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package collector
import (
"github.com/golang/glog"
"github.com/prometheus/client_golang/prometheus"
mgo "gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
"time"
)
var (
profileCount = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: "profile",
Name: "slow_query_30s_count",
Help: "The number of slow queries in this database during last 30 seconds",
}, []string{"database"})
)
type ProfileStatus struct {
Name string `bson:"database"`
Count int `bson:"count"`
}
func (profileStatus *ProfileStatus) Export(ch chan<- prometheus.Metric) {
profileCount.WithLabelValues(profileStatus.Name).Set(float64(profileStatus.Count))
profileCount.Collect(ch)
profileCount.Reset()
}
func (profileStatus *ProfileStatus) Describe(ch chan<- *prometheus.Desc) {
profileCount.Describe(ch)
}
func CollectProfileStatus(session *mgo.Session, db string, ch chan<- prometheus.Metric) {
ts := time.Now().Add(-time.Duration(time.Second * 30))
count, err := session.DB(db).C("system.profile").Find(bson.M{"ts": bson.M{"$gt": ts}}).Count()
if err != nil {
glog.Error(err)
return
}
profileStatus := ProfileStatus{db, count}
profileStatus.Export(ch)
}
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