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From "HBase Review Board (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2002) Coprocessors: Client side support
Date Tue, 16 Nov 2010 01:01:20 GMT

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