Request flows

sequenceDiagram

participant Client

participant LoadBalancer

participant Server1

participant Server2

participant Cache

participant Database

participant Replica1

participant Replica2

Client ->> LoadBalancer: Send Request

LoadBalancer ->> Server1: Distribute Request

Server1 ->> Cache: Check Cache (Read)

Cache -->> Server1: Cache Hit

Server1 -->> Client: Return Data (Cache Hit)

Server1 -->> Database: Read Data if Cache Miss (Read)

Database -->> Server1: Return Data

Server1 -->> Client: Return Data

Client ->> LoadBalancer: Send Write Request

LoadBalancer ->> Server2: Distribute Write Request

Server2 -->> Database: Write to Database (Write-Around)

Database -->> Replica1: Replicate Write

Database -->> Replica2: Replicate Write