How To Configure a MongoDB Replica Set on Ubuntu 20.04

How To Configure a MongoDB Replica Set on Ubuntu 20.04

Learn How To Configure a MongoDB Replica Set on Ubuntu 20.04. This tutorial provides a brief overview of how replication works in MongoDB and outlines how to configure and initiate a replica set with three members. Each member of the replica set will be a distinct MongoDB instance running on separate Ubuntu 20.04 servers.

MongoDB, also known as Mongo, is an open-source document database used in many modern web applications. It is classified as a NoSQL database because it does not rely on a traditional table-based relational database structure. Instead, it uses JSON-like documents with dynamic schemas. This means that, unlike relational databases, MongoDB does not require a predefined schema before you add data to a database.

When working with databases, it’s often useful to have multiple copies of your data. This provides redundancy in case one of the database servers fails and can improve a database’s availability and scalability, as well as reduce read latencies. The practice of synchronizing data across multiple separate databases is called replication. In MongoDB, a group of servers that maintain the same data set through replication are referred to as a replica set.

This tutorial provides a brief overview of how replication works in MongoDB and outlines how to configure and initiate a replica set with three members. In this example configuration, each member of the replica set will be a distinct MongoDB instance running on separate Ubuntu 20.04 servers.

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