监控

Kitex 框架内置了监控能力，但是本身不带任何监控打点，通过接口的方式进行扩展。

框架提供了 Tracer 接口，用户可以根据需求实现该接口，并通过 WithTracer Option 来注入监控的具体实现。

// Tracer is executed at the start and finish of an RPC.
type Tracer interface {
    Start(ctx context.Context) context.Context
    Finish(ctx context.Context)
}

kitex-contrib 中提供了 prometheus 的监控扩展，使用方式：

Client

import (
    "github.com/kitex-contrib/monitor-prometheus"
    kClient "github.com/cloudwego/kitex/client"
)

...
	client, _ := testClient.NewClient(
	"DestServiceName",
	kClient.WithTracer(prometheus.NewClientTracer(":9091", "/kitexclient")))

	resp, _ := client.Send(ctx, req)
...

Server

import (
    "github.com/kitex-contrib/monitor-prometheus"
    kServer "github.com/cloudwego/kitex/server"
)

func main() {
...
	svr := xxxservice.NewServer(
	    &myServiceImpl{},
	    kServer.WithTracer(prometheus.NewServerTracer(":9092", "/kitexserver")))
	svr.Run()
...
}

最后修改 January 18, 2024 : Upload volo blog (#936) (1fc8abb)