Any mysql DB drivers (I think the majority of openstack deployments use mysql?).
How about sqlalchemy (what would possibly need to change there for it to work)? The pain that I see is that to connect all these libraries into asyncio they have to invert how they work (sqlalchemy would have to become asyncio compatible (?), which probably means a big rewrite). This is where it would be great to have a 'eventlet' like-thing built ontop of asyncio (letting existing libraries work without rewrites). Eventually I guess in-time (if tulip succeeds) then this 'eventlet' like-thing could be removed. Has there been commitment from library developers to start adjusting there libraries to follow this new model (openstack has over 100+ dependencies so each one would seem to have to change, especially if it has any sort of I/O capabilities)? -----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: Wednesday, February 5, 2014 at 3:00 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 >Hi, > >Chris Behrens wrote: >> Interesting thread. I have been working on a side project that is a >> gevent/eventlet replacement [1] that focuses on thread-safety and >> performance. This came about because of an outstanding bug we have with >> eventlet not being Thread safe. (We cannot safely enable thread pooling >>for >> DB calls so that they will not block.) > >There are DB drivers compatible with asyncio: PostgreSQL, MongoDB, Redis >and memcached. > >There is also a driver for ZeroMQ which can be used in Oslo Messaging to >have a more efficient (asynchronous) driver. > >There also many event loops for: gevent (geventreactor, gevent3), >greenlet, libuv, GLib and Tornado. > >See the full list: >http://code.google.com/p/tulip/wiki/ThirdParty > >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
