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A comment on Fastmail 30 June outage post-mortem. Parent comment

Re:Fastmail 30 June outage post-mortem by arp242 on Thursday July 06, 2023 @11:24AM (#36617464)
> This all seems cobbled together and very prone to failures.

AFAIK it's not like FastMail has a crazy number of network-related outages, so overall it doesn't seem that "prone to failure". As with many things, it's a trade-off with complexity and costs.

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Re:Fastmail 30 June outage post-mortem by paulryanrogers on Thursday July 06, 2023 @01:29PM (#36619606)
I'd argue that often the CDN or transit isn't drop-in replaceable. So it's usually more than 2x the cost as one has to maintain two architectures (or at least abstractions). That includes the expertise and not optimizing for strengths of either, or building really robust abstractions/adapters.
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