Three-tier web app
Browser → Load balancer → API pool → Database / Cache.
Rendering…
Make it your own.
browser -> lb: HTTPS
lb -> api1
lb -> api2
lb -> api3
api1 -> db: reads/writes
api2 -> db
api3 -> db
api1 -> cache
api2 -> cache
api3 -> cache
db.shape: cylinder
cache.shape: cylinder