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by corobo
1794 days ago
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Have them all hot and live rather than any sort of failover system. Keep everything in sync with OctoDNS or similar https://github.com/octodns/octodns DNS is fastest first* rather than main/failover. If AWS DNS was down your GCP DNS would have replied (if all is well) sooner than {timeout} so your visitor would still have a response * Sort of. I think if the client doesn't get a reply from the server it picked randomly in 1s they move on to the next server, repeat until all fail |
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