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https://issues.apache.org/jira/browse/IMPALA-9107?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-9107:
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Priority: Major (was: Critical)
> Reduce time spent downloading maven artifacts for precommit tests
> -----------------------------------------------------------------
>
> Key: IMPALA-9107
> URL: https://issues.apache.org/jira/browse/IMPALA-9107
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend, Infrastructure
> Affects Versions: Impala 3.4.0
> Reporter: Joe McDonnell
> Priority: Major
>
> When building Impala from scratch with an empty .m2 directory, maven needs to
> download a large number of jars and pom files. This is taking a long time and
> adds about 15-20 minutes to the build. For example, here is some output from
> a recent ubuntu-16.04-from-scratch, there is an 18 minute delay between the
> end of building the backend tests and the end of building the frontend:
> {code:java}
> 00:58:33 [100%] Built target hash-ring-util
> ...
> 01:16:37 [100%] Built target fe{code}
> Almost all of that time is spent downloading maven artifacts. Quite a few
> come from the maven central repository.
> This is taking way too much time, and we need to reduce it. The total size of
> artifacts being downloaded is not large. One approach would be to produce a
> tarball with the jars/poms that don't come from the CDP or CDH GBN repos. We
> can download that tarball and use it to either populate the .m2 directory or
> to stash it in IMPALA_TOOLCHAIN and use it as a maven repository with a
> file:// URI.
> This impacts all our jobs: ubuntu-16.04-from-scratch,
> ubuntu-16.04-dockerised-tests, all-build-options-ub1604,
> ubuntu-16.04-build-only, clang-tidy-ub1604
>
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