Compare tables within or across databases
MySQL replication topology management and HA
Ripple, a server that can serve as a middleman in MySQL replication
The main features of google/mysql-ripple are: Replication and Migration.
Open-source alternatives to google/mysql-ripple include: codership/galera — Synchronous multi-master replication library. datafold/data-diff — Compare tables within or across databases. flike/kingbus — A distributed MySQL binlog storage system built on Raft. openark/orchestrator — MySQL replication topology management and HA. percona/replication-manager — This tool helps manage asynchronous replication between PXC or MariaDB clusters. The typical use case would be to… pingcap/tiflow — This repo maintains DM (a data migration platform) and TiCDC (change data capture for TiDB).