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From "Jason Rutherglen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1709) Parallelize Tests
Date Thu, 25 Jun 2009 20:46:08 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12724277#action_12724277
] 

Jason Rutherglen commented on LUCENE-1709:
------------------------------------------

{quote} 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) {quote}

I'd like to get test-core multithreaded. In looking at the
ant-junit code, it's unfortunately not easy (as noted in the
links) to execute the batchtest(s) in parallel. So agreed that
the most obvious solution belongs in the the ant world. However
I still hold out some hope for a custom interim solution.

> 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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