Why I Built PureMyHA: A Lightweight MySQL 8.4 HA Manager in Haskell

TL;DR What is it? PureMyHA is a lightweight, asynchronous High Availability manager built exclusively for MySQL 8.4. Why Haskell? To leverage its robust type system and fearless concurrency for rock-solid state management where failure is not an option. ​The Goal: Provide automated failover, split-brain protection, and modern MySQL 8.4 syntax support without the complexity of full-scale database clustering systems. 🔗 GitHub Repository: ikaro1192/PureMyHA (If you find it interesting, a star would be awesome!) The State of MySQL 8.4 High Availability In modern database operations, the need to build highly available (HA) MySQL clusters from scratch on bare metal or IaaS is decreasing, thanks to managed services like Amazon Aurora. However, due to strict latency requirements, cost optimization, or existing infrastructure constraints, self-hosted MySQL HA is still a harsh reality for many of us. When looking at HA solutions for the recently released MySQL 8.4, the official InnoDB Cluster is