The JusDB Database Engineering Blog

Configure PostgreSQL logical replication for selective table sync, zero-downtime upgrades, and multi-tenant setups

A practical guide to Redis use cases in production — cache-aside pattern, sliding window rate limiting, Pub/Sub vs Streams, BRPOP queues with delayed job scheduling, and session storage with persistence configuration.

Understand Kafka from a database perspective — partitions, offsets, consumer groups, and durability guarantees

A comprehensive guide to database connection pooling — comparing PgBouncer, ProxySQL, and HikariCP with configuration examples, pool mode trade-offs, and production sizing recommendations.

Navigate the complex landscape of database technologies. Compare SQL vs NoSQL, OLTP vs OLAP, and learn decision frameworks for selecting the perfect database for your use case.

Process DynamoDB Streams with Lambda for change data capture, cross-region replication, and event sourcing

Master horizontal and vertical partitioning, plus database sharding strategies for handling billions of records. Learn partition pruning, shard key selection, and cross-shard query optimization.

Understand FoundationDB's architecture — ACID transactions, layers, and why Snowflake and Apple chose it

Discover how jemalloc, tcmalloc, and mimalloc can dramatically improve MySQL memory management. Real benchmarks showing 2-4x performance improvements and memory leak prevention.