ansible/changelogs/fragments/py26-multiprocess-queue-bug.yml
Sam Doran 581337a6d5
[stable-2.10] Fix super annoying Python 2.6 multiprocessing.Queue stack trace in CI (#72604) (#72608)
* Fix super annoying Python 2.6 multiprocessing.Queue stack trace in CI

A bug exists in Python 2.6 that sometimes raises an exception during interpreter shutdown. We
encounter this frequently in our CI since we run tests on CentOS 6 as the control node, which
has Python 2.6.6 with this bug.

This PR adds a very minor sleep only on Python 2.6 which gets around this issue. I did lot of testing
using a standalon script I found that easily duplicated the issue to find the minimum sleep value
needed to avoid this issue.

CPython issue: https://bugs.python.org/issue4106
Fix in CPython: https://hg.python.org/cpython/rev/d316315a8781

* Use correct attribute
(cherry picked from commit bbef250c2b)

Co-authored-by: Sam Doran <sdoran@redhat.com>
2020-11-20 13:10:11 -06:00

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bugfixes:
- account for bug in Python 2.6 that occurs during interpreter shutdown to avoid stack trace