The JusDB Database Engineering Blog

Analyze real-world database schema designs from companies like Netflix, Uber, and Airbnb. Learn practical patterns for e-commerce, social media, and IoT applications.

Build a MySQL CDC pipeline using binlog and Kafka — Debezium, Maxwell, or Canal — trade-offs and production setup

Use Azure Cosmos DB for globally distributed workloads — consistency levels, partitioning, and API choices

Reduce AWS RDS MySQL costs by 40-60% with proven optimization strategies. Learn Reserved Instance planning, right-sizing, storage optimization, and read replica strategies.

A practical guide to database sharding strategies — hash sharding, range sharding, directory-based sharding — with trade-offs, resharding complexity, and decision criteria for MySQL and PostgreSQL.

Achieve microsecond latencies at scale with Aerospike. Learn hybrid memory architecture, strong consistency, cross-datacenter replication, and use cases for AdTech and fraud detection.

A complete guide to PostgreSQL replication — streaming replication setup, logical replication for selective table sync, synchronous standby configuration, monitoring replication lag, and failover with Patroni.

A production guide to MySQL full-text search — FULLTEXT index creation, MATCH AGAINST in natural language and boolean modes, the 50% rule, InnoDB vs MyISAM FTS, combining with B-tree indexes, and comparison against Elasticsearch.

RTO and RPO drive backup decisions. This guide covers mysqldump, XtraBackup, pgBackRest, WAL archiving, S3 object lock, and the 3-2-1-1-0 backup rule.

Optimize AWS RDS PostgreSQL costs without sacrificing performance. Learn instance sizing, storage class selection, backup strategies, and Multi-AZ optimization.

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

Monitor MySQL and PostgreSQL with Prometheus, Grafana, and PMM. Covers mysqld_exporter, postgres_exporter, alert rules, and production dashboard configuration.