Windows Azure Service Bus: Messaging Patterns Using Sessions

摘要

In one of our previous articles, we discussed the importance of using messaging patterns in the cloud in order to decouple solutions and promote easy-to-scale software architectures. Queuing is one of these messaging patterns, and the Windows Azure platform offers two main options to implement this approach: Queue storage services and Service Bus Queues, both of which cover scenarios where multiple consumers compete to receive and process each of the messages in a queue. This is the canonical model for supporting variable workloads in the cloud, where receivers can be dynamically added or removed based on the size of the queue, offering a load balancing/failover mechanism for the back end (see Figure 1).