[blazar][requirements] setuptools and python_version in upper constraints

Matthew Thode mthode at mthode.org
Wed Apr 13 15:02:49 UTC 2022

On 22-04-13 16:48:12, Pierre Riteau wrote:
> Hello,
> In the blazar project, we have been seeing a job timeout failure in
> openstack-tox-py39 affecting master and stable/yoga. tox starts the
> "lockutils-wrapper python setup.py testr --slowest --testr-args=" process
> which doesn't show progress until job timeout.
> It started happening sometime between 2022-03-10 16:01:39 (last success on
> master) and 2022-03-24 16:35:15 (first timeout occurrence) [1], with no
> change in blazar itself and few changes in requirements.
> I resumed debugging today and managed to reproduce it using Ubuntu 20.04
> (it doesn't happen on macOS). Here is the traceback after interrupting it
> if anyone wants to take a look [2]. The python process is using 100% of the
> CPU until interrupted.
> I tracked down the regression to the upper constraint on setuptools. For
> example, stable/yoga has:
> setuptools===59.6.0;python_version=='3.6'
> setuptools===60.9.3;python_version=='3.8'
> It appears this is ignored in the py39 job so the job runs with the latest
> setuptools. Indeed, there were some releases between March 10 and March 24.
> I still have to figure out what changed in setuptools to cause this
> behaviour.
> Question for requirements maintainers: is this expected behaviour, or
> should upper constraints also include lines for python_version=='3.9' on
> yoga?
> Thanks,
> Pierre Riteau (priteau)
> [1]
> https://zuul.openstack.org/builds?job_name=openstack-tox-py39&project=openstack%2Fblazar&skip=0
> [2] https://paste.opendev.org/show/bZO7ELmTvfMUGJPdlQ4k/

I plan on removing py36 and adding py39 constraints today or tomorrow.

Matthew Thode
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