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> If you have a lot of money and are willing and able to build a private network with enough redundancy Google has done this. Possibly AT&T also. > Notice who
by redis_mlc 5y ago
> If you have a lot of money and are willing and able to build a private network with enough redundancy
Google has done this. Possibly AT&T also.
> Notice who the author is: Eric Brewer
Note that Professor Brewer is a teacher/academic, and CAP is intended for instructional purposes.
As a DBA, I find CAP totally inadequate for any business purpose.
Try explaining to a business owner, "Yeah, when our network partitioned, we couldn't accept purchases in both partitions." Their response will be, "So all that money you spent on HA was really based on a lie?"
- packetslave 5y agoNote that Professor Brewer is a teacher/academic, and CAP is intended for instructional purposes Teacher, academic, and vice president of infrastructure at Google. He wrote about the CAP implications of Spanner here as well: https://storage.googleapis.com/pub-tools-public-publication-data/pdf/45855.pdf https://storage.googleapis.com/pub-tools-public-publication-...
- Dylan16807 5y agoI think you're conflating different things there. If you built a highly redundant network, and it still partitioned, then the actual problem is that you somehow lost 80% of your lines to the internet at the same time. So your response back needs to be that your HA setup kept things running for a while but it would take actual magic to keep going once just about all the servers are unplugged simultaneously. That's not a problem with CAP, that's a problem with explaining the wrong part of the issue.
- lostcolony 5y ago>>> "Yeah, when our network partitioned, we couldn't accept purchases in both partitions." Their response will be, "So all that money you spent on HA was really based on a lie?" "All that money spent on HA was what allowed us to accept purchases -at all-"