Send command to DOWN the node specified by 'address'.
Get the address of the current leader.
Member status for this node.
Comma separated addresses of member nodes, sorted in the cluster ring order.
Comma separated addresses of unreachable member nodes.
Returns true if the node is not unreachable and not
Does the cluster consist of only one member?
Try to join this cluster node with the node specified by 'address'.
Send command to issue state transition to LEAVING for the node specified by 'address'.