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https://issues.apache.org/jira/browse/SOLR-10023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15834636#comment-15834636
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Dawid Weiss commented on SOLR-10023:
------------------------------------
Trimmed stuff a bit with:
{code}
grep ": finished" stdout | grep "^property" -v | grep -v "0ms" | grep "Target"
{code}
Looks like the recursion is doing things over and over again.
{code}
Target compile-morphlines-core: finished Mon Jan 23 08:14:53 EST 2017 (3473ms)
Target compile-morphlines-core: finished Mon Jan 23 08:15:04 EST 2017 (7737ms)
Target compile-morphlines-core: finished Mon Jan 23 08:15:22 EST 2017 (9247ms)
{code}
and everything adds up eventually (jar resolving, compilations, etc.).
Unfortunately ANT is very dumb at multi-module dependencies so I don't even
know where to begin fixing this... Maybe we should reopen LUCENE-5755? :)
> 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: 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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