On Thu, May 10, 2012 at 3:57 AM, Julien Danjou <[email protected]>wrote:
> On Wed, May 09 2012, Doug Hellmann wrote: > > > I'm not sure what you mean. I was able to use nova.service to create a > > "metering" server and a simple manager that subscribes to the > notification > > events. See https://github.com/dhellmann/metering-prototype(metering-test > > is the main program and testmanager.py is the manager class). I borrowed > > your Connection code. > > Actually, the Service class is supposed to handle the AMQP (or whatever > backend) connection itself and bind it to a set of topics. But it uses > the nova.rpc.impl_kombu.Connection class that uses ProxyCallback and > that one obviously fails to decode notification. This is why I say I > failed to the Service class. > > You cheated since you opened another AMQP connection in your Manager > class, rendering the connection from the Service class useless. I wish > we could access the connection from the Service from the Manager so we > can reuse it at least, but that does not seem possible neither. > "Cheated" is a bit harsh. :-) Yeah, I wanted to use the handle owned by the service, but couldn't get to it. I thought asking for a connection without specifying that it had to be a new one would be a work-around. I was surprised that the manager object wasn't given access to the service so it could subscribe to messages, but I guess that's supposed to be the Service's job. > > On the other hand, even if it's not the cleanest way to do things, I > kind of like using the Service class so I'll probably grab your code > anyway. :-) > It does give us access to other parts of the framework like logging. And we may eventually find a need to communicate with the service via RPC. > > Thanks Doug, > -- > Julien Danjou > // eNovance http://enovance.com > // ✉ [email protected] ☎ +33 1 49 70 99 81 >
_______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
