The client scheduler for node node name attempts to connect with the server, but is denied a session. All sessions that have been allocated for scheduled operations are already in use.
Server operation continues.
Issue the QUERY OPTION command to determine if the option DISABLESCHEDS YES has been specified in the server options file. If so, scheduling can be enabled by updating the server options file with DISABLESCHEDS NO and restarting the server. If DISABLESCHEDS YES was not specfied in the server options file, change the total number of sessions by altering the MAXSESSIONS parameter in the server options file and then restarting the server. The percentage of sessions that are available for scheduled operations can be increased by using the SET MAXSCHEDSESSIONS command.