JDBC/ODBC, Applications ... MySQL Wire Protocol heartbeat meta TiDB is not a database middleware Sharding middleware TiDB ACID Transaction Support Mostly Elastic Scaling Complex Query (Join, Sub query, small and medium data size. ● Due to the problem of single writer, scale-out write still requires middleware or manually sharding ● Aurora is difficult to handle complex queries due to the reuse of MySQL

Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 7.4.3 The advantages of Middleware encryption service . . . . . . . . . . . . . . . . 278 7.4.4 Solution . . . . . . . . . . . . users to operate Apache ShardingSphere like a database, transforming it from a frame‐ work and middleware for developers to a database product for DBAs. DistSQL is divided into RDL, RQL and RAL. • RDL ShardingSphere document, v5.0.0 3.3.3 Goal It is the design goal of DistSQL to break the boundary between middleware and database and let developers use Apache ShardingSphere just like database. 3.3.4 Notice DistSQL

Business Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . 399 The advantages of Middleware encryption service . . . . . . . . . . . . . . . . . 405 Solution . . . . . . . . . . . . . . failure. Centralized management is to uniformly manage the state of database storage nodes and middleware computing nodes, and can detect the latest updates in the distributed environment in real time microservices, business requires multiple ser‐ vices to be completed through a series of services and middleware calls. The pressure testing of a single service can no longer reflect the real scenario. In the

Business Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . 426 The advantages of Middleware encryption service . . . . . . . . . . . . . . . . . 432 Solution . . . . . . . . . . . . . . failure. Centralized management is to uniformly manage the state of database storage nodes and middleware computing nodes, and can detect the latest updates in the distributed environment in real time microservices, business requires multiple ser‐ vices to be completed through a series of services and middleware calls. The pressure testing of a single service can no longer reflect the real scenario. 3.9

Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 The advantages of Middleware encryption service . . . . . . . . . . . . . . . . . 93 Solution . . . . . . . . . . . . . . connection resources is one thing, adopting better merging model to save the memory resources of middleware is another thing. How to deal with the relationship between them is a problem that ShardingSphere manner and can detect the latest changes in real time, whether it is the underlying database node, middleware or business system node, to further provide the basis for the control and scheduling of the cluster

Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 7.5.3 The advantages of Middleware encryption service . . . . . . . . . . . . . . . . 288 7.5.4 Solution . . . . . . . . . . . . users to operate Apache ShardingSphere like a database, transforming it from a frame‐ work and middleware for developers to a database product for DBAs. DistSQL is divided into RDL, RQL and RAL. • RDL ShardingSphere document, v5.1.1 3.3.3 Goal It is the design goal of DistSQL to break the boundary between middleware and database and let developers use Apache ShardingSphere just like database. 3.3.4 Notice DistSQL

Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 7.5.3 The advantages of Middleware encryption service . . . . . . . . . . . . . . . . 299 7.5.4 Solution . . . . . . . . . . . . users to operate Apache ShardingSphere like a database, transforming it from a frame‐ work and middleware for developers to a database product for DBAs. DistSQL is divided into RDL, RQL and RAL. • RDL ShardingSphere document, v5.1.2 3.3.3 Goal It is the design goal of DistSQL to break the boundary between middleware and database and let developers use Apache ShardingSphere just like database. 3.3.4 Notice DistSQL

Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 536 The advantages of Middleware encryption service . . . . . . . . . . . . . . . . . 538 Solution . . . . . . . . . . . . . . failure. Centralized management is to uniformly manage the state of database storage nodes and middleware computing nodes, and can detect the latest updates in the distributed environment in real time microservices, business requires multiple ser‐ vices to be completed through a series of services and middleware calls. The pressure testing of a single service can no longer reflect the real scenario. In the

Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 565 The advantages of Middleware encryption service . . . . . . . . . . . . . . . . . 567 Solution . . . . . . . . . . . . . . failure. Centralized management is to uniformly manage the state of database storage nodes and middleware computing nodes, and can detect the latest updates in the distributed environment in real time microservices, business requires multiple ser‐ vices to be completed through a series of services and middleware calls. The pressure testing of a single service can no longer reflect the real scenario. In the

Co-creator CTO, PlanetScale @ssougou ssougou.blogspot.com Vitess@GoSV What is Vitess ● Sharding middleware for MySQL ● Massively scalable ● HA ● Cloud-native pxhere CC0 Vitess stats Started 2010 7,500+