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From "Navis (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-4484) Current hive is slower than previous versions
Date Fri, 03 May 2013 02:00:19 GMT
Navis created HIVE-4484:
---------------------------

             Summary: Current hive is slower than previous versions
                 Key: HIVE-4484
                 URL: https://issues.apache.org/jira/browse/HIVE-4484
             Project: Hive
          Issue Type: Task
         Environment: ubuntu 10.10, 4G, i7-8core
            Reporter: Navis


Comparing logs for various patches, I've found query execution become slower than before.
For example, (picked not-changed tests)

{noformat}
ppr_pushdown.q
135~140 sec : 2012-03-27 ~ 2012-07-17
140~160 sec : ~ 2012-11-28
160~220 sec : ~ 2013-03-30
220~250 src : ~ current (HIVE-4392)

join_nulls.q
295~310 sec : 2012-03-27 ~ 2012-07-17
310~330 sec : ~ 2012-11-28
330~370 sec : ~ 2013-03-30
400~460 src : ~ current (HIVE-4392)
{noformat}

This explains much on recent prolonged test time. It might be from changes on test framework.
But still need investigation before adding more functionality into hive.

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