After setting up multiple worker swarm cluster, When i try to login to the master node and access the list of worker nodes. It gives me an error.
root@swarm-master-91881543-0:~# docker node ls
Error response from daemon: This node is not a swarm manager. Use "docker swarm init" or "docker swarm join" to connect this node to swarm and try again.
root@swarm-master-91881543-0:~#