replicatedLevelDB not replicating messages

So I have the replicatedLevelDB configured and working using the example on
the activeMQ site. Zookeeper is running, when I take a broker down, it
detects and fires up on one of the others in the cluster. My issue is
this....it's just not replicating. When I send messages to the queue, I can
see it on the master, but if I were then to fail the master, the new master
has none of the previous data. Also, looking in the activemq.log, I see
nothing that shows any replication of messages.

I feel like I am missing a simple piece. Any thoughts?

Thanks!

Jim