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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-11766) Backdoor CoprocessorHConnection is no longer being used for local writes
Date Sat, 16 Aug 2014 03:24:18 GMT
James Taylor created HBASE-11766:
------------------------------------

             Summary: Backdoor CoprocessorHConnection is no longer being used for local writes
                 Key: HBASE-11766
                 URL: https://issues.apache.org/jira/browse/HBASE-11766
             Project: HBase
          Issue Type: Bug
    Affects Versions: 0.98.4
            Reporter: James Taylor


There's a backdoor CoprocessorHConnection used to ensure that a batched mutation does not
go over the wire and back, but executes immediately locally. This is leveraged by Phoenix
during secondary index maintenance (for an ~20% perf improvement). It looks to me like it's
no longer used, as the following function is never invoked:

  public org.apache.hadoop.hbase.protobuf.generated.ClientProtos.ClientService.BlockingInterface
      getClient(ServerName serverName) throws IOException {

It'd be good if feasible to add an HBase unit test to prevent further regressions. For more
info, see PHOENIX-1166.



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