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by yencabulator
492 days ago
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Utterly unrelated to Knuth, and probably not useful for picking DNS servers because of their more static nature, but you might enjoy Ceph's CRUSH load distribution algorithm. Very rough gist: you can use it to e.g. set policy to avoid two replicas in the same rack, and ensure third replica goes on a different floor. And you can express server overload to migrate data off of one gradually, etc. Ceph uses that, with servers gossiping about failures & overload, to have clients directly contact the right servers. https://ceph.io/assets/pdfs/weil-crush-sc06.pdf (Disclaimer: Ex-employee. It's all open source.) |
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