Elastic Load Balancing (ELB) yana rarraba traffic din shiga a cikin targets da yawa (EC2 instances, containers, da sauransu) — yana inganta availability (babu wurin da aka dora kawai) da scalability (rarraba load). Yana da mahimmancin ɓangare don tattaunawa da aiki masu inganci.
Abin da load balancer ya bugi
A LOAD BALANCER sits in front of multiple backend targets and distributes requests:
Client → LOAD BALANCER → ┬→ Instance 1
├→ Instance 2
└→ Instance 3
→ spreads traffic across targets (scalability + no single instance overloaded)
→ HEALTH CHECKS: routes only to HEALTHY targets (an unhealthy one is bypassed)
→ if a target fails, traffic goes to the others → HIGH AVAILABILITY
→ single entry point (clients hit the LB, not individual instances)
