alt Hacker News> We've identified an issue with a database primary and are failing over to a replica immediately
This is why it's hard to take GitHub seriously. How can a single database cause an outage for everyone? This is amateur stuff. Have they no sharding or partitioning internally? Paying customers should not be impacted in the same way as free ones are.
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I wonder what is this database, and why it is hard to fall-over automatically.
Did you not read it? Just because there's a database primary doesn't mean there is 1 primary database. There's likely man redundancies and they have issue with how they're allocating traffic to them which is in turn causing an issue with how much traffic redundancies are receiving.
Why shouldn't it? Most companies run on a single database server. If they can immediately fail over to a replica, that's doing it right.
Maybe you expect that part of GitHub to have a scale where a single database can't handle it, but evidently that isn't true.
We can criticise them for not splitting up free and paid customers but again, most companies don't do that.
2.9B commits per month; 100M action runs per day; I think they probably have some sharding.