On Sep 19, 2014, at 10:34 AM, Ken Giusti <kgiu...@gmail.com> wrote: > On Mon Sep 8 15:18:35 UTC 2014, Doug Hellmann wrote: >> On Sep 8, 2014, at 10:35 AM, Antonio Messina <antonio.s.messina at >> gmail.com> wrote: >> >>> Hi All, >>> >>> We tested briefly ZeroMQ with Havana last year, but we couldn't find >>> any good documentation on how to implement it, and we were not able to >>> get it working. We also got the impression that the support was not at >>> all mature, so we decided to use RabbitMQ instead. >>> >>> However, I must say that the broker-less design of ZeroMQ is very >>> appealing, and we would like to give it a try, assuming >>> 1) the documentation is improved >>> 2) there is some assurance that support for ZeroMQ is not going to be >>> dropped. >>> >>> I can help with 1) if there is someone that knows a bit of the >>> internals and can bootstrap me, because I have no first hand >>> experience on how message queues are used in OpenStack, and little >>> experience with ZeroMQ. >> >> Unfortunately, the existing Oslo team doesn’t have a lot of >> experience with ZeroMQ either (hence this thread). It sounds like Li >> Ma’s team has made it work, though, so maybe you could work >> together. We should prioritize documentation and then functional >> testing, I think. >> >> About 2), well this is a decision for the developers, but IMHO there >> *should* be support for ZeroMQ in OpenStack: its broker-less >> architecture would eliminate a SPoF (the message broker), could ease >> the deployment (especially in HA setup) and grant very high >> performance. >> >> I agree, it would be useful to support it. This is purely a resource >> allocation problem for me. I don't have anyone willing to do the work >> needed to ensure the driver is functional and can be deployed sanely >> (although maybe I’ve found a couple of volunteers now :-). >> >> There is another effort going on to support AMQP 1.0, which (as I >> understand it) includes similar broker-less deployment options. Before >> we decide whether to invest in ZeroMQ for that reason alone, it would >> be useful to know if AMQP 1.0 support makes potential ZeroMQ support >> less interesting. >> > > While the AMQP 1.0 protocol permits it, the current implementation of > the new driver does not support broker-less point-to-point - yet. > > I'm planning on adding that support to the AMQP 1.0 driver in the > future. I have yet to spend any time ramping up on the existing > brokerless support implemented by the zmq driver, so forgive my > ignorance, but I'm hoping to leverage what is there if it makes sense. > > If it doesn't make sense, and the existing code is zmq specific, then > I'd be interested in working with the zmq folks to help develop a more > generic implementation that functions across both drivers.
It would be great to have some common broker-less base class or something like that to share implementations, if that is possible. Doug > >> Doug > > > -- > Ken Giusti (kgiu...@gmail.com) > > _______________________________________________ > 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
