[jira] [Updated] (MRESOLVER-7) Download dependency POMs in parallel in BF collector

["Tamas Cservenak (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MRESOLVER-7?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tamas Cservenak updated MRESOLVER-7:
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    Summary: Download dependency POMs in parallel in BF collector  (was: Download dependency POMs in parallel)

> Download dependency POMs in parallel in BF collector
> ----------------------------------------------------
>
>                 Key: MRESOLVER-7
>                 URL: https://issues.apache.org/jira/browse/MRESOLVER-7
>             Project: Maven Resolver
>          Issue Type: Improvement
>          Components: Resolver
>    Affects Versions: Aether 1.0.2
>            Reporter: Harald Wellmann
>            Assignee: Tamas Cservenak
>            Priority: Major
>             Fix For: 1.9.0
>
>         Attachments: resolve_deps.png, resolver.log
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> h3. Background
> When building a project with dependencies not yet available in the local repository, I noticed that Maven 3.3.9/Aether 1.0.2 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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