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From Murali Reddy <>
Subject Re: Messaging Subscriber Process - Was: ([Discuss] SNMP Alerts support in CloudStack)
Date Mon, 07 Jan 2013 13:02:58 GMT

On 04/01/13 8:19 PM, "Chip Childers" <> wrote:

>Splitting this out of the SNMP thread, as I think it needs it's own
>On Thu, Jan 3, 2013 at 6:56 PM, Chiradeep Vittal
><> wrote:
>> Why would CloudStack need an API to register subscribers?
>> Wouldn┬╣t they directly go to the broker?
>I agree.  Shouldn't the subscription process be delegated to the broker

Do not think message broker by themselves are not necessarily directly
exposed for subscription. I think you still need a service through which
to register endpoint (web call back URL or SMS etc) to receive
notifications. For e.g in public cloud, if tenant's on-premise monitoring
component wish to receive notification for occurrence of event he can
register a endpoint with notification service which acts as proxy for
broker. Though, I agree that notification service it self, need not be
part of CloudStack.

>> On 12/20/12 3:46 AM, "Murali Reddy" <> wrote:
>>>>Hey Murali,
>>>>Great to hear about where you stand right now.  Is the code (work in
>>>>progress obviously) available on one of the branches?  I'd love to
>>>>take a look at it.
>>>I have been using 'events-framework' branch for this work. Please take a
>>>look at 'framework/events/src/org/apache/cloudstack/framework/events'
>>>event bus abstraction and the specific AMQP client implementation and
>>>'plugins/event-bus/rabbitmq/src/org/apache/cloudstack/mom/rabbitmq' for
>>>Rabbit AM AMQP client that implements EventBus.

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