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Release It! by Michael T. Nygard

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Chapter 5Stability Patterns

Now that you’ve seen some antipatterns to avoid, you’ll look at the flip side. In this chapter, you’ll examine some patterns that are the inverse of the killers from the last chapter. These eight healthy patterns provide architecture and design guidance to reduce, eliminate, or mitigate the effects of cracks in the system. Not one of these will help your software pass QA, but they will help you get a full night’s sleep, or an uninterrupted dinner with your family, once your software launches.

Don’t make the mistake of assuming that a system that includes more of these patterns is superior to one with less of them. “Count of patterns applied” is never a good quality metric. Instead, I want you to develop a recovery-oriented ...

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