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|
package stats
import (
"fmt"
"net/http"
"os"
"strings"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/prometheus/client_golang/prometheus/push"
"github.com/chrislusf/seaweedfs/weed/util/log"
)
var (
Gather = prometheus.NewRegistry()
FilerRequestCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "SeaweedFS",
Subsystem: "filer",
Name: "request_total",
Help: "Counter of filer requests.",
}, []string{"type"})
FilerRequestHistogram = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "SeaweedFS",
Subsystem: "filer",
Name: "request_seconds",
Help: "Bucketed histogram of filer request processing time.",
Buckets: prometheus.ExponentialBuckets(0.0001, 2, 24),
}, []string{"type"})
FilerStoreCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "SeaweedFS",
Subsystem: "filerStore",
Name: "request_total",
Help: "Counter of filer store requests.",
}, []string{"store", "type"})
FilerStoreHistogram = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "SeaweedFS",
Subsystem: "filerStore",
Name: "request_seconds",
Help: "Bucketed histogram of filer store request processing time.",
Buckets: prometheus.ExponentialBuckets(0.0001, 2, 24),
}, []string{"store", "type"})
VolumeServerRequestCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
Name: "request_total",
Help: "Counter of volume server requests.",
}, []string{"type"})
VolumeServerRequestHistogram = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
Name: "request_seconds",
Help: "Bucketed histogram of volume server request processing time.",
Buckets: prometheus.ExponentialBuckets(0.0001, 2, 24),
}, []string{"type"})
VolumeServerVolumeCounter = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
Name: "volumes",
Help: "Number of volumes or shards.",
}, []string{"collection", "type"})
VolumeServerReadOnlyVolumeGauge = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
Name: "read_only_volumes",
Help: "Number of read only volumes.",
}, []string{"collection", "type"})
VolumeServerMaxVolumeCounter = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
Name: "max_volumes",
Help: "Maximum number of volumes.",
})
VolumeServerDiskSizeGauge = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
Name: "total_disk_size",
Help: "Actual disk size used by volumes.",
}, []string{"collection", "type"})
VolumeServerResourceGauge = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
Name: "resource",
Help: "Resource usage",
}, []string{"name", "type"})
S3RequestCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "SeaweedFS",
Subsystem: "s3",
Name: "request_total",
Help: "Counter of s3 requests.",
}, []string{"type", "code"})
S3RequestHistogram = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "SeaweedFS",
Subsystem: "s3",
Name: "request_seconds",
Help: "Bucketed histogram of s3 request processing time.",
Buckets: prometheus.ExponentialBuckets(0.0001, 2, 24),
}, []string{"type"})
)
func init() {
Gather.MustRegister(FilerRequestCounter)
Gather.MustRegister(FilerRequestHistogram)
Gather.MustRegister(FilerStoreCounter)
Gather.MustRegister(FilerStoreHistogram)
Gather.MustRegister(prometheus.NewGoCollector())
Gather.MustRegister(VolumeServerRequestCounter)
Gather.MustRegister(VolumeServerRequestHistogram)
Gather.MustRegister(VolumeServerVolumeCounter)
Gather.MustRegister(VolumeServerMaxVolumeCounter)
Gather.MustRegister(VolumeServerReadOnlyVolumeGauge)
Gather.MustRegister(VolumeServerDiskSizeGauge)
Gather.MustRegister(VolumeServerResourceGauge)
Gather.MustRegister(S3RequestCounter)
Gather.MustRegister(S3RequestHistogram)
}
func LoopPushingMetric(name, instance, addr string, intervalSeconds int) {
if addr == "" || intervalSeconds == 0 {
return
}
log.Infof("%s server sends metrics to %s every %d seconds", name, addr, intervalSeconds)
pusher := push.New(addr, name).Gatherer(Gather).Grouping("instance", instance)
for {
err := pusher.Push()
if err != nil && !strings.HasPrefix(err.Error(), "unexpected status code 200") {
log.Infof("could not push metrics to prometheus push gateway %s: %v", addr, err)
}
if intervalSeconds <= 0 {
intervalSeconds = 15
}
time.Sleep(time.Duration(intervalSeconds) * time.Second)
}
}
func StartMetricsServer(port int) {
if port == 0 {
return
}
http.Handle("/metrics", promhttp.HandlerFor(Gather, promhttp.HandlerOpts{}))
log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", port), nil))
}
func SourceName(port uint32) string {
hostname, err := os.Hostname()
if err != nil {
return "unknown"
}
return fmt.Sprintf("%s:%d", hostname, port)
}
|
