What does it mean when a cluster node is in the REMOTE_BUILD state?

The in-memory cluster configuration is being built by copying the in –memory configuration from another running cluster node.

The node is building the in-memory cluster configuration from the primary main.cf file on a remote node.

The in-memory configuration on the node is being updated to reflect configuration changes being made on a remote node.

It is the last node to join the cluster and must wait to build the in-memory configuration until all other nodes have their in-memory configuration.