The replication command did not start because data belonging to the specified nodes was being replicated, or because the nodes are not configured for replication.
The server ends the command.
Verify that the specified nodes are correct and that they are configured for replication. Verify that the nodes are not part of an active replication process. A node is configured for replication if the replication state is ENABLED or DISABLED. To determine the replication state of a node, issue the QUERY NODE FORMAT=DETAILED command. To configure nodes for replication, issue the UPDATE NODE command. After the situation has been corrected, reissue the REPLICATE NODE command.