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HBase Review Board commented on HBASE-2002:
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Ship it!


I did a quick pass over this. Most I'd seen already over in the Minjgie patch. 
I'm +1 getting it into TRUNK now early in the release cycle so probs. surface 
before release (You going to commit Andrew?).

- stack





> Coprocessors: Client side support
> ---------------------------------
>
>                 Key: HBASE-2002
>                 URL: https://issues.apache.org/jira/browse/HBASE-2002
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Andrew Purtell
>            Assignee: Gary Helmling
>             Fix For: 0.92.0
>
>
> "High-level call interface for clients. Unlike RPC, calls addressed to rows 
> or ranges of rows. Coprocessor client library resolves to actual locations. 
> Calls across multiple rows automatically split into multiple parallelized 
> RPCs"
> Generic multicall RPC facility which incorporates this and 
> multiget/multiput/multidelete and parallel scanners.
> Group and batch RPCs by region server. Track and retry outstanding RPCs. Ride 
> over region relocations. 
> Support addressing by explicit region identifier or by row key or row key 
> range. 
> Include a facility for merging results client side. 

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