Databases & Caching
MySQL/MariaDB tuning, backups, replication and Redis.
Databases & Caching articles
Databases & Caching· 4 min read
Redis Cluster vs Sentinel
Sentinel gives you automatic failover for one Redis dataset. Cluster shards data across nodes AND fails over. Here's how each works and which you actually need.
September 24, 2026Databases & Caching· 4 min read
Redis Streams as a Work Queue
Redis Streams give you a persistent, consumer-group log — enough for many work-queue needs without adding Kafka or RabbitMQ. Here's the commands and the reliability model.
September 15, 2026Databases & Caching· 4 min read
MySQL User Management and Grants
MySQL identity is user + host, and grants apply at several scopes. Here's creating least-privilege app accounts, roles, and reading SHOW GRANTS.
September 1, 2026Databases & Caching· 4 min read
ProxySQL Basics
ProxySQL sits between apps and MySQL doing connection pooling, read/write splitting, and failover routing. Here's the config model and a working read/write split.
August 30, 2026