Unable to connect to postgresql database after upgrading to Yosemite 10.10

Question

After updating to Yosemite 10.10 I cannot connect to my postgresql database. I run the rails console and try and get the first user but get this error...

>     ➜  game_golf git:(master) ✗ rails c
>     Loading development environment (Rails 4.1.4)
>     [1] pry(main)> User.first
>     PG::ConnectionBad: could not connect to server: Connection refused
>       Is the server running on host "localhost" (::1) and accepting
>       TCP/IP connections on port 5432?
>     could not connect to server: Connection refused
>       Is the server running on host "localhost" (127.0.0.1) and accepting
>       TCP/IP connections on port 5432?
>     from /Users/pauldornfeld/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/activerecord-4.1.4/lib/active_record/connection_adapters/postgresql_adapter.rb:888:in `initialize'
>     [2] pry(main)>

What do I do! I have tried to reinstall postgresql, reinstall homebrew. Please help!

Answer 1

You are better off using the easy method by installing the http://postgresapp.com/ app! I too had this same issue with 10.9.4. Also with 10.10.

brew install postgres will give issues when doing any OS X upgrades so avoid it. So install the app then:

Add this to your profile if the install do not work out of the box. For me I never had to add the below in my profile:

export PATH="/Applications/Postgres.app/Contents/MacOS/bin:$PATH"

This line must be at the top of your profile:

export PATH=/usr/local/bin:$PATH

Good luck!

Answer 2

I found this.

cd /usr/local/var/postgres
mkdir pg_tblspc pg_twophase pg_stat_tmp

It worked for me.

Answer 3

Checking the server.log will show you what directories it's looking for. Adding them to your postgres directory should fix this. (Was going to comment above, but don't have enough reputation)