Follow-Up Regarding Large Scale Changes

Yesterday, I mentioned that teams should own and roll out their large-scale changes.

Some people thought it contradicted the Google SRE ideas, so I want to clarify a couple of things:

• This concept only applies to large-scale changes. It doesn’t change which team owns and is responsible for a service. For example, just because I upgraded the version of Java that your service uses doesn’t mean my team suddenly has to maintain the service.
• It helps to have clear contracts for your service teams and the team implementing the large-scale changes. For example, if there are end-to-end tests, then as long as they pass when I upgrade your Java version, I’m not responsible if the service fails in production.

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