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Doesn't work for datacenters.

Doesn't work for datacenters. Also is implemented with round-robin DNS to nodes (1-N, check X-Forwarded-For) in each AZ, which then handle balancing. Also worth noting that unless you turn on cross-region balancing, if an AZ doesn't have a node in it and the RR DNS points them at that AZ, they'll be turned away. Additionally, without it you need to scale by multiples of AZs you run in otherwise you'll have unbalanced traffic. On another note, I've always been curious if they're just abstractions around HAproxy at the per-node level.

Posted by Xorlev on May 28, 2014, 6:51 PM

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Doesn't work for datacenters.

XorlevMay 28, 2014, 6:51 PM

Doesn't work for datacenters. Also is implemented with round-robin DNS to nodes (1-N, check X-Forwarded-For) in each AZ, which then handle balancing. Also worth noting that unless you turn on cross-region balancing, if an AZ doesn't have a node in it and the RR DNS points them at that AZ, they'll be turned away. Additionally, without it you need to scale by multiples of AZs you run in otherwise you'll have unbalanced traffic. On another note, I've always been curious if they're just abstractions around HAproxy at the per-node level.

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