ProxySQL is a new proxy (currently under development) that aims to become the first open source proxy in the MySQL ecosystem able to provide HA and high performance with no changes in the application, using several built-in features and integration with clustering software. Features under development are: - read/write split ; - queries caching ; - queries filtering and rewrite ; - logging ; - transparent reconnect ; - connection pooling ; - built-in key/value storage ; - integration with clustering solution like MHA for planned and/or automatic failover; - support for master-slave setups (MySQL replication) or multi-masters (NDB or Galera) .