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From "Jim Kellerman (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-576) Investigate IPC performance
Date Fri, 11 Apr 2008 21:12:04 GMT
Investigate IPC performance

                 Key: HBASE-576
                 URL: https://issues.apache.org/jira/browse/HBASE-576
             Project: Hadoop HBase
          Issue Type: Improvement
          Components: ipc
    Affects Versions: 0.1.0, 0.2.0, 0.1.2, 0.1.1
            Reporter: Jim Kellerman

Turning off all file I/O, and running the PerformanceEvaluation test, of 1,048,576 sequential
writes to HBase managed to achieve only 7,285 IPCs per second.

Running PerformanceEvaluation sequential write test modified to do an abort instead of a commit,
it was possible to do 68,337 operations per second. We are obviously spending a lot of time
doing IPCs. 

We need to investigate to find the bottleneck. Marshalling and unmarshalling? Socket setup
and teardown?

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