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Nov
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Oct
12
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Oct
12
comment DNS failover across multiple datacenters?
thanks, so it looks like DNSFO is really the only method for me.
Oct
11
comment DNS failover across multiple datacenters?
what i'm currently doing now is when we detect network outage, server down, etc ..., i just manually update the IP at DNS level to point to a different haproxy, but from testing, we noticed 10-20% of traffic still points to old ip even after 24 hours. this was with TTL set to 600. so i wonder, how do big companies handle these sort of situation, like amazon for instance? surely they must have geographically distributed load balancers all appointed as a single IP?
Oct
11
comment DNS failover across multiple datacenters?
@madhatter sorry, my question wasn't asked properly. but basically i want to make, haproxy redundant by having as many as i want anywhere in the world. this way, if my load balancer goes down, other haproxy can kick in and i can finally sleep easy at night.
Oct
11
comment DNS failover across multiple datacenters?
@grant safado is right, i wasn't really asking for how to make DNS redundant. my question is more about, how i can have haproxy redundant across multiple datacenters, where i don't have ability to assign a virtualip to do a heartbeat/keepalived.
Oct
10
asked DNS failover across multiple datacenters?