Using two machines running ZK will actually decrease your reliability >> compared to using a single machine. Consider using one machine or three. >> > > ? > > Not meaning to pull the thread off-topic, but I don't understand why this > should be the case. Can you elaborate? > > With majority-based quorums, a 2 node ensemble will fail if either machine fails. This is the same as a 1 node ensemble - if one machine fails, the ensemble fails.
But with the 2 nodes, you have (roughly) double the probability of experiencing a single failure, with the same failure profile. cheers, Henry > Thanks, > > DR > -- Henry Robinson Software Engineer Cloudera 415-994-6679