CI: Collection of flukes #816
Description
Hi there,
within this issue, we are collecting some observations of flaky behavior on CI. It is meant to get the big picture, so that we can improve the robustness of the test suite gradually, by identifying the bad spots. To be able to do that, it is important to diligently record all observations here.
Most of the errors will be about concurrent file access going south, where specific tests are not appropriately marked with cflake, and the parallel testing based on pytest-xdist will hit concurrency issues.
With kind regards,
Andreas.