alt Hacker News> If your primary load exceeds 30% (CPU util), consider adding read replicas.
I'm not an expert, but isn't this excessive? In theory you could triple the load and still have slack. I'd actually try to scale down, not up.
> If your primary load exceeds 30% (CPU util), consider adding read replicas.
I'm not an expert, but isn't this excessive? In theory you could triple the load and still have slack. I'd actually try to scale down, not up.
Load is highly bursty. You can autoscale application services quickly, but scaling your database up is a slower thing.