Running multiple PostgreSQL clusters using systemd
Requirements Using systemd Multiple instance of PostgreSQL First instance running on port 5491 Second instance running on port 5492 Steps to setup first service STEP 1 create and edit service file sudo vi /etc/systemd/system/postgresql-9.4-5941.service STEP 2 Import original and Add Env .include /lib/systemd/system/postgresql-9.4.service [Service] Environment="PGDATA=/var/lib/pgsql/9.4/data1/" STEP 3 Modify postgresql.conf for instance sudo vi /var/lib/pgsql/9.4/data1/postgresql.conf" STEP 4 Change port for postgresql