Problem Description
The aql or C client shows this warning message:
Peer Node A1 is different than actual node B1 for host 192.168.1.1 3000
And the cluster shows this warning message in the log:
WARNING (hb): (hb.c:4883) (repeated:40) could not create heartbeat connection to node {192.168.1.1:3002}
Explanation
The first warning is from the refresh of the tend thread in the client so the warning should appear every second. In this case, both node A1 and B1 are having the same IP address. This is likely a misconfiguration that cause a node to use the same ip address as another node.
Solution
Simply shutdown one of the node or change the IP address of another node so they don't duplicate.