The JusDB Database Engineering Blog

Compare Elasticsearch, Typesense, and Meilisearch — relevance, speed, operational complexity, and when to use each

A practical guide to choosing between read replicas and caching layers — replication lag behavior, cache invalidation strategies, thundering herd prevention, tiered read architecture patterns, and decision framework.

Compare CockroachDB, Google Spanner, and YugabyteDB — consistency models, PostgreSQL compatibility, and operational costs

Deploy Vitess for horizontal MySQL sharding — VSchema design, vtgate routing, and migration from single-instance MySQL

A production guide to Citus — distributed PostgreSQL for horizontal sharding. Hypertable setup, distribution column selection, colocation for local joins, reference tables, and Citus vs native PostgreSQL partitioning.

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

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.

Optimize database performance by choosing the right data types and constraints. Learn about VARCHAR vs TEXT, INT sizes, ENUM optimization, and constraint best practices.

Implement zero-downtime database migrations with versioning strategies. Learn about Flyway, Liquibase, schema evolution patterns, and rollback strategies.

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.

Learn the fundamental principles of database schema design for building scalable applications. This guide covers entity relationships, primary keys, foreign keys, and normalization concepts essential for high-performance databases.