Files
awesome-system-design-resou…/implementations/python/load balancer algorithms/weighted_round_robin.py
2024-06-01 22:55:35 -07:00

25 lines
878 B
Python

class WeightedRoundRobin:
def __init__(self, servers, weights):
self.servers = servers
self.weights = weights
self.current_index = -1
self.current_weight = 0
def get_next_server(self):
while True:
self.current_index = (self.current_index + 1) % len(self.servers)
if self.current_index == 0:
self.current_weight -= 1
if self.current_weight <= 0:
self.current_weight = max(self.weights)
if self.weights[self.current_index] >= self.current_weight:
return self.servers[self.current_index]
# Example usage
servers = ["Server1", "Server2", "Server3"]
weights = [5, 1, 1]
load_balancer = WeightedRoundRobin(servers, weights)
for i in range(7):
server = load_balancer.get_next_server()
print(f"Request {i + 1} -> {server}")