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https://issues.apache.org/jira/browse/LUCENE-3753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13201575#comment-13201575
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Dawid Weiss commented on LUCENE-3753:
-------------------------------------
Yes, this is what Mike's python magic does -- puts a fraction of all tests on
each slave, then assigns on-demand. I reimplemented this in Java and it works
quite nice as it can even consume precomputed statistics to make better
estimates. The problem is as always in details (which I won't trouble you with
at the moment). Robert is also right that re-running with different parameters/
JVM settings/ classpath will require multiple runs... for a moment I had a hope
to neglect this :)
The speedups aren't dramatic, especially after Robert worked on the longest
tests, so this is not a huge priority. Interestingly, Maven's latest release of
surefire also includes an option to do balanced parallel tests (on separate
vms). Didn't experiment with it yet.
> Restructure the Lucene build system
> -----------------------------------
>
> Key: LUCENE-3753
> URL: https://issues.apache.org/jira/browse/LUCENE-3753
> Project: Lucene - Java
> Issue Type: Improvement
> Components: general/build
> Affects Versions: 3.6, 4.0
> Reporter: Steven Rowe
> Assignee: Steven Rowe
> Attachments: LUCENE-3753.patch, LUCENE-3753.patch, LUCENE-3753.patch
>
>
> Split out separate core/, test-framework/, and tools/ modules, each with its
> own build.xml, under the lucene/ directory, similar to the Solr restructuring
> done in SOLR-2452.
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