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Posted to dev@arrow.apache.org by "Neal Richardson (Jira)" <ji...@apache.org> on 2020/03/29 20:48:00 UTC

[jira] [Created] (ARROW-8266) [C++] Add backup mirrors for external project source downloads

Neal Richardson created ARROW-8266:
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             Summary: [C++] Add backup mirrors for external project source downloads
                 Key: ARROW-8266
                 URL: https://issues.apache.org/jira/browse/ARROW-8266
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Neal Richardson
            Assignee: Neal Richardson
             Fix For: 0.17.0


As we've seen a number of times, most recently with boost, our builds sometimes fail because of a failure to download bundled dependencies. To reduce this risk, we can add alternate URLs to the cmake externalprojects, so that it will attempt to download from the second location if the first fails (https://cmake.org/cmake/help/latest/module/ExternalProject.html). This feature is available in cmake >=3.7. 



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