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Release It!, 2nd Edition by Michael T. Nygard

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Chapter 3Stabilize Your System

New software emerges like a new college graduate: full of optimistic vigor, suddenly facing the harsh realities of the world outside the lab. Things happen in the real world that just do not happen in the lab—usually bad things. In the lab, all the tests are contrived by people who know what answer they expect to get. The challenges your software encounters in the real world don’t have such neat answers.

Enterprise software must be cynical. Cynical software expects bad things to happen and is never surprised when they do. Cynical software doesn’t even trust itself, so it puts up internal barriers to protect itself from failures. It refuses to get too intimate with other systems, because it could get hurt.

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