monitor

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Published: Jun 25, 2021 License: MIT Imports: 3 Imported by: 9

README

metrics性能监控

使用方法:
import "github.com/daheige/thinkgo/monitor"

1、在init()方法中添加如下代码
//注册监控指标

//web程序的性能监控,如果是job/rpc服务就不需要这两行
prometheus.MustRegister(WebRequestTotal)
prometheus.MustRegister(WebRequestDuration)

	
prometheus.MustRegister(monitor.CpuTemp)
prometheus.MustRegister(monitor.HdFailures)

2、在pprof中添加如下路由:
//性能报告监控和健康检测
//性能监控的端口只能在内网访问
var PProfPort = 2338
go func() {
	//defer logger.Recover() //参考thinkgo/logger包

	PProfAddress := fmt.Sprintf("0.0.0.0:%d", PProfPort)
	log.Println("server pprof run on: ", PProfAddress)

	httpMux := http.NewServeMux() //创建一个http ServeMux实例
	httpMux.HandleFunc("/debug/pprof/", pprof.Index)
	httpMux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
	httpMux.HandleFunc("/debug/pprof/profile", pprof.Profile)
	httpMux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
	httpMux.HandleFunc("/debug/pprof/trace", pprof.Trace)
	httpMux.HandleFunc("/check", routes.HealthCheck)

	//metrics监控
	httpMux.Handle("/metrics", promhttp.Handler())

	if err := http.ListenAndServe(PProfAddress, httpMux); err != nil {
		log.Println(err)
	}
}()

也可以直接调用 PrometheusHandler 监控,包含了PProf性能监控

实战案例

https://github.com/daheige/hg-mux

Documentation

Index

Constants

This section is empty.

Variables

View Source
var CpuTemp = prometheus.NewGauge(prometheus.GaugeOpts{
	Name: "cpu_temperature_celsius",
	Help: "Current temperature of the CPU",
})

CpuTemp cpu情况

View Source
var HdFailures = prometheus.NewCounterVec(
	prometheus.CounterOpts{
		Name: "hd_errors_total",
		Help: "Number of hard-disk errors",
	},
	[]string{"device"},
)
View Source
var WebRequestDuration = prometheus.NewHistogramVec(
	prometheus.HistogramOpts{
		Name:    "web_request_duration_seconds",
		Help:    "web request duration distribution",
		Buckets: []float64{0.1, 0.3, 0.5, 0.7, 0.9, 1},
	},
	[]string{"method", "endpoint"},
)

WebRequestDuration web_request_duration_seconds, Histogram类型指标,bucket代表duration的分布区间

View Source
var WebRequestTotal = prometheus.NewCounterVec(
	prometheus.CounterOpts{
		Name: "web_request_total",
		Help: "Number of hello requests in total",
	},
	[]string{"method", "endpoint"},
)

WebRequestTotal 初始化 web_request_total, counter类型指标, 表示接收http请求总次数 设置两个标签 请求方法和 路径 对请求总次数在两个

Functions

func MonitorHandler

func MonitorHandler(h http.Handler) http.Handler

MonitorHandler 性能监控处理器 可以作为中间件对接口进行打点监控

func MonitorHandlerFunc

func MonitorHandlerFunc(h http.HandlerFunc) http.HandlerFunc

MonitorHandlerFunc 对于http原始的处理器函数,包装 handler function,不侵入业务逻辑 可以对单个接口做metrics监控

Types

This section is empty.

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