File exists: '/opt/stack/new/horizon/static/scss/assets'

[Joshua Harlow]

Seems like some kind of asset problem is occurring that is breaking the integrated gate.

File exists: '/opt/stack/new/horizon/static/scss/assets'

http://logs.openstack.org/81/120281/3/check/check-tempest-dsvm-neutron-full/fbe5341/logs/screen-horizon.txt.gz

This causes:

tempest.scenario.test_dashboard_basic_ops.TestDashboardBasicOps to the fail...

http://logs.openstack.org/81/120281/3/check/check-tempest-dsvm-neutron-full/fbe5341/logs/testr_results.html.gz

[Gary W. Smith (gary-w-smith)]

This appears to be related to https://bugs.launchpad.net/horizon/+bug/1345955

[Doug Fish (drfish)]

I think this issue is actually unrelated to https://bugs.launchpad.net/horizon/+bug/1345955

It looks like the problem here is a multithreading or multiprocess issue with file system access in django_pyscss/scss.py at line 161. It appears that django_pyscss is just ensuring the assets directory is created and fails with the obvious threading issue. I am surprised this happens so frequently.

Still, as a workaround I propose we just create the directory ourselves early in Horizon code by repeating the directory check/creation and ignoring any exceptions. If there is a legitimate failure (like from directory permissions or space issues) the problem will be rediscovered in the django_pyscss code and a meaningful exception can be thrown.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/123166

[Doug Fish (drfish)]

I have opened a bug for django_pyscss
https://github.com/fusionbox/django-pyscss/issues/23

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/123166
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=fc981d2e37e0a4a273f10853eb29194f32053e2c
Submitter: Jenkins
Branch: master

commit fc981d2e37e0a4a273f10853eb29194f32053e2c
Author: Doug Fish <email address hidden>
Date: Mon Sep 22 10:50:12 2014 -0500

    Workaround for 'File exists' test failure

    Adds code to create the assets directory that django_pyscss
    intends to create for scss. This avoids throwing an exception
    in concurrency scenarios

    Change-Id: Ic55e2a7ce59ec9b7550a7412697cb8d6563d98a3
    Closes-bug: #1367590