Read/Write Splitting in Production — Scaling Reads Without Sharding
Route reads to replicas and writes to primary with lag monitoring, sticky sessions, circuit breakers, and Prisma/Drizzle configuration.
webcoderspeed.com
7 articles
Route reads to replicas and writes to primary with lag monitoring, sticky sessions, circuit breakers, and Prisma/Drizzle configuration.
Master pgvector setup, index tuning, hybrid search patterns, and embedding pipelines for production semantic search at scale.
Master JSONB storage, GIN indexing (jsonb_ops vs jsonb_path_ops), query patterns, validation constraints, and migration from NoSQL databases.
Identify slow queries with pg_stat_statements, read EXPLAIN ANALYZE output, tune work_mem and autovacuum, and configure PgBouncer for connection pooling.
Network partition splits your 3-node cluster into two halves. Both halves think they''re the primary. Both accept writes. Network heals. You have two diverged databases with conflicting data. This is split brain — one of the most dangerous failure modes in distributed systems.
Master TimescaleDB hypertables, continuous aggregates, compression, retention policies, and time-bucketing for sub-second time-series queries.
Master the expand/contract pattern, concurrent index creation, and rollback-safe migrations to deploy schema changes without user impact.