[ARROW-12887] [CI] AppVeyor pip install failure during setup

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 5.0.0
• Component/s: Continuous Integration
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/28617
• Assignee: Antoine Pitrou
• Reporter: Antoine Pitrou
• Created: 26/May/21 17:45
• Updated: 11/Jan/23 08:29
• Resolved: 27/May/21 13:49

Description

Last successful build:
https://ci.appveyor.com/project/ApacheSoftwareFoundation/arrow/builds/39249718
First failed build:
https://ci.appveyor.com/project/ApacheSoftwareFoundation/arrow/builds/39255805

pip install for clcache fails with a certificate verification error:
https://ci.appveyor.com/project/ApacheSoftwareFoundation/arrow/builds/39255805/job/e96cn9q9ohib5fuw#L523

For some reason, I cannot reproduce this on my fork (with the exact same CI configuration, presumably).

Issue Links

• links to: GitHub Pull Request #10407