Seven Ways To Build A Robust Testing in Production By @Neotys | @DevOpsSummit [#DevOps]

Here’s a short anecdote: a QA team maintained a test environment separate from their production environment, but they had gone through great lengths to ensure it matched what was in production in every respect. It was filled with the same hardware, and all the software was identical down to the patch level. They had a strong process to ensure that any change made to one environment was mirrored in the other. Perhaps you can see where this story is going. Sure enough, the environments turned out to not be identical. In fact, there was some BIOS setting that differed on the servers, which resulted in the production machines running slower than the test machines. As a result, the overall production system couldn’t handle the volume of traffic that the test system could, and one day, the whole live site unexpectedly crashed due to a load level it was supposed to be able to manage.

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