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Date: Wed, 24 Jun 2009 18:25:07 -0700 (PDT)
From: "Hoss Man (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-1709) Parallelize Tests
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    [ https://issues.apache.org/jira/browse/LUCENE-1709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12723850#action_12723850 ] 

Hoss Man commented on LUCENE-1709:
----------------------------------

if you're looking to extend ant it might be better to tackle that on the dev@ant list ... there's only two or three ant hackers i can think of in the lucene community (and a lot in the ant community)

I would also suggest becoming familiar with these two links...
http://www.nabble.com/1.7.1---Beta-Vote-to16148645.html#a15698118
https://parallel-junit.dev.java.net/


As mentioned in the "Previous discussion" link: a simple way for lucene to get *some* paralllelization using existing ant functionality would be to extend (or make a variant) of our contrib-crawl so it could run the contrib tests in parallel (contrib crawl can't be parallelized in the general case because some contribs have dependencies on other contribs and build them if they aren't already built)


> Parallelize Tests
> -----------------
>
>                 Key: LUCENE-1709
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1709
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>    Affects Versions: 2.4.1
>            Reporter: Jason Rutherglen
>             Fix For: 3.0
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> The Lucene tests can be parallelized to make for a faster testing system.  
> This task from ANT can be used: http://ant.apache.org/manual/CoreTasks/parallel.html
> Previous discussion: http://www.gossamer-threads.com/lists/lucene/java-dev/69669
> Notes from Mike M.:
> {quote}
> I'd love to see a clean solution here (the tests are embarrassingly
> parallelizable, and we all have machines with good concurrency these
> days)... I have a rather hacked up solution now, that uses
> "-Dtestpackage=XXX" to split the tests up.
> Ideally I would be able to say "use N threads" and it'd do the right
> thing... like the -j flag to make.
> {quote}

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