Hybrid Messaging Solutions for Large Scale OpenStack Deployments
Channel: OpenInfra Foundation
Date: 2017-05-10

The oslo.messaging library supports the concept of service-specific transports (e.g. backends) to allow RPC and Notification services to employ different messaging technologies. The need for this dual messaging backend capability is driven by the limitations of broker-based messaging for RPC communications with regard to complexity, scalability and resiliency. The temporal coupling of OpenStack service RPC communications favors a brokerless message bus based on direct messaging capabilities rath