Comment 1 for bug 1717265

I looked at a recent CI run to see if I could find it in another env. It was in the first one I looked.

http://logs.openstack.org/02/503002/1/check/gate-tripleo-ci-centos-7-containers-multinode/d6b526a/logs/undercloud/var/log/mistral/executor.log.txt.gz#_2017-09-12_15_00_04_852

As this is a background task, CI will never fail when it fails - we maybe need to make that happen, just so we can verify it more easily.