. . . . . . . . . . . . . . . . 55 Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Resharding . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Replica Transactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Reserved Connections . . . . . instead. 33 Install Dependencies Install Go 1.17+ Download and install Golang 1.17. For example, at writing: curl -LO https://golang.org/dl/go1.17.linux-amd64.tar.gz sudo tar -C /usr/local -xzf go1.17.linux-amd64

. . . . . . . . . . . . . . . . . 55 Future improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 3 Vstream . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 VStream Skew Minimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 VStream Skew Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 VStream API and Resharding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

instead. Install Dependencies Install Go 1.15+ Download and install Golang 1.15. For example, at writing: curl -O https://golang.org/dl/go1.15.6.linux-amd64.tar.gz sudo tar -C /usr/local -xzf go1.15 with the local install guide instead. Install Dependencies Install Go 1.15+ Download and install Golang 1.15. For example, at writing: curl -O https://dl.google.com/go/go1.15.6.linux-amd64.tar.gz sudo a0bb -04ed332e05c2:1-76" > > type:COMMIT timestamp:1616749631 current_time:1616749631517789376 ] 55 Schema Tracker description: Tracking schema changes in Vstreams Tracking schema changes in Vstreams

. . . . . . . . . . . . . . . . . . 55 Reviewing your schema . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Changing your schema . . . . . . . large number of MySQL instances Vitess database drivers Vitess includes compliant JDBC and Go (Golang) database drivers using a native query protocol. Additionally, it implements the MySQL server protocol guide instead. Install Dependencies Install Go 1.12+ Download and install the latest version of Golang. For example, at writing: curl -O https://dl.google.com/go/go1.12.14.linux-amd64.tar.gz sudo tar

. . . . . . . . . . . . . . . . . . 55 Exploring the data in a Topology Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Implementations . . . . . . . . . . large number of MySQL instances Vitess database drivers Vitess includes compliant JDBC and Go (Golang) database drivers using a native query protocol. Additionally, it implements the MySQL server protocol the local install guide instead. 16 Install Dependencies Install Go 1.13+ Download and install Golang 1.13. For example, at writing: curl -O https://dl.google.com/go/go1.13.9.linux-amd64.tar.gz sudo

instead. Install Dependencies Install Go 1.15+ Download and install Golang 1.15. For example, at writing: curl -O https://golang.org/dl/go1.15.6.linux-amd64.tar.gz sudo tar -C /usr/local -xzf go1.15 with the local install guide instead. Install Dependencies Install Go 1.15+ Download and install Golang 1.15. For example, at writing: curl -O https://dl.google.com/go/go1.15.6.linux-amd64.tar.gz sudo implementation. 53 Current API Clients create vstreams by grpc-ing to VTGate using the Vstream API call. In golang: conn, _ := VTGate.Dial(ctx, "localhost:15991") // tabletType is one of replica/master/rdonly,

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Supported Databases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . with the local install guide instead. Install Dependencies Install Go 1.13+ Download and install Golang 1.13. For example, at writing: curl -O https://dl.google.com/go/go1.13.9.linux-amd64.tar.gz sudo with the local install guide instead. Install Dependencies Install Go 1.13+ Download and install Golang 1.13. For example, at writing: curl -O https://dl.google.com/go/go1.13.9.linux-amd64.tar.gz sudo

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Topology Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . with the local install guide instead. Install Dependencies Install Go 1.13+ Download and install Golang 1.13. For example, at writing: curl -O https://dl.google.com/go/go1.13.9.linux-amd64.tar.gz sudo with the local install guide instead. Install Dependencies Install Go 1.13+ Download and install Golang 1.13. For example, at writing: curl -O https://dl.google.com/go/go1.13.9.linux-amd64.tar.gz sudo

Vitess解析 ⺴⽹网易杭州研究院后台技术组---胡争 Vitess Introduction • Golang , GTID • youtube 2011~2015 , github 2000+ star • vitess provides servers and tools which facilitate scaling of MySQL databases for large large scale web services. • about 8w line(test code exclude) • client(bson SSL) java/python/go Golang ? • minimalist • goroutines • channels & selects • closures • defers • generics • GC • map