Iteratively Migrating an HTTP Service to Go and gRPC Using grpc-gateway and httputil.ReverseProxy Igor Dubinskiy  GitHub: eef9/p2_1.jpg) OR GRPC BEHIND GRPC-GATEWAY ngflip.com ## Options to migrate a service from HTTP to gRPC • Everything but the browser a. Modify clients to use gRPC b. Use grpc-gateway; see below • Browser (using grpc-gateway) a. Modify clients to call new service per route as each required RPC is implemented b. Modify clients to call new service for all routes once all required RPCs are implemented

## 使用gRPC go实现 基于Topic的高效消息订阅发布模型  姓名：___ 张凯 中国电子云  gRPC go 介绍 01 gRPC 四种通信模式及落地场景 02 根据 proto 生成 go 桩代码 03 订阅者动态注册 04 发布者消息推送 05 现场案例演示 06 ## gRPC go介绍 ## gRPC是什么？ 1. 什么是gRPC？gRPC go与gRPC的关系是什么？ 2. gRPC与HTTP相比优势是什么？能否使用HTTP平替gRPC的实现？ 相比HTTP的Swagger，gRPC为什么没有Swagger? 4. 如何判断一个项目是否适合用qRPC来做实现？ 5. 如果要使用gRPC实现，有没有什么快速学习的方法？ 1. 什么是gRPC？gRPC go与gRPC的关系是什么？ -- gRPC是2015年Google开源，RPC的一种，底层基于HTTP2传输 -- gRPC是一种框架，gRPC go是gRPC的一种实现；同理有其他各语言的实现。

per_try_timeout = 2; // Defines retry attempts amount. int32 retries = 3; // Defines the retriable gRPC errors. repeated RetryOn retry_on = 4; } enum RetryOn { CANCELLED = 0; DEADLINE_EXCEEDED and allows for creation of miscellaneous rules def k8s_manifest( name:str, srcs:list, grpc_services:list=None, ): """Defines Kubernetes manifests.""" Args: YAML config files containing the Kubernetes config. grpc_services: The proto files used for creating VirtualService for the defined gRPC services. virtual_service_rule = genrule( name

/9/6/5/f/965f19e60396b430e5dbd32ac78ddc43/p10_1.jpg) ## RPC 协议&远程调用的选型； - net/rpc, thrift, grpc等; 链路追踪，参考Google Dapper论文，核心思路是关键库植入代码，因为缺乏AOP编程支持，我们使用golang blog推荐的依赖context对象； 服务发现、负载均衡依赖ZK； 是否多语言支持？net/rpc不支持 ☑ 性能如何？ ☑ thrift num:111324, time:30s, num/s:3710; grpc num:159999, time:30s, num/s:5333; net/rpc不依赖context，实现数据跟踪，需要修改源码； grpc支持http2，方便移动端app使用； ![Image](/uploads/documents/9/6/5/f/965f1

com/kubernetes/kubernetes/tree/master/cmd/libs/go2idl ## Pattern 3: gRPC based Interface • Decouple Kubernetes from external dependencies • kubelet -> gRPC -> dockershim -> dockerd • go2idl: gogoprotobuf own Controller with CRD 4.code gen for deep copy, API conversion, API doc, encoding/decoding etc 5.gRPC based interface (e.g. CRI) 2. How we can do better to use Kubernetes? 1. Programming Patterns in

报告分支执行失败，tc 会根据这个状态回滚整个全局事务，connCtx 没有值则只需正常回滚。 ## Mysql driver 接入演示 ## 注册中心配置中心支持 ## PostgreSQL 支持 ## GRPC 支持 https://github.com/opentrx/seata-golang https://github.com/openrx/mysql https://github.com/

between implementations 62 Transport Security Model ..... 64 Overview ..... 64 Caller ID ..... 65 gRPC Transport ..... 65 MySQL Transport ..... 66 Two-Phase Commit ..... 66 Isolation ..... 66 Driver equivalent information to the MySQL binary logs from the underlying MySQL shards of the Vitess cluster. gRPC clients, including Vitess components like VTTablets, can subscribe to a VStream to receive change returns consolidated results back to the client. It speaks both the MySQL Protocol and the Vitess gRPC protocol. Thus, your applications can connect to VTGate as if it is a MySQL Server. When routing

Migration between implementations 81 Transport Security Model 82 Overview 82 Caller ID 83 gRPC Transport 83 MySQL Transport to VTGate 85 Two-Phase Commit 86 Isolation 86 Driver APIs 86 equivalent information to the MySQL binary logs from the underlying MySQL shards of the Vitess cluster. gRPC clients, including Vitess components like VTTablets, can subscribe to a VStream to receive change returns consolidated results back to the client. It speaks both the MySQL Protocol and the Vitess gRPC protocol. Thus, your applications can connect to VTGate as if it is a MySQL Server. When routing

implementations ..... 112 Transport Security Model ..... 114 Overview ..... 114 Caller ID ..... 115 gRPC Transport ..... 115 MySQL Transport to VTGate ..... 117 Two-Phase Commit ..... 117 Isolation equivalent information to the MySQL binary logs from the underlying MySQL shards of the Vitess cluster. gRPC clients, including Vitess components like VTTablets, can subscribe to a VStream to receive change returns consolidated results back to the client. It speaks both the MySQL Protocol and the Vitess gRPC protocol. Thus, your applications can connect to VTGate as if it is a MySQL Server. When routing

Migration between implementations 123 Transport Security Model 125 Overview 125 Caller ID 126 gRPC Transport 126 MySQL Transport to VTGate 128 Two-Phase Commit 128 Isolation 129 Driver APIs equivalent information to the MySQL binary logs from the underlying MySQL shards of the Vitess cluster. gRPC clients, including Vitess components like VTTablets, can subscribe to a VStream to receive change returns consolidated results back to the client. It speaks both the MySQL Protocol and the Vitess gRPC protocol. Thus, your applications can connect to VTGate as if it is a MySQL Server. When routing