Unfortunately this commit moving Kombu to 4.6.4 a day ago has broken the devstack setup scripts.

https://opendev.org/openstack/requirements/commit/b236f0af43259959cb2a0f82880cebbdd0da7f27

It breaks because (I believe) Eventlet is monkey patching and kombu 4.6.4 interacts badly. See these two bug reports for more details.

https://github.com/eventlet/eventlet/issues/534

https://github.com/nameko/nameko/issues/655

Kombu 4.6.4 now results in this error when running

/usr/local/bin/nova-manage --config-file /etc/nova/nova.conf api_db sync

2019-08-16 22:56:25.446 |   File "/usr/local/lib/python3.7/dist-packages/eventlet/green/os.py", line 107, in open
2019-08-16 22:56:25.446 |     fd = __original_open__(file, flags, mode, dir_fd=dir_fd)
2019-08-16 22:56:25.446 | TypeError: open: path should be string, bytes or os.PathLike, not _NormalAccessor

You can see full logs here.

http://openstack-logs.purestorage.com/PureISCSIDriver-tempest-dsvm-xenial-aio-multipath-chap/4816/logs/devstacklog.txt.gz

I'm open to any recommendation of a workaround. Downgrading to kombu 4.6.3 apparently works fine but I'm not sure how to do that within an automated devstack run.

Thanks