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mongo auto start on OS X

Install with Homebrew

brew install mongodb

Set up launchctl to auto start mongod

$ ln -sfv /usr/local/opt/mongodb/*.plist ~/Library/LaunchAgents

/usr/local/opt/mongodb/ is a symlink to /usr/local/Cellar/mongodb/x.y.z (e.g., 2.4.9)

You can use launchctl to start and stop mongod

$ launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist
$ launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist

You can also more conveniently use brew to start, stop, and verify service status

$ brew services list | grep mongodb
$ brew services start mongodb
$ brew services stop mongodb


The default plist provided by homebrew stores the mongod configuration at /usr/local/etc/mongod.conf. This configuration specifies the dbpath to be /usr/local/var/mongodb instead of the default /data/db.

For more about launchctl see:

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excalq commented Sep 13, 2014

When running launchctrl load... I kept getting nothing found to load

The solution was to use -wF

launchctl load -wF ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist

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thank you very much, btw, I searched google, and (and I noticed you also mentioned) is where it explains things very well. Now i don't have to always do sudo mongod whenever my computer restarts.

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aarsilv commented Mar 24, 2017

I believe you want a trailing / in ln -sfv /usr/local/opt/mongodb/*.plist ~/Library/LaunchAgents so that it links within the directory.

I didn't have that directory so I had to do:

mkdir ~/Library/LaunchAgents
ln -sfv /usr/local/opt/mongodb/*.plist ~/Library/LaunchAgents/

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shiv19 commented Oct 27, 2017

Thanks @subfuzion this was helpful

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harrv commented Mar 7, 2018

Thank you, @subfuzion.

It's interesting to me how many people are content to have their database run only while they are logged in. I don't know what y'all are using mongodb for, but for my purposes a LaunchDaemon is much more useful than a LaunchAgent.

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