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Posted to dev@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2008/04/15 00:35:07 UTC

[jira] Commented: (HBASE-576) Investigate IPC performance

    [ https://issues.apache.org/jira/browse/HBASE-576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12588829#action_12588829 ] 

stack commented on HBASE-576:
-----------------------------

We should check out Dennis's patch: HADOOP-3053

> 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: 0.2.0, 0.1.2, 0.1.0, 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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