HCOLL-134 ( release draft cut of the code so that I can test it across my network )

src/main/java/net/openhft/chronicle/map/DiscoveryCluster.java

@@ -139,11 +139,14 @@ public class DiscoveryCluster {
             @Override
             public boolean isIdentifierUnique(byte remoteIdentifier, SocketAddress remoteAddress) {
                 final SocketAddress socketAddress = identifiers.putIfAbsent(remoteIdentifier, remoteAddress);
+                remoteNodes.activeIdentifierBitSet().set(remoteIdentifier);
                 return socketAddress == null;
             }
         };
 
 
+        remoteNodes.activeIdentifierBitSet().set(identifier);
+
         final TcpReplicationConfig tcpConfig = TcpReplicationConfig
                 .of(tcpPort, toInetSocketArray(knownHostPorts))
                 .heartBeatInterval(1, SECONDS).nonUniqueIdentifierListener(identifierListener);