Coprocessor : Add combiner at Region server level.
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Key: HBASE-5762
URL: https://issues.apache.org/jira/browse/HBASE-5762
Project: HBase
Issue Type: New Feature
Components: coprocessors
Affects Versions: 0.92.0
Reporter: Ravindra Pesala
End point coprocessors works on each region and send the result back to the
client.If there is a scenario like aggregating the values based on some key
patterns then we have to reduce all the results at the client side.
So if we can provide combiner( just like map/reduce) functionality at region
server level then all region results can be reduced at region server and send
the result to the client.This will reduce the network traffic as only single
result will be sent by each region server.
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