correct way to start/stop postgres database pg_ctl or service postgres

问题

I would like to know correct way of starting/stopping postgres database. There are two ways

1. pg_ctl start/stop
2. service postgresql start/stop

I would like to know how they are different from each other, which one should I use? are their any pros/cons.

I check online but didnt get satisfactory answer.

Thanks in advance

回答1:

If you are using Mac with brew

To start:

brew services start postgresql

To stop:

brew services stop postgresql

Using pg_ctl

To start:

pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start

To stop:

pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log stop

回答2:

If you view /etc/init.d/postgres${VER} file, you will find out, that when you run service postgresql start/stop it runs pg_ctl $OPTIONS start/stop. The only difference is that service gives you handy way to store environmental variables and enable/disable autostart.

All above can be done manually, using pg_ctl and some scripting.

回答3:

cd /datadir

pg_ctl -D $(pwd) stop

pg_ctl -D $(pwd) start

#pg_ctl needs the path of the data (-D) 

Can be directly used:

pg_ctl -D /mnt/raid/pdb stop

pg_ctl -D /mnt/raid/pdb stop

Ref

来源：https://stackoverflow.com/questions/45671327/correct-way-to-start-stop-postgres-database-pg-ctl-or-service-postgres