[openstack-dev] Use the zmq as message backend for Opnestack components

M Ranga Swami Reddy swamireddy at gmail.com
Wed Aug 17 13:51:09 UTC 2016


Thank you very much...
I guess, change to zmq is a  configuration option (ie just change
nova.conf, etc) and restart the service will work..Correct me if not.

Majority of notifications comes from compute/NOVA and will be consumed by
Ceilometer. In this case, how nova message Q will syc with celiometer?

Thanks
Swami


On Wed, Aug 10, 2016 at 5:34 PM, Oleksii Zamiatin <ozamiatin at mirantis.com>
wrote:

> Hi,
>
> The general answer is: yes! it is possible for all services except
> Ceilometer yet.
>
> RPC use case is 100% covered, but Ceilometer uses Notifications which are
> partly supported
> in zmq backend because they need some persistence when consumer is not
> present etc.
>
> For all the other services (Nova, neutron, glance, cinder) you can run zmq
> RPC backend.
>
> For Ceilometer and Notifications there is a possibility to run another
> backend driver
> (some people are looking at kafka for example).
>
> To try zmq as RPC backend it is easier to start with devstack, for this
> please follow instructions in the guide [1].
>
> Feel free to ping me if you get some questions regarding further steps in
> zmq+Openstack
>
> 1 - http://docs.openstack.org/developer/oslo.messaging/zmq_
> driver.html#devstack-support
>
>
> > On Aug 10, 2016, at 14:36, M Ranga Swami Reddy <swamireddy at gmail.com>
> wrote:
> >
> > Hello,
> > I wanted to uset he zmq as message Q for all Openstack components
> > like, Nova, glance, cinder, Ceilmeter,etc (just replace the default
> > rabbitmq with zmq).
> >
> > Is it possible to do this?
> >
> > Please advise.
> >
> > Thanks
> > Swami
> >
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