[jira] Commented: (HBASE-2002) Coprocessors: Client side support

["HBase Review Board (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-2002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12932296#action_12932296 ] 

HBase Review Board commented on HBASE-2002:
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Message from: stack@duboce.net

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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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