seaweedfs/weed/stats/metrics.go

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package stats
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import (
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"fmt"
"os"
"strings"
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"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/push"
"github.com/chrislusf/seaweedfs/weed/glog"
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)
var (
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FilerGather = prometheus.NewRegistry()
VolumeServerGather = prometheus.NewRegistry()
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S3Gather = prometheus.NewRegistry()
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FilerRequestCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "SeaweedFS",
Subsystem: "filer",
Name: "request_total",
Help: "Counter of filer requests.",
}, []string{"type"})
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FilerRequestHistogram = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: "SeaweedFS",
Subsystem: "filer",
Name: "request_seconds",
Help: "Bucketed histogram of filer request processing time.",
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Buckets: prometheus.ExponentialBuckets(0.0001, 2, 24),
}, []string{"type"})
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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"})
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VolumeServerRequestCounter = prometheus.NewCounterVec(
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prometheus.CounterOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
Name: "request_total",
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Help: "Counter of volume server requests.",
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}, []string{"type"})
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VolumeServerRequestHistogram = prometheus.NewHistogramVec(
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prometheus.HistogramOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
Name: "request_seconds",
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Help: "Bucketed histogram of volume server request processing time.",
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Buckets: prometheus.ExponentialBuckets(0.0001, 2, 24),
}, []string{"type"})
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VolumeServerVolumeCounter = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
Name: "volumes",
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Help: "Number of volumes or shards.",
}, []string{"collection", "type"})
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VolumeServerMaxVolumeCounter = prometheus.NewGauge(
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prometheus.GaugeOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
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Name: "max_volumes",
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Help: "Maximum number of volumes.",
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})
VolumeServerDiskSizeGauge = prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
Namespace: "SeaweedFS",
Subsystem: "volumeServer",
Name: "total_disk_size",
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Help: "Actual disk size used by volumes.",
}, []string{"collection", "type"})
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S3RequestCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "SeaweedFS",
Subsystem: "s3",
Name: "request_total",
Help: "Counter of s3 requests.",
}, []string{"type"})
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() {
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FilerGather.MustRegister(FilerRequestCounter)
FilerGather.MustRegister(FilerRequestHistogram)
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FilerGather.MustRegister(FilerStoreCounter)
FilerGather.MustRegister(FilerStoreHistogram)
FilerGather.MustRegister(prometheus.NewGoCollector())
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VolumeServerGather.MustRegister(VolumeServerRequestCounter)
VolumeServerGather.MustRegister(VolumeServerRequestHistogram)
VolumeServerGather.MustRegister(VolumeServerVolumeCounter)
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VolumeServerGather.MustRegister(VolumeServerMaxVolumeCounter)
VolumeServerGather.MustRegister(VolumeServerDiskSizeGauge)
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S3Gather.MustRegister(S3RequestCounter)
S3Gather.MustRegister(S3RequestHistogram)
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}
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func LoopPushingMetric(name, instance string, gatherer *prometheus.Registry, addr string, intervalSeconds int) {
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if addr == "" || intervalSeconds == 0 {
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return
}
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glog.V(0).Infof("%s server sends metrics to %s every %d seconds", name, addr, intervalSeconds)
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pusher := push.New(addr, name).Gatherer(gatherer).Grouping("instance", instance)
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for {
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err := pusher.Push()
if err != nil && !strings.HasPrefix(err.Error(), "unexpected status code 200") {
glog.V(0).Infof("could not push metrics to prometheus push gateway %s: %v", addr, err)
}
if intervalSeconds <= 0 {
intervalSeconds = 15
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}
time.Sleep(time.Duration(intervalSeconds) * time.Second)
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}
}
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func SourceName(port uint32) string {
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hostname, err := os.Hostname()
if err != nil {
return "unknown"
}
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return fmt.Sprintf("%s:%d", hostname, port)
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}