Brew Services Not Updating With Fresh mongod.conf

[jackkeck]

Problem
After updating the mongod.conf file to include new parameters, brew services [stop/start/restart] mongodb-community@4.0" does not pick up the new version of mongod.conf`.

While playing with @MongoDB locally, I used @MacHomebrew’s services command to manage the mongod process. Don’t do this if you’re playing with configuration a lot. Due to its use use launchctl’s plists, it is not pulling in the latest version of your mongod.conf.

— Jack Keck (@jackkeck) April 20, 2019

I found an interesting answer on Stack Overflow that references formula caveats from 2015 stating:

==> Caveats
To reload mongodb after an upgrade:
    launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist
    launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist
Or, if you don't want/need launchctl, you can just run:
    mongod --config /usr/local/etc/mongod.conf

TODO
Update brew services to refresh MongoDB configuration from mongod.conf upon all starts and restarts.

[MikeMcQuaid]

Sorry, there's not enough information here to figure out what your problem is.

To help us debug this issue can you explain:

• What you were trying to do (and why)
• What happened
• What you expected to happen
• Step-by-step reproduction instructions (with as minimal input data as possible)