PostgreSQL server won't stop

Had same issue, pg_ctl: server does not shut down. Furthermore, ps auxwww | grep postgres showed no postgres running, while pg_ctl -D /usr/local/var/postgres status showed that postgres is running. Restarting my mac didn't help, i even went as far as to reset SMC, but this SO Q/A gave me an idea what to look for next: brew issues.

Following this line of thought, i found this helpful blog post, that came down to following commands that solved this issue for me:

$ brew services list
$ brew services restart postgresql

Hope this will help someone.

Update - Unknown command: services

After a bit of investigation following one of the comments ('Unknown command: services'), i found out that the authors of Homebrew decided to remove services from the repo, seeing as no one wants to maintain this code.

You can read more about it here and here (related github tickets).

After some more digging, I found this repo that adds services on macs.

This is how I 'returned' services:

~ » brew tap gapple/services
~ » brew services
usage: [sudo] brew services [--help] <command> [<formula>]

Small wrapper around `launchctl` for supported formulae, commands available:
   cleanup Get rid of stale services and unused plists
   list    List all services managed by `brew services`
   restart Gracefully restart selected service
   start   Start selected service
   stop    Stop selected service

Options, sudo and paths:

  sudo   When run as root, operates on /Library/LaunchDaemons (run at boot!)
  Run at boot:  /Library/LaunchDaemons
  Run at login: /Users/user/Library/LaunchAgents

Here is another suggested solution: https://apple.stackexchange.com/questions/150300/need-help-using-homebrew-services-command. Didn't check it myself, so don't know if and how it works.

$ brew services list

$ brew services stop postgresql

Stopping postgresql, but it might take a while → Successfully stopped postgresql (label: homebrew.mxcl.postgresql)

I had a similar issue. I had forgot that I integrated 'lunchy' a few days ago and was using it as a launchctl wrapper to initiate plist ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist on start up. pg_ctl was not effective because of the following line of code <key>KeepAlive<key>:

      <?xml version="1.0" encoding="UTF-8"?>
     2 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
     3 <plist version="1.0">
     4 <dict>
     5   <key>KeepAlive</key>
     6   <true/>
     7   <key>Label</key>
     8   <string>homebrew.mxcl.postgresql</string>
     9   <key>ProgramArguments</key>
    10   <array>
    11     <string>/usr/local/opt/postgresql/bin/postgres</string>
    12     <string>-D</string>
    13     <string>/usr/local/var/postgres</string>
    14     <string>-r</string>
    15     <string>/usr/local/var/postgres/server.log</string>
    16   </array>
    17   <key>RunAtLoad</key>
    18   <true/>
    19   <key>WorkingDirectory</key>
    20   <string>/usr/local</string>
    21   <key>StandardErrorPath</key>
    22   <string>/usr/local/var/postgres/server.log</string>
    23 </dict>
    24 </plist>

Trying to kill the process directly didn't work because I needed to unload the plist.

    launchctl unload homebrew.mxcl.postgresql.plist