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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-3726) Allow coprocessor callback RPC calls to be batched at region server level
Date Fri, 01 Apr 2011 21:47:06 GMT
Allow coprocessor callback RPC calls to be batched at region server level
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                 Key: HBASE-3726
                 URL: https://issues.apache.org/jira/browse/HBASE-3726
             Project: HBase
          Issue Type: Improvement
          Components: coprocessors
            Reporter: Ted Yu
             Fix For: 0.92.0


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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