master-replica

A microservice (sidecar) that helps instantly determine the status of your PostgreSQL hosts including whether they are alive, which one is the master, which ones are replicas, and how far each replica is lagging behind the master.

Memo-DB is an in-memory key-value database written in TypeScript that implements a subset of the Redis Serialization Protocol (RESP). It provides TCP socket connection handling, core Redis-compatible data structures, append-only persistence, transaction queuing, and master-replica command forwarding.

MySQL 8 Master-Replica Docker Compose setup with separate users for app, replication, and read-only reporting. Ready for development and testing.

A docker-compose example for a mysql master replica setup