In an earlier blog post I was advising people to use HAProxy 1.4 and above if they need MySQL load balancing with health checks. It turns out that I didn't have much luck with that solution either. HAProxy shines when it load balances HTTP traffic, and its health checks are really meant to be run over HTTP and not plain TCP. So the solution I found was to have a small HTTP Web service (which I wro
Until the time comes when Amazon will offer a load balancing service in their EC2 environment, people are forced to use a software-based load balancing solution. One of the most common out there is HAProxy. I've been looking at it for the past 2 months or so, and recently we started to use it in production here at OpenX. I am very impressed with its performance and capabilities. I'll explore here
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