How to start a mongodb service on mac OS X?

If you used homebrew to install MongoDB on macOS you type the following in terminal. Should do the trick in most cases.

$ brew services start mongodb

Try the following steps in Terminal:

which mongod

This will output the path to your mongod, but if it is not in your $PATH the command output will be empty. So you need to find your executable:

find / -name 'mongod'

In the output of this command, you will see many lines, one of which will be like bin/mongod, e.g. /usr/local/mongodb/bin/mongod. In that case take the whole absolute path and do the following:

echo "PATH=/usr/local/mongodb/bin/:$PATH" >> ~/.bash_profile
. ~/.bash_profile

Then try again:

mongod --dbpath /your/path

Just do brew services start mongodb-community. Example:

$ brew services list
Name              Status  User Plist
mongodb-community stopped      
$ brew services start mongodb-community
==> Successfully started `mongodb-community` (label: homebrew.mxcl.mongodb-community)

Of course, depends on your installation. This is the typical brew install.

As now is 2021 year, so start mongodb on Mac:

Use brew

• brew services start mongodb-community
  • for installed by: brew install mongodb-community

similarly:

for specify version

• brew services start [email protected]
  • for installed by: brew services install [email protected]

only running not want bootable

the start means start and enable start at launch/boot

for only run currently, use run:

• brew services run mongodb-community

check status

after start, check status use:

• brew services

Manually

for old version mongodb, the command is mongod:

• Directly run: mongodb
• Run with config: mongod --config /usr/local/etc/mongod.conf
  • the default config file path is: /usr/local/etc/mongod.conf
• Run with only pass some parameter:
  • with database path: mongod --dbpath /data
    • /data is common mongodb database path