[gpadmin@bogon ~]$ export PGPORT=7456
[gpadmin@bogon ~]$ gpconfig -s gp_resource_manager
Values on all segments are consistent
GUC          : gp_resource_manager
Master  value: queue
Segment value: queue

[gpadmin@bogon ~]$ gpconfig -c gp_resource_manager -v "group"
20200722:20:24:39:053663 gpconfig:bogon:gpadmin-[INFO]:-completed successfully with parameters '-c gp_resource_manager -v group'