[eru]

Google famously turn off a critical internal service for a minute our so, because they had promised 99.999% (or something like that) of uptime, but hadn't actually gone down in a few years.

In order to make sure that (internal) consumers of that service could handle the downtime, they introduced some artificially.

[dewey]

Never saw this communicated by Google, but Netflix is the company I have in mind for doing that: https://github.com/Netflix/chaosmonkey

[dontlaugh]

I think it was Chubby they did that with.

[riv991]

It was, they talk about it here: https://sre.google/sre-book/service-level-objectives/

[eru]

Thanks for giving the source!

In my defense, by being so vague, I can't accidentally reveal company secrets. (I used to work as an SRE for Google Photos for a while.)