Load Balancer

One front door, many backends. Requests stream into the balancer and it spreads them across the servers by the chosen policy - each request holds a connection for a little while before finishing. Switch the algorithm and watch the distribution change live.

Hand requests to each backend in turn - simple and perfectly even when every server is identical.

⇄Load BalancerRound Robin

web-1w4

0 active

0 handled0%

web-2w2

0 active

0 handled0%

web-3w1

0 active

0 handled0%

web-4w1

0 active

0 handled0%

servers4

Request rate - 3/sSim speed - Normal

0total routed

0in flight

0dropped

4 / 4servers up

clients:203.0.113.8203.0.113.21203.0.113.34203.0.113.55203.0.113.89203.0.113.144Each dot is a request, coloured by its client IP. Under IP Hash a colour always lands on the same backend; under the others it spreads. Take a server down (⏻) to watch failover.