mysql
A MySQL 5.5 fork maintained by Twitter with performance optimizations for NUMA, SSDs, and production monitoring.
What is mysql?
Twitter MySQL is a specialized fork of MySQL 5.5 maintained by Twitter for internal use. It enhances the standard MySQL with performance optimizations for NUMA architectures and SSDs, adds production monitoring capabilities, and improves reliability features like server-side query timeouts and buffer pool management.
Database administrators and engineers managing large-scale MySQL deployments on modern hardware, particularly those dealing with NUMA systems, SSDs, and requiring deep InnoDB monitoring.
It provides battle-tested, production-focused enhancements not found in upstream MySQL, including NUMA-aware memory allocation, reduced SSD wear, and better tools for monitoring and safe restarts in high-demand environments.
Overview
MySQL fork maintained and used at Twitter
Use Cases
Best For
- Optimizing MySQL performance on NUMA-based server hardware
- Reducing write amplification and improving lifespan on SSD-backed databases
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