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AWS randomly assigns AZ names differently across accounts
- deleted 2y ago[deleted]
- awsanswers 2y agoTo prevent the effect of people picking the first zone in the list to launch resources into
- fhke 2y agoExactly this. If they didn’t do this, us-east-1a would be the biggest single point of failure the world has ever seen.
- gladiatr72 2y agoYeah. There is an api call that shows the mapping between a region's az names and the static az id's. I wasn't an early adopter but encountered the random az assignment in 2010.
- everfrustrated 2y agoBeen like this for the longest time. Makes sense but a real PITA when using a lot of AWS accounts in an org. In hindsight they should have assigned AZ identifiers to something less sequential. Instead of eu-east-1, eu-east-2, eu-east-3 Do something like eu-east-s, eu-east-k, eu-east-p where the suffixes are the same for everyone. Less bias to choosing -1 then.