Facebook post-mortems...

Tue Oct 5 07:17:56 UTC 2021

On 5. Oct 2021, at 07:42, William Herrin <bill at herrin.us> wrote:
> 
> On Mon, Oct 4, 2021 at 6:15 PM Michael Thomas <mike at mtcc.com> wrote:
>> They have a monkey patch subsystem. Lol.
> 
> Yes, actually, they do. They use Chef extensively to configure
> operating systems. Chef is written in Ruby. Ruby has something called
> Monkey Patches. 

While Ruby indeed has a chain-saw (read: powerful, dangerous, still the tool of choice in certain cases) in its toolkit that is generally called “monkey-patching”, I think Michael was actually thinking about the “chaos monkey”, 
https://en.wikipedia.org/wiki/Chaos_engineering#Chaos_Monkey
https://netflix.github.io/chaosmonkey/

That was a Netflix invention, but see also
https://en.wikipedia.org/wiki/Chaos_engineering#Facebook_Storm

Grüße, Carsten