At Uber, our MySQL® fleet is the backbone of our data infrastructure, supporting a vast array of operations critical to our platform. Uber operates an extensive MySQL fleet, consisting of over 2,300 independent clusters. Building a control plane to manage this fleet at such a massive scale, while ensuring zero downtime and no data loss, is among the most challenging problems in the industry. In the last couple of years, we embarked on improving ‌MySQL fleet availability from 99.9% to 99.99% thro...