Design, route, and scale database read replicas with confidence. Actionable guides covering topology design, connection pooling, ORM routing, replication lag management, and failover strategies.
Built for backend engineers, DBAs, SREs, and platform architects who need production-grade patterns — not toy examples. Every guide includes trade-off matrices, configuration baselines, and failure mode analysis.
Three Core Domains
From topology design to query-level routing decisions — practical patterns grounded in real production systems.
Master topology design, synchronous vs asynchronous replication, consistency models, and multi-region deployment strategies.
Explore section →Implement read/write splitting at the proxy layer, configure pgBouncer, build ORM middleware routes, and manage sticky sessions.
Detect and handle replication lag in real time, implement fallback strategies, and route queries based on data freshness requirements.
Start Here
New to read replicas? Work through these five guides in order for a solid production foundation.
Every guide includes decision matrices comparing approaches across latency, complexity, and operational overhead.
Copy-ready YAML, SQL, Python, and INI configurations drawn from real deployment patterns.
Explicit failure patterns, root causes, and mitigations for every architectural decision.
Patterns covering PostgreSQL, MySQL, ProxySQL, pgBouncer, Spring Data JPA, and SQLAlchemy.