Bogdan, I'd also like to ask: c) Does anyone have any experience with shovel in a "realistic" openstack environment? (or even a devstack one)
Thanks, dims On Mon, Jun 8, 2015 at 6:24 AM, Bogdan Dobrelya <bdobre...@mirantis.com> wrote: > Hello, stackers. > > I'd like to bring out a poll about deprecating the RabbitMQ mirrored > queues for HA layout and replacing the AMQP clustering by shovel [0], > [1]. I guess the federation would not be a good option, but let's > consider it as well. > > Why this must be done? The answer is that the rabbit cluster cannot > detect and survive "micro outages" well and just ending up with some > queues stuck and as a result, the rabbitmqctl control plane hanged > completely unresponsive (until the rabbit node erased and recovered its > cluster membership). These outages could be caused either by the network > *or* by CPU load spikes. For example, like this bug in Fuel project [2] > and this mail thread [3]. > > So, let's please vote and discuss. > > But the questions also are: > a) Would be there changes in Oslo.messaging required as well in order to > support the underlying AMQP layer architecture changes? > b) Are there any volunteers for this research to be done for the > Oslo.messaging AMQP rabbit driver? > > PS. Note, I'm not bringing RabbitMQ versions here as the issue seems > unresolved for any of existing ones. This seems rather the Erlang's > Mnesia generic clustering issue, than something what could be just fixed > in RabbitMQ, unless the mnesia based clustering would be dropped > completely ;) > > [0] https://www.rabbitmq.com/shovel-dynamic.html > [1] https://www.rabbitmq.com/shovel.html > [2] https://bugs.launchpad.net/fuel/+bug/1460762 > [3] https://groups.google.com/forum/#!topic/rabbitmq-users/iZWokxvhlaU > > -- > Best regards, > Bogdan Dobrelya, > Skype #bogdando_at_yahoo.com > Irc #bogdando > > _______________________________________________ > OpenStack-operators mailing list > openstack-operat...@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators -- Davanum Srinivas :: https://twitter.com/dims __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev