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PostgreSQL Streaming Replication (WAL); What It Is and How to Configure One
Learn how to set up PostgreSQL streaming replication with step-by-step instructions. This guide covers master and replica configuration, essential settings, and how replication works under the hood.
This method provides faster failover and reduces the risk of data loss compared to file-based log shipping, making it ideal for geographically distributed environments. After the backup is complete, it configures the replica by enabling `hot_standby` for read-only queries and setting the connection info for the master (including host, user, and password). Whether you’re preparing for failover scenarios or distributing read loads across replicas, these configurations ensure your database infrastructure is ready to scale and perform reliably.
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