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https://issues.apache.org/jira/browse/IMPALA-3192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17768924#comment-17768924
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Michael Smith commented on IMPALA-3192:
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Thought about this more, and we don't use anything more than name/version to
decide whether to rebuild, so this wouldn't be any different than re-using an
earlier local build.
> Toolchain build should be able to use prebuilt artifacts
> --------------------------------------------------------
>
> Key: IMPALA-3192
> URL: https://issues.apache.org/jira/browse/IMPALA-3192
> Project: IMPALA
> Issue Type: Task
> Components: Infrastructure
> Affects Versions: Impala 2.5.0
> Reporter: casey
> Priority: Minor
>
> The toolchain build should have an option (maybe the default) to only build
> what isn't already available for download. Currently, if you want to build
> the toolchain locally it builds everything. I think the most common use case
> for a local build is when you want to add something. In that case, you don't
> want to redo the work of building existing components, they can just be
> downloaded.
> This would also help avoid issues like
> https://issues.cloudera.org/browse/IMPALA-3191
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