASE-4210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13088079#comment-13088079
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Lars Hofhansl commented on HBASE-4210:
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The motivation is generally the same as for batching on the client. There's
cost that can be amortized over a set of KVs.
Another reason is that inside a region we can do atomic operations (i.e. we can
actually use the rowlocks here), whereas on the client rowlocks are not
reliable.
I have no specific use cases at this point, though.
> Allow coprocessor to interact with batches per region sent from a client(?)
> ---------------------------------------------------------------------------
>
> Key: HBASE-4210
> URL: https://issues.apache.org/jira/browse/HBASE-4210
> Project: HBase
> Issue Type: New Feature
> Reporter: Lars Hofhansl
> Priority: Minor
>
> Currently the coprocessor write hooks - {pre|post}{Put|Delete} - are strictly
> one row|cell operations.
> It might be a good idea to allow a coprocessor to deal with batches of puts
> and deletes as they arrive from the client.
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