CRS-01670
Leaf node could not find any Hub nodes to connect to; details at string in string
Cause
A Leaf node attempted to join the cluster but could not find a Hub node to which to connect.
Action
Verify that the clusterware stack is up and running on at least one Hub node and, if not, start the stack on one or more Hub nodes. Verify that the Grid Naming Service (GNS) resource is active on a Hub node. If not, start it on at least one node. Check if the network connectivity is viable to all Hub nodes that have the clusterware stack running. If the Leaf node startup has exhausted its retry attempts, it may be necessary to start the clusterware stack manually on the Leaf node. Contact Oracle Support Services if all of the above is verified and the Leaf node is not able to find any Hub nodes to which to connect.