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Load balancing at Github: Why ldirectord?

By | Technical | 14 Comments

Some comments on Github’s blog post “How We Made Github Fast” have been asking about why ldirectord was chosen as the load balancer for the new site. Since I made most of the architecture decisions for the Github project, it’s probably easiest if I answer that question directly here, rather than in a comment. Why ldirectord rocks The reasons for Github using ldirectord are fairly straightforward: I have a lot of experience with ldirectord. Never underestimate the value of knowing where the bodies are buried. In ldirectord’s case, there aren’t many skeletons, but “better the devil you know” is a valid argument. If you’ve got strong experience in making something work (and you’ve managed to make it work), and you don’t have a lot of time for science experiments, then…

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