pg_ctl -D /usr/local/var/postgres stop -s -m fast
pg_ctl -D /usr/local/var/postgres/ -l /usr/local/var/postgres/server.log start
pg_ctl -D /usr/local/var/postgres stop -s -m fast
pg_ctl -D /usr/local/var/postgres/ -l /usr/local/var/postgres/server.log start