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Date: Fri, 14 Mar 2014 23:58:42 +0000 (UTC)
From: "Gary Helmling (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12503179.1301694425048.74124.1394841522869@arcas>
In-Reply-To: <JIRA.12503179.1301694425048@arcas>
References: <JIRA.12503179.1301694425048@arcas>
Subject: [jira] [Resolved] (HBASE-3726) Allow coprocessor callback RPC calls
 to be batched at region server level
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     [ https://issues.apache.org/jira/browse/HBASE-3726?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary Helmling resolved HBASE-3726.
----------------------------------

    Resolution: Duplicate

Closing as a duplicate of HBASE-10169

> Allow coprocessor callback RPC calls to be batched at region server level
> -------------------------------------------------------------------------
>
>                 Key: HBASE-3726
>                 URL: https://issues.apache.org/jira/browse/HBASE-3726
>             Project: HBase
>          Issue Type: Improvement
>          Components: Coprocessors
>            Reporter: Ted Yu
>
> Cuurently the Callback.update() method is called for each Call.call() return value obtained from each region.  Each Call.call() invocation is a separate RPC, so there is currently one RPC per region. So there's no place at the moment for the region server to be involved in any aggregation across regions.
> There is some preliminary support in HConnectionManager.HConnectionImplementation.processBatch() that would allow doing 1 RPC per region server, same as we do for multi-get and multi-put.
> We should provide ability to batch callback RPC calls.


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