Architecture of Replica Sets
A typical replica set architecture consists of the following components:
- Primary Node: The primary node is the main node in the replica set. It is responsible for processing all write operations and managing replication to secondary nodes.
- Secondary Nodes: Secondary nodes replicate data from the primary node and serve read operations. They maintain an identical copy of the data to ensure fault tolerance and high availability.
- Arbiter: An optional arbiter node is used to break ties in elections for primary node selection. Arbiter nodes do not store data and are lightweight instances that contribute to achieving an odd number of voting members in the replica set.
Replica Set Deployment in MongoDB
Replica sets in MongoDB provide high availability and data redundancy. It is maintaining multiple copies of data across multiple servers. In this article, we’ll explore the concept of replica set deployment by discussing its importance, architecture, and deployment process also providing practical examples with outputs to understand the concept effectively.