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http://jira.codehaus.org/browse/MNG-3222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_111999
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Stefan Behnel commented on MNG-3222:
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Since the report, it has become clear that the problem is the number of
snapshots our repository server stores. The number of snapshots in the local
repository does not seem to have a major impact. We found this by accident as
increasing the version number of our software cut the build time from about 4
hours down to 40 minutes.
I think some repository caching would really help here.
> Compile dependency resolution is slow
> -------------------------------------
>
> Key: MNG-3222
> URL: http://jira.codehaus.org/browse/MNG-3222
> Project: Maven 2
> Issue Type: Bug
> Components: Dependencies
> Affects Versions: 2.0.4
> Reporter: Stefan Behnel
> Assignee: Brett Porter
>
> Compile dependency resolution is slow. I just wrote an empty module (only
> test sources that were not compiled), and it took Maven more than five
> minutes to build it, without any compilation/generation/testing/whatsoever. I
> just took literally minutes to resolve a couple of hundred compile time
> dependencies for the compiler plugin, which was then executed twice.
> To me, this sounds like a problem with the algorithmic complexity of the
> dependency resolution.
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