Installing and Running MongoDB on OSX

问题:

If someone can provide some insights here I would GREATLY appreciate it.

I am new to MongoDB, and (relatively) new to the command line.

I had a express/node.js app running on MongoDB locally successfully, but upon restarting my computer, I attempted to restart the Mongo server and it began giving errors and wouldn't start. Since then, I have re-installed Mongo several times only to find the same error occurring. this is what I am receiving:

privee:mongodb-osx-x86_64-2.4.6 jonlinton$ ./bin/mongo
MongoDB shell version: 2.4.6
connecting to: test
Mon Aug 26 14:48:47.168 Error: couldn't connect to server 127.0.0.1:27017 at     src/mongo/shell/mongo.js:145
exception: connect failed

Am I missing a step? Should I be creating a config file? Some basic guidance would be really helpful. Thanks in advance for any insights.

回答1:

Assuming you have created the data/db directory under bin after install.

1. Start a terminal for your mongo server
2. Go to <mongodb-install-directory>/bin directory

3. Run the command

   ./mongod

4. Start a terminal for your mongo shell

5. Go to <mongodb-install-directory>/bin directory

6. Run the command (make sure you put the name of the database)

   ./mongo test

回答2:

If you have installed mongodb through homebrew then you can simply start mongodb through

brew services start mongodb

Then access the shell by

mongo

You can shut down your db by

brew services stop mongodb

You can restart your db by

brew services restart mongodb

For more options

brew info mongodb

回答3:

I assume you are using Homebrew. You can see the additional information that you need using brew info $FORMULA

~> brew info mongo                                                           255
mongodb: stable 2.4.6, devel 2.5.1
http://www.mongodb.org/
/usr/local/Cellar/mongodb/2.4.5-x86_64 (20 files, 287M) *
  Built from source
From: https://github.com/mxcl/homebrew/commits/master/Library/Formula/mongodb.rb
==> Caveats
To reload mongodb after an upgrade:
    launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist
    launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist

Caveats is what you need to follow after installation.

回答4:

Problem here is you are trying to open a mongo shell without starting a mongo db which is listening to port 127.0.0.1:27017(deafault for mongo db) thats what the error is all about:

Error: couldn't connect to server 127.0.0.1:27017 at src/mongo/shell/mongo.js:145 exception: connect failed

The easiest solution is to open the terminal and type

$ mongod --dbpath ~/data/db

Note: dbpath here is "Users/user" where data/db directories are created

i.e., you need to create directory data and sub directory db in your user folder. For e.g say `

/Users/johnny/data

After mongo db is up. Open another terminal in new window and type

$ mongo

it will open mongo shell with your mongo db connection opened in another terminal.

回答5:

mongo => mongo-db console
mongodb => mongo-db server

If you're on Mac and looking for a easier way to start/stop your mongo-db server, then MongoDB Preference Pane is something that you should look into. With it, you start/stop your mongo-db instance via UI. Hope it helps!

回答6:

additionally you may want mongo to run on another port, then paste this command on terminal,

mongod --dbpath /data/db/ --port 27018

where 27018 is the port we want mongo to run on

assumptions

1. mongod exists in your bin i.e /usr/local/bin/ for mac ( which would be if you installed with brew), otherwise you'd need to navigate to the path where mongo is installed
2. the folder /data/db/ exists

回答7:

Make sure you are logged in as root user in your terminal.

Steps to start mongodb server in your mac

1. Open Terminal
2. Run the command sudo su
3. Enter your administrator password
4. run the command mongod
5. MongoDb Server starts

Hope it helps you. Thanks

回答8:

Mac Installation:

1. Install brew

   ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
   

2. Update and verify you are good with

   brew update
   brew doctor
   

3. Install mongodb with

   brew install mongodb
   

4. Create folder for mongo data files:

   mkdir -p /data/db
   

5. Set permissions

   sudo chown -R `id -un` /data/db
   

6. Open another terminal window & run and keep running a mongo server/daemon

   mongod
   

7. Return to previous terminal and run a mongodb shell to access data

   mongo
   

To quit each of these later:

1. The Shell:

   quit()
   

2. The Server

   ctrl-c
   

回答9:

On your terminal simply type sudo mongod and enter your password.

NOTE: MongoDB must be installed on machine.