Coprocessors: Client side support
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Key: HBASE-2002
URL: https://issues.apache.org/jira/browse/HBASE-2002
Project: Hadoop HBase
Issue Type: Sub-task
Reporter: Andrew Purtell
"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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