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GH-41964: [CI][C++] Clear cache for mamba on AppVeyor #41977
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It seems that mamba may use invalid download URL when there are invalid caches.
Wow. Is this something that should be reported to the mamba issue tracker? |
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+1, thanks a lot @kou
Hmm... Maybe no...? This is the last succeeded job before this problem is happen. Note that mamba 1.5.8 was selected: https://ci.appveyor.com/project/ApacheSoftwareFoundation/arrow/builds/49866639?fullLog=true#L90
This is the first failed job by this problem. Note that there are some solving failed messages and mamba 0.24.0 was selected. (mamba is updated to 1.5.8 later): https://ci.appveyor.com/project/ApacheSoftwareFoundation/arrow/builds/49867058#L88
I'm not sure whether this is related to this problem or not but our AppVeyor environment may be related. Because cleaning cache solved this problem. |
After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit 67c6df1. There were no benchmark performance regressions. 🎉 The full Conbench report has more details. |
Rationale for this change
It seems that mamba may use invalid download URL when there are invalid caches.
What changes are included in this PR?
Clear caches explicitly.
Are these changes tested?
Yes.
Are there any user-facing changes?
No.