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This is a fantastic read on benchmarking different load balancing algorithms, and how the Least Conn algorithm in HAProxy can outperform Power of Two.
The most interesting bit was how a global/external load balancer with some form of central coordination can improve performance.
The most interesting bit was how a global/external load balancer with some form of central coordination can improve performance.
Link to article haproxy.com/blog/power-of-… I really loved how the article explained everything in very simple terms, making it very easy to follow along.
Rate limiting, load balancing, load shedding etc can happen at both the global and local level - they have different implications, performance profiles and risks. I feel this is something that's not particularly well-understood by many folks.
