To change a local configuration parameter across multiple segments, update the parameter in the postgresql.conf file of each targeted segment, both primary and mirror. Use the gpconfig utility to set a parameter in all Greenplum postgresql.conf files. For example:
$ gpconfig -c gp_vmem_protect_limit -v 4096
Restart Greenplum Database to make the configuration changes effective:
$ gpstop -r
Parent topic: Setting Configuration Parameters
