[openstack-dev] [oslo]: implementing olso.messaging over amqp 1.0

Gordon Sim gsim at redhat.com
Mon Dec 16 10:37:20 UTC 2013

On 12/12/2013 02:14 PM, Flavio Percoco wrote:
> I've a draft in my head of how the amqp 1.0 driver could be
> implemented and how to map the current expectations of the messaging
> layer to the new protocol.
> I think a separate thread to discuss this mapping is worth it. There
> are some critical areas that definitely need more discussion

I have also been looking at this, and trying to write up a simple design 
notes. Some of the questions that occurred to me while doing so are:

* Use one link for all sends, with 'to' field set, or use a link for 
each target?

* How to handle calls to one of a group of servers?

* Use a distinct response address per request, or allow an address to be 
shared by multiple requests in conjunction with correlation id on responses?

* Support both intermediated and direct communication? For all patterns?

The aim in my view should be to have the driver support as many 
alternatives in deployment as possible without overcomplicating things, 
distorting the mapping or introducing server specific extensions.

I have some notes to share if anyone is interested. I can send them to 
this list or put them upon the wiki or an etherpad or something.


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