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https://issues.apache.org/jira/browse/MNG-5896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15071897#comment-15071897
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Michael Osipov commented on MNG-5896:
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You should try to build Nexus, this project requires time. I would be curious
to see the performance gain.
> Download dependency POMs in parallel
> ------------------------------------
>
> Key: MNG-5896
> URL: https://issues.apache.org/jira/browse/MNG-5896
> Project: Maven
> Issue Type: Improvement
> Components: Dependencies
> Affects Versions: 3.3.3
> Reporter: Harald Wellmann
>
> h3. Background
> When building a project with dependencies not yet available in the local
> repository, I noticed that Maven 3.3.3 first downloads the dependency POMs
> _sequentially_ and then proceeds downloading the dependency JARs with up to 5
> threads _in parallel_.
> Due to this, when first building a project with a large number of
> dependencies, downloading a large number of small POMs may take a lot longer
> than downloading the much larger JARs, or even longer than building the
> project itself, especially when a repository manager is used which increases
> the download latency.
> h3. Enhancement
> Download POMs of (transitive) dependencies in parallel to significantly speed
> up initial builds of large projects.
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