Basics of PostgreSQL Database Replication

PostgreSQL supports high levels of reliability and scalability. One way to achieve high reliability and scalability is through database replication.

What is database replication?

Database replication is the process of copying data from one database to another. This can be useful in scenarios where we want to have multiple copies of a database to ensure high availability and reliability. In case one database fails, another can take over to serve the application.

Replication allows for the synchronization of data between multiple databases. This can be useful for allowing read access to a secondary database, improving performance through spreading out queries across multiple databases or creating a backup in case of failure.

Uses of database replication

Database replication is widely used for high availability, load balancing, disaster recovery, data analysis and reporting, backup and recovery, and compliance and auditing. We can ensure our database system remains available, reliable, and scalable by utilizing database replication. A detailed explanation of how each of these uses is achieved is as follows:

• High availability: By having multiple database replicas, we can ensure that the system remains available even if one replica fails. In case of a ...