Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

Did you read TFA? Please, the point of TFA is NOT that you don't need distributed consensus algorithms, but that once you have them you don't need to worry about partitions, therefore you can have consistency, and you get "availability" in that the cloud "is always available", and if that sounds like cheating you have to realize that partitions in the cloud don't isolate clients outside the cloud, only servers inside the cloud, and if there's no quorum anywhere then you just treat that as "the cloud is down".


I suspect you never needed CAP in the first place, because even outside of cloud, you don't seem to pay a lot of attention about whether your service is up or not or how to increase that uptime.

In the same spirit, some businesses are fine with a single db, making backups every night and losing some data when an issue happens. It doesn't mean that people maintaining these systems get to tell others that distributed systems are essentially a non-problem.


> you get "availability" in that the cloud "is always available",

The cloud isn't what's being described as available. The service is available or not. The service is hosted on multiple computers that talk to each other. If they stop talking to each other, the service needs to either become unavailable (choosing consistency) or risk having not up to date data (choosing availability).


I did, and it doesn't provide insight that didn't exist 15 years ago.

Cloud is always available? I have a bridge to sell you.




Consider applying for YC's Fall 2025 batch! Applications are open till Aug 4

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: