[jira] [Commented] (MRESOLVER-7) Download dependency POMs in parallel

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MRESOLVER-7?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17577100#comment-17577100 ] 

ASF GitHub Bot commented on MRESOLVER-7:
----------------------------------------

Eskibear commented on PR #178:
URL: https://github.com/apache/maven-resolver/pull/178#issuecomment-1208851614

   Any updates on this PR? Can we expect it to be merged soon?
   
   I'm a contributor of [JDT Language Server](https://github.com/eclipse/eclipse.jdt.ls), and one of our core component [m2e](https://github.com/eclipse-m2e/m2e-core) is depending on maven-resolver. We've been observing that downloading poms one by one takes a lot of time when importing Maven projects. To be honest, it's one of our performance bottleneck and we can hardly improve it on our own, in downstream... So it would be great if this improvement can be shipped in coming releases.




> Download dependency POMs in parallel
> ------------------------------------
>
>                 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
>            Priority: Major
>         Attachments: 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.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)