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"High-ish" availability cross-region architectures

TL;DRThe architectures of a cross-region highly available (HA) application vs a single region application are often seen as quite distinct. This post will show it doesn't have to be that clear cut, with a few small changes we can cost effectively deal with a region outage quicker and without the same expense as running redundant copies of our solution.IntroductionHigh Availability concepts and architecture is a big topic but I wanted to cover a specific aspect of HA with regards to configuring architectures across datacentre regions. This post doesn't cover other important aspects of HA and re…

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