Book Image

Microsoft Windows Azure Development Cookbook

By : Neil Mackenzie
Book Image

Microsoft Windows Azure Development Cookbook

By: Neil Mackenzie

Overview of this book

The Windows Azure platform is Microsoft's Platform-as-a-Service environment for hosting services and data in the cloud. It provides developers with on-demand computing, storage, and service connectivity capabilities that facilitate the hosting of highly scalable services in Windows Azure datacenters across the globe. This practical cookbook will show you advanced development techniques for building highly scalable cloud-based services using the Windows Azure platform. It contains over 80 practical, task-based, and immediately usable recipes covering a wide range of advanced development techniques for building highly scalable services to solve particular problems/scenarios when developing these services on the Windows Azure platform. Packed with reusable, real-world recipes, the book starts by explaining the various access control mechanisms used in the Windows Azure platform. Next you will see the advanced features of Windows Azure Blob storage, Windows Azure Table storage, and Windows Azure Queues. The book then dives deep into topics such as developing Windows Azure hosted services, using Windows Azure Diagnostics, managing hosted services with the Service Management API, using SQL Azure and the Windows Azure AppFabric Service Bus. You will see how to use several of the latest features such as VM roles, Windows Azure Connect, startup tasks, and the Windows Azure AppFabric Caching Service.
Table of Contents (16 chapters)
Microsoft Windows Azure Development Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Using the Service Bus as a relay service


The Windows Azure AppFabric Service Bus provides a relay service allowing communication between a client and a server even when the server is located behind a firewall. The Service Bus does this by providing a public endpoint for the service. A client, who could not ordinarily punch through the firewall, can connect in a secure manner to the public endpoint and the Service Bus relays this connection through the firewall to the service. The Service Bus implements this capability by fusing an outbound connection from the server with an outbound connection from the client. Consequently, the firewall does need to allow an outbound connection, but it does not need to allow an inbound connection. Under certain circumstances, the Service Bus may upgrade the connection, so that it goes directly between the client and the server bypassing the Service Bus relay endpoint completely, thereby providing a much faster connection. This is similar to the way instant...