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metrics.go
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metrics.go
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// Copyright (c) 2021 The BFE Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package stateful
import (
"net/http"
"net/http/httptest"
"net/url"
"github.com/baidu/go-lib/web-monitor/web_monitor"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
var (
MetricAPICostHisCounter = prometheus.NewCounterVec(prometheus.CounterOpts{
Name: "api_cost",
}, []string{"pattern", "status_code", "method"})
MetricAPIAccessCounter = prometheus.NewCounterVec(prometheus.CounterOpts{
Name: "api_access",
}, []string{"pattern", "status_code", "method"})
MetricSQLCostCounter = prometheus.NewCounterVec(prometheus.CounterOpts{
Name: "sql_cost",
}, []string{"sql"})
MetricSQLAccessCounter = prometheus.NewCounterVec(prometheus.CounterOpts{
Name: "sql_access",
}, []string{"sql"})
MetricPaincCounter = prometheus.NewCounter(prometheus.CounterOpts{
Name: "panic",
})
)
func init() {
prometheus.MustRegister(
MetricAPIAccessCounter,
MetricAPICostHisCounter,
MetricSQLAccessCounter,
MetricSQLCostCounter,
MetricPaincCounter)
}
func NewMonitorServerWithRun(version string, port int) *web_monitor.MonitorServer {
monitorServer := web_monitor.NewMonitorServer("BFE_API_SERVER", version, port)
monitorServer.RegisterHandler(web_monitor.WebHandleMonitor, "metrics", func(p url.Values) ([]byte, error) {
rsp, req := httptest.NewRecorder(), httptest.NewRequest(http.MethodGet, "/", nil)
promhttp.HandlerFor(
prometheus.DefaultGatherer,
promhttp.HandlerOpts{},
).ServeHTTP(rsp, req)
return []byte(rsp.Body.String()), nil
})
go monitorServer.Start()
return monitorServer
}