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From "Lefty Leverenz (JIRA)" <>
Subject [jira] [Commented] (HIVE-7271) Speed up unit tests
Date Wed, 25 Jun 2014 07:34:24 GMT


Lefty Leverenz commented on HIVE-7271:

This adds configuration parameter *hive.exec.submit.local.task.via.child* to,
so it needs a description in hive-default.xml.template.

Or you can put the description in a release note, and I'll make sure it gets into the new
version of (which will include descriptions) after HIVE-6037 gets committed.

> Speed up unit tests
> -------------------
>                 Key: HIVE-7271
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Gunther Hagleitner
>            Assignee: Gunther Hagleitner
>              Labels: TODOC14
>         Attachments: HIVE-7271.1.patch, HIVE-7271.2.patch, HIVE-7271.3.patch, HIVE-7271.4.patch,
HIVE-7271.5.patch, HIVE-7271.6.patch, HIVE-7271.7.patch
> Did some experiments to see if there's a way to speed up unit tests. TestCliDriver seemed
to take a lot of time just spinning up/tearing down JVMs. I was also curious to see if running
everything on a ram disk would help.
> Results (I ran tests up to authorization_2):
> - Current setup: 40 minutes
> - Single JVM (not using child JVM to run all queries): 8 minutes
> - Single JVM + ram disk: 7 minutes
> So the ram disk didn't help that much. But running tests in single JVM seems worthwhile

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