api: add some uwsgi flags
api: add some uwsgi flags

--thunder-lock is recommended when we mix threads and processes.
http://uwsgi-docs.readthedocs.io/en/latest/articles/SerializingAccept.html

"--hook-master-start", "unix_signal:15 gracefully_kill_them_all make
child receving sigterm instead of sigkill on exit. This should avoid having
some connections still in TIME-WAIT after the process stop.

sileht/gnocchi,sileht/gnocchi,gnocchixyz/gnocchi,gnocchixyz/gnocchi