How did you implement and configure data replication in your last project?

In the latest project, data replication was implemented at the PostgreSQL database level. This involved configuring asynchronous replication using built-in WAL (Write-Ahead Logging) mechanisms. The primary server records all changes, and the standbys apply these changes for synchronization.

The setup included:

• Enabling replication mode in the postgresql.conf configuration (wal_level = replica, max_wal_senders, hot_standby = on)
• Creating a user with replication rights
• Configuring pg_hba.conf to allow replica connections
• Initializing replicas using pg_basebackup
• Running replicas in standby mode

This approach ensures fault tolerance and load balancing for read operations.