When two brokers form a master-slave pair, not part of a formal cluster definition with a quorum, their logs still show messages related quorum voting and failover:

2020-02-28 08:11:11,365 INFO  [org.apache.activemq.artemis.core.server] AMQ221066: Initiating quorum vote: LiveFailoverQuorumVote
2020-02-28 08:11:11,365 INFO  [org.apache.activemq.artemis.core.server] AMQ221067: Waiting 30 seconds for quorum vote results.
2020-02-28 08:11:11,367 INFO  [org.apache.activemq.artemis.core.server] AMQ221068: Received all quorum votes.

These messages are produced even though the broker pair isn't part of a cluster, and one (pair) can't be a quorum of anything.

I'm assured that these messages are harmless, but they are very confusing when trying to troubleshoot HA problems, and they scare customers. I understand that it would be possible to suppress them when there is only one broker pair, and I think this would be a useful fix.