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https://issues.apache.org/jira/browse/SOLR-10023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15847579#comment-15847579
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Erick Erickson commented on SOLR-10023:
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Hmmm, it's embarrassing how long I do things the hard way sometimes. Mark just
commented that "changing to the module is faster". So I decided to try it.
Running "ant -Dtestcase=TestLazyCores test" takes about 2.5 minutes when run
from the root or root/solr. It takes 47 seconds when run from root/solr/core.
You can't go any farther down than root/solr/core.
Siiiigggggh.
> Improve single unit test run time with ant.
> -------------------------------------------
>
> Key: SOLR-10023
> URL: https://issues.apache.org/jira/browse/SOLR-10023
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Tests
> Reporter: Mark Miller
> Attachments: SOLR-10023-add-test-only-target.patch,
> SOLR-10023-add-test-only-target.patch, stdout.tar.gz
>
>
> It seems to take 2 minutes and 45 seconds to run a single test with the
> latest build design and the test itself is only 4 seconds. I've noticed this
> for a long time, and it seems because ant is running through a billion
> targets first.
> I haven't checked yet, so maybe it's a Solr specific issue? I'll check with
> Lucene and move this issue if necessary.
> There is hopefully something we can do to improve this though. At least we
> should try and get some sharp minds to take first / second look. If I did not
> use an IDE so much to run tests, this would drive me nuts.
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