Scale Databases: Read/Write Replicas in Laravel

Short summary

Implement CQRS at the database layer by configuring Laravel to route SELECT queries to read replicas and INSERT/UPDATE/DELETE to a primary master. The sticky flag ensures read consistency within requests. This doubles throughput and isolates heavy reporting queries from critical write pipelines.

• •Configure Laravel with separate read (replicas) and write (primary) nodes in config/database.php
• •Enable sticky flag to guarantee users see their own writes immediately in the same request
• •Isolate heavy analytical queries from mission-critical ingestion pipelines, preventing cascading failures

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