多注册中心
多注册中心
一个 Dubbo-go 应用可以配置的多个接口维度的注册中心。
1. 准备工作
- dubbo-go cli 工具和依赖工具已安装
- 创建一个新的 demo 应用
- 本地启动Nacos、Zookeeper
2. 使用多注册中心
修改服务端配置 go-server/conf/dubbogo.yaml, 同时将服务注册在两个注册中心上。
dubbo:
registries:
zookeeper: # 指定 zookeeper 注册中心
protocol: zookeeper
address: 127.0.0.1:2181
nacos: # 指定 nacos 注册中心
protocol: nacos
address: 127.0.0.1:8848
protocols:
triple:
name: tri
port: 20000
provider:
services:
GreeterProvider:
registry-ids: # 同时注册
- zookeeper
- nacos
interface: ""
修改客户端配置 go-client/conf/dubbogo.yaml
dubbo:
registries:
nacos: # 指定 nacos 注册中心
protocol: nacos
address: 127.0.0.1:8848
zookeeper: # 指定 zookeeper 注册中心
protocol: zookeeper
address: 127.0.0.1:2181
consumer:
references:
GreeterClientImpl:
registry-ids: # 从 nacos 注册中心服务发现
- nacos
protocol: tri
interface: ""
GreeterClientImpl2:
registry-ids: # 从 zookeeeper 注册中心服务发现
- zookeeper
protocol: tri
interface: ""
修改客户端代码,再定义一个客户端存根类,名为GreeterClientImpl2:
var grpcGreeterImpl2 = new(GreeterClientImpl2)
type GreeterClientImpl2 struct{
api.GreeterClientImpl
}
客户端编写调用代码:
func main() {
config.SetConsumerService(grpcGreeterImpl)
config.SetConsumerService(grpcGreeterImpl2)
if err := config.Load(); err != nil {
panic(err)
}
logger.Info("start to test dubbo")
req := &api.HelloRequest{
Name: "laurence",
}
reply, err := grpcGreeterImpl.SayHello(context.Background(), req)
if err != nil {
logger.Error(err)
}
logger.Infof("nacos server response result: %v\n", reply)
reply, err = grpcGreeterImpl2.SayHello(context.Background(), req)
if err != nil {
logger.Error(err)
}
logger.Infof("zk server response result: %v\n", reply)
}
3. 多注册中心服务发现验证
分别启动 go-server/cmd 和 go-client/cmd 查看两条调用成功的日志:
INFO cmd/client.go:55 nacos server response result: name:"Hello laurence" id:"12345" age:21
INFO cmd/client.go:61 zk server response result: name:"Hello laurence" id:"12345" age:21
最后修改 March 2, 2023: Fix alias forward in docs3-v2 (#2342) (f16c1535592)