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Posted to notifications@accumulo.apache.org by "Eric Newton (JIRA)" <ji...@apache.org> on 2016/01/20 17:55:39 UTC

[jira] [Created] (ACCUMULO-4114) examine performance decrease with many tablets

Eric Newton created ACCUMULO-4114:
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             Summary: examine performance decrease with many tablets
                 Key: ACCUMULO-4114
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4114
             Project: Accumulo
          Issue Type: Task
          Components: client, tserver
            Reporter: Eric Newton
            Assignee: Eric Newton
             Fix For: 1.8.0


While writing a performance test for ACCUMULO-4112, I noticed the performance drop for large numbers of tablets hosted on a single server.
Some decrease in performance is expected since the various queues and buffers are being divided among a greater number of tablets, but a 5x decrease is unexpected.  Given other fixes (ACCUMULO-3423, for example) I would not expect performance to drop off so dramatically.

Investigate the performance of conditional updates going to many tablets, vs one tablet.




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