包装设计概念,网站中的关键词seo设置,深圳的公司排名,惠州哪家做网站比较好需求#xff1a; 1、计算当前6379 、3306 服务的连接数 2、可prometheus 语法查询 下面代码可直接使用#xff1a; 注#xff1a; 1、windows 与linux的区分 第38行代码 localAddr : fields[1] //windows为fields[1] #xff0c; linux为fields[3] 2、如需求 增加/修改/删除…需求 1、计算当前6379 、3306 服务的连接数 2、可prometheus 语法查询 下面代码可直接使用 注 1、windows 与linux的区分 第38行代码 localAddr : fields[1] //windows为fields[1] linux为fields[3] 2、如需求 增加/修改/删除 端口可参考第70 71行即可 70 NewPrometheusGauge(3306)71 NewPrometheusGauge(6379)代码
package mainimport (fmtlognet/httpos/execstringstimegithub.com/prometheus/client_golang/prometheusgithub.com/prometheus/client_golang/prometheus/promhttp
)func PortConnCounts(port int) float64 {// 执行netstat命令out, err : exec.Command(netstat, -an).Output()if err ! nil {fmt.Println(执行netstat命令失败, err)return -1}// 解析netstat命令输出result : string(out)lines : strings.Split(result, \n)// fmt.Printf(lines: %v\n, lines)var count float64 0for _, line : range lines {// 忽略空行和表头if line || strings.Contains(line, Active Internet connections) || strings.Contains(line, Proto) {continue}fields : strings.Fields(line)if len(fields) 4 {// 获取本地地址和端口localAddr : fields[3] //windows为fields[1] linux为fields[3]addrParts : strings.Split(localAddr, :)if len(addrParts) 2 {localPort : addrParts[len(addrParts)-1]if localPort fmt.Sprint(port) {count}}}}log.Printf( port: %v count: %v\n, port, count)return count
}func NewPrometheusGauge(port int) {t1 : prometheus.NewGauge(prometheus.GaugeOpts{Name: fmt.Sprint(portconnscount, port),Help: fmt.Sprint(portconnscount, port, 每10秒执行一次端口链接数误差1个左右 误差在于:::ipv6的显示),})// 注册指标prometheus.MustRegister(t1)// 每秒钟增加指标值go func() {for {t1.Set(PortConnCounts(port))time.Sleep(time.Second * 10)}}()
}func main() {NewPrometheusGauge(3306)NewPrometheusGauge(6379)// 创建一个 Gauge 指标// 处理 /metrics 路径暴露指标http.Handle(/metrics, promhttp.Handler())log.Fatal(http.ListenAndServe(:9101, nil))
}生成 二进制文件
//get 一下包
go get github.com/prometheus/client_golang/prometheus
go get github.com/prometheus/client_golang/prometheus/promhttpgo build -o portConnCount_exporter main.go执行
nohup ./portConnCount_exporter [rootwww netstat.go]# tail -f nohup.out
2023/08/09 15:56:39 port: 6379 count: 2272
2023/08/09 15:56:39 port: 3306 count: 100
2023/08/09 15:56:49 port: 3306 count: 100
2023/08/09 15:56:49 port: 6379 count: 2272
2023/08/09 15:56:59 port: 6379 count: 2272
2023/08/09 15:56:59 port: 3306 count: 100
2023/08/09 15:57:09 port: 6379 count: 2272
2023/08/09 15:57:09 port: 3306 count: 100
2023/08/09 15:57:20 port: 6379 count: 2272网页访问 http://ip:9101/metrics
prometheus语法查询
Grafana ------------end
