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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-2002) Coprocessors: Client side support
Date Fri, 01 Oct 2010 19:25:41 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2002?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell updated HBASE-2002:
----------------------------------

         Assignee: Gary Helmling
    Fix Version/s: 0.90.0

> 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: 0.90.0
>
>
> "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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