apt-get install pgbouncer
vim /etc/pgbouncer/pgbouncer.ini
[databases]
[pgbouncer]
logfile = /var/log/postgresql/pgbouncer.log
pidfile = /var/run/postgresql/pgbouncer.pid
listen_addr = 127.0.0.1
listen_port = 6432
unix_socket_dir = /var/run/postgresql
auth_type = trust
auth_file = /etc/pgbouncer/userlist.txt
admin_users = postgres
stats_users = postgres
pool_mode = transaction
vim /etc/pgbouncer/userlist.txt
"postgres" ""
"edokumenty" ""
"http" ""
/etc/init.d/pgbouncer restart