Postgres is failing with 'could not open relation mapping file “global/pg_filenode.map” '

Question

I\'m having an issue with my install of postgres in my development environment and I need some help diagnosing it. I haven\'t yet had any luck in tracking down a solution.

Answer 1

This (https://gist.github.com/olivierlacan/e1bf5c34bc9f82e06bc0) solved my problem! I first had to:

1. Delete Postgres.app from my Applications
2. Delete /usr/local/var/postgres directory
3. initdb /usr/local/var/postgres/

Then I was able to start/stop Postgres with these 2 commands:

Start:

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

Stop:

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