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Date: Fri, 20 May 2011 00:10:47 +0000 (UTC)
From: "Patrick Hunt (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
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Subject: [jira] [Commented] (HIVE-2174) unit tests fail consistently when
 run according to instructions on "hive how to contribute" page.
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    [ https://issues.apache.org/jira/browse/HIVE-2174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13036592#comment-13036592 ] 

Patrick Hunt commented on HIVE-2174:
------------------------------------

Thanks Ning, I updated the following page, perhaps you can review: http://wiki.apache.org/hadoop/Hive/HowToContribute

Any suggestions where else to look for instructions that should be fixed up? I grepped the latest codebase but didn't see anything obvious.

> unit tests fail consistently when run according to instructions on "hive how to contribute" page.
> -------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-2174
>                 URL: https://issues.apache.org/jira/browse/HIVE-2174
>             Project: Hive
>          Issue Type: Bug
>          Components: Build Infrastructure, Testing Infrastructure
>    Affects Versions: 0.7.1, 0.8.0
>            Reporter: Patrick Hunt
>            Priority: Critical
>
> The unit tests fail consistently when run according to the doc on hive how to contribute page. Specifically if you:
> 1) checkout the code afresh (or 'git clean -xdf' - basically be sure to start with a _very_ clean slate)
> 2) ant clean test tar -logfile ant.log
> the tests will fail (you can run just bucketmapjoin1.q instead of all the tests, it exhibits this behavior). However if you instead do the following 
> 2) ant clean package test tar -logfile ant.log
> the tests pass (notice the addition to package to the targets).
> I've tried this on 5 different systems (mix of linux 32/64 bit) and the result is consistent.
> Running
> ant clean test -Dtestcase=TestCliDriver -Dqfile=bucketmapjoin1.q
> I see the following reason for failure
> {quote}
>     [junit] 743c743
>     [junit] <                     numRows 0
>     [junit] ---
>     [junit] >                     numRows 464
>     [junit] 773c773
>     [junit] <               numRows 0
>     [junit] ---
>     [junit] >               numRows 464
>     [junit] 793c793
>     [junit] <                 numRows 0
>     [junit] ---
>     [junit] >                 numRows 464
> {quote}
> which leads me to believe it's a metastore issue (statistics?)

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