Charity Majors+ Your Authors @mipsytipsy CTO @honeycombio; co-wrote Database Reliability Engineering; loves whiskey, rainbows. I test in production and so do you. 🌈🖤Black Lives Matter🖤 Jun. 12, 2019 1 min read + Your Authors

never forget that i am not a mathematician or a capital-e Engineer, i am ops to the bone. the only definition i care about is the one that helps me understand ✨real production systems✨. theory schmeary.

(two days later, she remembers to complete her thought)

i don't know how the theory of systems controllability and its mathematical dual, systems observability, would look when applied to modern production systems.

to me it's like asking how one might calculate the nth order derivative of a hairball you found under your bed.

i do know what characteristics you need in *reality* to understand what's happening on the internals of your systems, by observing them from the outside:

* raw events of arbitrary width
* aggregate at read time
* no indexes r--

... aw hell i've given this list so many times

i look forward to whatever formal proofs may come and improve upon my empirical, experience-based list, and can't wait to see what i've missed.


You can follow @mipsytipsy.


Tip: mention @threader_app on a Twitter thread with the keyword “compile” to get a link to it.

Enjoy Threader? Sign up.

Since you’re here...

... we’re asking visitors like you to make a contribution to support this independent project. In these uncertain times, access to information is vital. Threader gets 1,000,000+ visits a month and our iOS Twitter client was featured as an App of the Day by Apple. Your financial support will help two developers to keep working on this app. Everyone’s contribution, big or small, is so valuable. Support Threader by becoming premium or by donating on PayPal. Thank you.

Follow Threader