Hi, former GitHubber here and CEO of PlanetScale. I came to PlanetScale after seeing the incredible impact that Vitess had at GitHub. The team we have hired here successfully sharded part's of GitHub's very large platform. We continue to shard very large customers at PlanetScale.

Platform migrations take a very long time and it's very complicated especially with decade old codesbases. I will say the current team at GitHub are nothing but outstanding people and engineers with a difficult task of managing a very large deployment.

I understand what you’re getting at… but why is it you presume that the employees now at planetscale are the reason GH couldn’t shard out their databases?

Like, there’s another angle here: management, yeah?

Another way of reframing it is “maybe the folks hiring at planetscale know the inside baseball about GH infrastructure”. For example: https://www.linkedin.com/in/isamlambert

this is my exact point: they hired the former head of GH infrastructure - literally the person directly responsible for all this at github for years - and made him their ceo

github should have sharded years ago, every other large mysql user did so much earlier in their growth trajectory

Ah, that’s a more specific point than what you seemed to have been making before.