The inability to control the traffic sent to MySQL is one of the worse nightmares for a DBA. Scaling out and high availability are only buzz words if the application doesn't support such architectures. ProxySQL is able to create an abstraction layer between the application and the database: controlling traffic at this layer hides the complexity of the database infrastructure from the application, allowing both HA and scale out. The same layer is able to protect the database infrastructure from abusive traffic, acting as a firewall and cache, and rewriting queries.
René has 10 years of working experience as System, Network and Database Administrator mainly on Linux/Unix platform. In the last 4-5 years his experience was focused mainly on MySQL, working as Senior MySQL Support Engineer at Sun/Oracle and now as Senior Operational DBA at Blackbird, (formerly PalominoDB). In this period he build an analytic and problem solving mindset and he is always eager to take on new challenges, especially if they are related to high performance.