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https://issues.apache.org/jira/browse/IMPALA-5001?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-5001:
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Issue Type: Improvement (was: Bug)
> Allow bootstrap_toolchain.py to update dependencies if toolchain version
> changes
> --------------------------------------------------------------------------------
>
> Key: IMPALA-5001
> URL: https://issues.apache.org/jira/browse/IMPALA-5001
> Project: IMPALA
> Issue Type: Improvement
> Components: Infrastructure
> Affects Versions: Impala 2.9.0
> Reporter: Henry Robinson
> Priority: Major
>
> Currently, if you update a dependency without changing its version, and run
> {{bin/bootstrap_toolchain.py}}, it won't download the new dependency.
> This is a problem for situations like IMPALA-4983 where we want to change the
> build flags but don't have a new version number.
> My suggestion is to use the toolchain build ID as a 'version' parameter, and
> write that to disk. If the toolchain ID changes, {{bootstrap_toolchain.py}}
> should detect that case and redownload all dependencies. Although it's
> suboptimal to download *all* dependencies, it's better than not downloading
> enough of them.
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