PG Error could not connect to server: Connection refused Is the server running on port 5432?

Question

I recently updated my machine (MacBook Pro running Mountain Lion) and ever since then, whenever I set up a rails project, my machine craps out and cannot connect to PG. Curr

Answer 1

This is quite easy than your think because If you update your mac then process is running but postmaster.pid file is missing from /usr/local/var/postgres/ here. so you need to start process for postgres which create postmaster.pid.

If progress is running then -

Stop manually:

pg_ctl -D /usr/local/var/postgres stop -s -m fast

Start manually:

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

now all are working...