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https://issues.apache.org/jira/browse/LUCENE-1709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848707#action_12848707
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Robert Muir commented on LUCENE-1709:
-------------------------------------
Thanks Jason.
So for newtrunk I applied a similar patch to speed up Solr's tests.
You can see it here: http://svn.apache.org/viewvc?rev=926470&view=rev
In this case the output is not interleaved because it uses a special formatter.
So it basically looks just like you are not using parallel at all.
Additionally -Dtestpackage, -Dtestpackageroot, -Dtestcase all work, the former
two are also parallelized.
So, I propose we do the same thing for Lucene tests.
Solr was simple because it does not have these junit failed flag files.
I propose we just remove these, like how Solr does contrib.
Hudson hasn't failed in over a month by the way.
> 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: 3.1
>
> Attachments: LUCENE-1709.patch, runLuceneTests.py
>
> 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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