When to use Paxos (real practical use cases)?

Question

Could someone give me a list of real use cases of Paxos. That is real problems that require consensus as part of a bigger problem.

Is the following a use case of Paxos?<

Answer 1

Paxos is used for WAN-based replication of Subversion repositories and high availability of the Hadoop NameNode by the company I work for (WANdisco plc.)