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https://issues.apache.org/jira/browse/IMPALA-12212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Smith resolved IMPALA-12212.
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Fix Version/s: Impala 4.3.0
Resolution: Fixed
> Upgrade Maven to 3.9 to enable parallel dependency downloads
> ------------------------------------------------------------
>
> Key: IMPALA-12212
> URL: https://issues.apache.org/jira/browse/IMPALA-12212
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend, Infrastructure
> Affects Versions: Impala 4.3.0
> Reporter: Laszlo Gaal
> Assignee: Laszlo Gaal
> Priority: Major
> Fix For: Impala 4.3.0
>
>
> Maven 3.9 introduced a new dependency resolver (the native HTTP
> resolver)[1][2], which offers the option of traversing a project's dependency
> tree in a breadth-first manner in addition to the old default depth-first
> traversal[3]. This new mode also enables the parallel download of dependency
> POMs (which had to happen in a serial, sequential way) with the old resolver.
> Impala should embrace the new download mechanism, as it could speed up the
> dependency download phase of the frontend build significantly.
> [1] https://maven.apache.org/docs/3.9.0/release-notes.html, [2]
> https://maven.apache.org/guides/mini/guide-resolver-transport.html
> [3] see the {{aether.dependencyCollector.impl}} option at
> https://maven.apache.org/resolver/configuration.html
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