py34 tests hang forever

[Brian Curtin]

py34 jobs in Jenkins are failing, and you can reproduce this if you "tox -r". This will cause the test suite to run forever and you'll end up with python3.4 processes you'll need to kill manually.

[Brian Curtin (brian.curtin)]

This works: git checkout b067250080e6cc434563a2b507abe6f99fc3e73d && tox -r
The next change hangs on py34: git checkout 40fc003f0fbff5c0216ca2eaea7c79a77db5cbf5 && tox -r

I can't explain how subsequent check and gate jobs were able to succeed after that went through, including that change by itself, but starting at 2015-02-21 21:15 the hang started showing up and has caused the last five reviews to run jobs to end up failing py34 after hanging for 40 minutes.

[Brian Curtin (brian.curtin)]

Hmm, maybe it's not just that commit by itself. When on master, if you just change requirements.txt so six is 1.7.0 instead of 1.9.0, the hang still occurs.

[Brian Curtin (brian.curtin)]

Now b06725 also fails.

[Terry Howe (thowe-g)]

I assumed this was a problem someone else caused.

[Brian Curtin (brian.curtin)]

Actually I think it's httpretty, now that I see they released a new version yesterday.

[Brian Curtin (brian.curtin)]

(hit send earlier, sorry for extra noise)
One of the few times I was able to get any traceback out of the tests, something was going on inside a list related test which was using httpretty. I'll try tomorrow to get a more specific diagnosis if possible, but we may have to put a cap on the version in test-requirements.txt.

[Brian Curtin (brian.curtin)]

Ok, I think it's related to https://github.com/gabrielfalcao/HTTPretty/issues/221 which references https://github.com/gabrielfalcao/HTTPretty/pull/193 (by Dave Stanek, so this may have come up in Keystone).

[OpenStack Infra (hudson-openstack)]

Change abandoned by Brian Curtin (<email address hidden>) on branch: master
Review: https://review.openstack.org/158164
Reason: never mind, this has to go through global-requirements first

[Brian Curtin (brian.curtin)]

Submitted a change to openstack/requirements to have the 0.8.7 release skipped https://review.openstack.org/#/c/158165/

[Brian Curtin (brian.curtin)]

global-requirements changing again for 0.8.8 https://review.openstack.org/#/c/163664/ - fixed temporarily in fixgates.txt until we remove httpretty