[jira] [Assigned] (IMPALA-12212) Upgrade Maven to 3.9 to enable parallel dependency downloads

["Laszlo Gaal (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-12212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Laszlo Gaal reassigned IMPALA-12212:
------------------------------------

    Assignee: Laszlo Gaal

> 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
>
> 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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