If you hadn't noticed yet, the n-cpu logs are super chatty due to privsep logging everything from debug=True at warning level: http://logs.openstack.org/15/355215/1/check/gate-tempest-dsvm-neutron-src-python-novaclient/b92bced/logs/screen-n-cpu.txt.gz?level=TRACE I opened a bug for this awhile back: https://bugs.launchpad.net/os-brick/+bug/1593743 There are some competing patches between Angus and Walter: https://review.openstack.org/#/c/350415/ https://review.openstack.org/#/c/339275/ Both turn down the noise so we need to get one of the merged for Newton before the non-client library release freeze because I don't want to ship Newton with noise in the logs like this. I think we could approve Angus' and maybe iterate/improve on it later for what Walter wants, which is making oslo.privsep logging more configurable like processutils so the caller can get the captured stdout/stderr and decide what to do with it. -- Thanks, Matt Riedemann