title: What are the faster Paxos-related algorithms for consensus in distributed systems?
body: <p>I've read Lamport's <a href="http://research.microsoft.com/en-us/um/people/lamport/pubs/paxos-simple.pdf" rel="noreferrer">paper</a> on Paxos.  I've also heard that it isn't used much in practice, for reasons of performance.  What algorithms are commonly used for consensus in distributed systems?</p>