[python-committers] Travis CI: macOS is now blocking -- remove macOS from Travis CI?

[Victor Stinner]

Hi,

I was bitten again by the issue on https://github.com/python/cpython/pull/3350

After restarting the Travis CI build twice (first by me, then by
Zach), I was able to merge it. But it's painful to have to restart a
whole build. And it wastes Travis CI resources :-(

So I just proposed to drop the macOS job: https://bugs.python.org/issue31355

Please read the issue for the full rationale.

Victor

2017-09-01 19:15 GMT+02:00 Victor Stinner <victor.stinner at gmail.com>:
> Hi,
>
> Since today, it seems like the macOS task of a Travis CI job to
> validate a pull request hangs the whole job.
>
> Don't try to cancel the macOS job, or the whole job will be marked as
> failed! ... even if macOS is in the "Allowed Failure" section. I don't
> know the best way to "repair" such job. I use "restart job" which
> restarts all tasks, even the completed *and successful* Linux and doc
> jobs.
>
> I have PRs waiting for longer than 2 hours for Travis CI. The macOS
> job is seen as "queued".
>
> Yesterday, it was possible to merge a PR even if the macOS job was
> still queued (no started).
>
> I never wait for macOS, since, as I wrote, it can take longer than 1
> hour. Moreover, macOS failures are not reported to the GitHub UI :-(
> (Hum, in fact, I'm not sure about that.)
>
> Maybe we should remove the pre-commit macOS task from the Travis CI
> config to focus on post-commit macOS buildbots? If we remove it,
> should we remove it from 2.7, 3.6 and master branches?
>
> We have 3 macOS buildbots:
>
> * x86 Tiger 3.x
> * x86-64 El Capitan 3.x
> * x86-64 Sierra 3.x
>
> All three are currently green ;-)
>
> In the last 3 months, the macOS task of Travis CI caused multiple issues :-/
>
> Victor