Re:S3 Strong Consistency
by valenterry on Wednesday December 02, 2020 @09:40PM
(#25284627)
You are describing the case where there are 2 groups that are isolated/partitioned.
But what if there are more than 2?
Processing keeps happening on the partition with quorum.
A practical example I worked on is Google's Photon; multi-region logjoining with Paxos for consistency. When the network caused a region to become unavailable all the logjoining work happened in the other regions. Resources were provisioned for enough excess capacity to run at full speed in the case of a single region failure and the N-region processing allowed the redundancy cost to be as low as 100%/N overhead.