I don’t think Paxos is superior than 2pc. 2pc is dramatically simpler to implement. And if you layer 2pc on Paxos (something highly available) you can get the b

I don’t think Paxos is superior than 2pc. 2pc is dramatically simpler to implement. And if you layer 2pc on Paxos (something highly available) you can get the best of both worlds — simplicity and fault tolerance. The thing with Paxos is that it’s expensive and very hard to get right. So usually you have a very small but critical component that’s built on Paxos, then you compose the rest of the system on top with strong assumptions of the availability of the dependencies.