在CentOS上监控Golang应用可以通过多种工具和方法实现,以下是一些常用的方法和工具:
wget https://github.com/prometheus/prometheus/releases/download/v2.36.1/prometheus-2.36.1.linux-amd64.tar.gz
tar -xf prometheus-2.36.1.linux-amd64.tar.gz
cd prometheus-2.36.1.linux-amd64
./prometheus --config.file prometheus.yml
wget https://dl.grafana.com/oss/release/grafana-9.3.2.linux-amd64.tar.gz
tar -xf grafana-9.3.2.linux-amd64.tar.gz
cd grafana-9.3.2.linux-amd64
./bin/grafana-server
prometheus.yml
中添加配置,例如监控Golang应用的指标端点:scrape_configs:
- job_name: 'myapp'
static_configs:
- targets: ['localhost:8080']
import (
"net/http"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
var (
requestCount = prometheus.NewCounter(prometheus.CounterOpts{
Namespace: "myapp",
Name: "http_requests_total",
Help: "Total number of HTTP requests",
})
requestLatency = prometheus.NewHistogram(prometheus.HistogramOpts{
Namespace: "myapp",
Name: "http_request_latency_ms",
Help: "Latency of HTTP requests in ms",
Buckets: prometheus.DefBuckets,
})
)
func main() {
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
requestCount.Inc()
requestLatency.Observe(float64(time.Since(time.Now()).Milliseconds()))
w.Write([]byte("Hello, world!"))
})
http.Handle("/metrics", promhttp.Handler())
http.ListenAndServe(":8080", nil)
}
通过上述方法,您可以在CentOS上有效地监控Golang应用,确保其性能和稳定性。