Has there been any investigation into heat. Heat has already used parts of the coroutine approach (for better or worse).
An example: https://github.com/openstack/heat/blob/master/heat/engine/scheduler.py#L230 """ Decorator for a task that needs to drive a subtask. This is essentially a replacement for the Python 3-only "yield from" keyword (PEP 380), using the "yield" keyword that is supported in Python 2. For example:: """.... I bet trollius would somewhat easily replace a big piece of that code. -Josh -----Original Message----- From: victor stinner <victor.stin...@enovance.com> Reply-To: "OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org> Date: Thursday, February 6, 2014 at 1:55 AM To: "OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org> Subject: Re: [openstack-dev] Asynchrounous programming: replace eventlet with asyncio >Sean Dague wrote: >> First, very cool! > >Thanks. > >> This is very promising work. It might be really interesting to figure >> out if there was a smaller project inside of OpenStack that could be >> test ported over to this (even as a stackforge project), and something >> we could run in the gate. > >Oslo Messaging is a small project, but it's more a library. For a full >daemon, my colleague Mehdi Abaakouk has a proof-on-concept for Ceilometer >replacing eventlet with asyncio. Mehdi told me that he doesn't like to >debug eventlet race conditions :-) > >> Our experience is the OpenStack CI system catches bugs in libraries and >> underlying components that no one else catches, and definitely getting >> something running workloads hard on this might be helpful in maturing >> Trollius. Basically coevolve it with a piece of OpenStack to know that >> it can actually work on OpenStack and be a viable path forward. > >Replacing eventlet with asyncio is a huge change. I don't want to force >users to use it right now, nor to do the change in one huge commit. The >change will be done step by step, and when possible, optional. For >example, in Olso Messaging, you can choose the executor: eventlet or >blocking (and I want to add asyncio). > >Victor > >_______________________________________________ >OpenStack-dev mailing list >OpenStack-dev@lists.openstack.org >http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
