I’d be surprised by this: GitHub pretty famously used Vitess, and I’d be surprised if each shard were too big for modern hardware. Based on previous reporting [0], they’re running out of space in the main data center and new management is determined to move to Azure in a hurry. I’d bet that these outages are a combination of a worsening capacity crunch in the old data center and…well, Azure.
[0]: https://thenewstack.io/github-will-prioritize-migrating-to-a...