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I need help to solve an error that happened while installing MongoDB into Macbook. I run this command to kick off installing.

brew install mongosh

ALthough I got a warning msg, it seemed like fine. enter image description here

I waited so long, and the installation got finally done. Here is the screenshot of the end.

enter image description here

As you can see, I typed below to check if it was successfully installed.

mongosh --version
1.2.2

Finally I tried to run MongoDB, so typed "mongosh". And I got an error to run it and connect to db called cluster0.

mongosh
Current Mongosh Log ID: 621d2adedeee61396fddb367
Connecting to:      mongodb://127.0.0.1:27017/?directConnection=true&serverSelectionTimeoutMS=2000&appName=mongosh+1.2.2
MongoNetworkError: connect ECONNREFUSED 127.0.0.1:27017
takeichimasahironoMacBook-Air:~ masa$ mongosh "mongodb+srv://cluster0.8tjjn.mongodb.net/myFirstDatabase" --apiVersion 1 --username mongo
Enter password: *****
Current Mongosh Log ID: 621d2b0f5a5370a82628edcc
Connecting to:      mongodb+srv://cluster0.8tjjn.mongodb.net/myFirstDatabase?appName=mongosh+1.2.2
MongoServerSelectionError: read ECONNRESET

Any idea to solve this issue?? Thanks for your effort in advance.

Sana
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  • Please don't paste screenshots, see https://meta.stackoverflow.com/q/285551 You may follow [Install MongoDB Community Edition on macOS](https://docs.mongodb.com/manual/tutorial/install-mongodb-on-os-x/) – Wernfried Domscheit Mar 01 '22 at 08:04
  • Your first mistep was that you tried to install mongosh, which is SHELL, not the database service. – Sgnl Jan 19 '23 at 19:42

2 Answers2

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In addition to the good answer above -- On newer versions mac os x the root directory is read only so you will need place your mongo data directory somewhere else, see this thread:

Read-only file system when attempting mkdir /data/db on Mac

I also needed to separately install the mongo command line tool from the cask:

$ brew install mongodb-community-shell
Antoine
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Jonathan Wall
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I recommend Homebrew for installing and managing applications on macOS. It is installed using the following command in the macOS terminal. Open up the terminal and paste the command:

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

The terminal runs through a series of installation operations, and will probably create folders in your local machine to accommodate Homebrews storage requirements. You can find more detailed instructions here. After it's installed, update the Homebrew dependencies and install MongoDB on the command line:

brew update
brew tap mongodb/brew
brew install mongodb-community

It will take a few seconds. Once it's done, create a directory so MongoDB can store its data.

sudo mkdir -p /data/db

Now to make sure this data directory have the right permissions, you'll run this command:

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

Now our data directory is ready with the right permissions. Next run mongo daemon. Which is a service which runs in the background and listens for connections on a given port. Run this command:

mongod

Now mongo daemon will be running in the background and can be used by your applications. Next, check your MongoDB version:

mongo --version
MongoDB shell version v4.2.6

The command-line results will show the version you have installed on your local machine. I recommend using the latest version of libraries and software whenever possible to avoid compatibility issues with client-side applications.

Sagar Barapatre
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