O'Reilly logo

Lean-Agile Acceptance Test-Driven Development: Better Software Through Collaboration by Ken Pugh

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 29. Case Study: Highly Available Platform

“You just call out my name,

And you know wherever I am

I’ll come running, oh yeah baby

To see you again.”

Carole King, “You’ve Got a Friend”

Many corporate software systems depend on a highly available platform. This chapter shows increasingly detailed acceptance tests for such a platform.

Context for Switching Servers

A highly available platform has at least two independent computers. If one goes down, the other available computers take over the load. If the servers are running close to capacity, not all the applications may be able to run. A predetermined priority mechanism determines which applications get to run. In addition to switching applications when a server goes down, in the case ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required