Setting Up MongoDB in Production

MongoDB is a NoSQL database designed for scalability and flexibility. Setting it up for production involves several key steps to ensure reliability, security, and performance.

2.1. System Requirements

Before installation, ensure your system meets the following requirements:

• 64-bit operating system
• At least 2 GB RAM (4 GB recommended)
• Disk space for data and indexes

2.2. Installation Steps

Follow these steps to install MongoDB:

1. Download the MongoDB binaries from the official website.
2. Extract the downloaded archive.
3. Move the extracted folder to a suitable location (e.g., /usr/local/mongodb).
4. Add MongoDB to your system PATH.
5. Run the MongoDB server using the command:

   mongod --dbpath /path/to/your/data

3.1. Configuration File

MongoDB uses a configuration file (mongod.conf) for settings:

systemLog:
  destination: file
  path: /var/log/mongodb/mongod.log
  logAppend: true

storage:
  dbPath: /var/lib/mongodb
  journal:
    enabled: true

net:
  bindIp: 127.0.0.1
  port: 27017

3.2. Starting MongoDB with Configuration File

Start MongoDB with the following command:

mongod --config /path/to/mongod.conf

4.1. Enable Authentication

To secure your MongoDB instance, enable authentication:

security:
  authorization: enabled

4.2. Create an Admin User

After enabling authentication, create an admin user:

use admin
db.createUser({
  user: "admin",
  pwd: "password",
  roles: [{ role: "userAdminAnyDatabase", db: "admin" }]
})

5.1. Monitoring Tools

MongoDB provides several tools for monitoring:

• MongoDB Compass
• mongostat
• mongotop

5.2. Setting Up Alerts

Set up alerts using MongoDB Ops Manager or third-party services to monitor performance and availability.