Esempio n. 1
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func ExampleHistogram() {
	temps := prometheus.NewHistogram(prometheus.HistogramOpts{
		Name:    "pond_temperature_celsius",
		Help:    "The temperature of the frog pond.", // Sorry, we can't measure how badly it smells.
		Buckets: prometheus.LinearBuckets(20, 5, 5),  // 5 buckets, each 5 centigrade wide.
	})

	// Simulate some observations.
	for i := 0; i < 1000; i++ {
		temps.Observe(30 + math.Floor(120*math.Sin(float64(i)*0.1))/10)
	}

	// Just for demonstration, let's check the state of the histogram by
	// (ab)using its Write method (which is usually only used by Prometheus
	// internally).
	metric := &dto.Metric{}
	temps.Write(metric)
	fmt.Println(proto.MarshalTextString(metric))

	// Output:
	// histogram: <
	//   sample_count: 1000
	//   sample_sum: 29969.50000000001
	//   bucket: <
	//     cumulative_count: 192
	//     upper_bound: 20
	//   >
	//   bucket: <
	//     cumulative_count: 366
	//     upper_bound: 25
	//   >
	//   bucket: <
	//     cumulative_count: 501
	//     upper_bound: 30
	//   >
	//   bucket: <
	//     cumulative_count: 638
	//     upper_bound: 35
	//   >
	//   bucket: <
	//     cumulative_count: 816
	//     upper_bound: 40
	//   >
	// >
}
Esempio n. 2
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			Help:      "Total number of events sent by this member.",
		})

	pendingEventsGauge = prometheus.NewGauge(
		prometheus.GaugeOpts{
			Namespace: "etcd",
			Subsystem: "storage",
			Name:      "pending_events_total",
			Help:      "Total number of pending events to be sent.",
		})

	indexCompactionPauseDurations = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Namespace: "etcd",
			Subsystem: "storage",
			Name:      "index_compaction_pause_duration_milliseconds",
			Help:      "Bucketed histogram of index compaction puase duration.",
			// 0.5ms -> 1second
			Buckets: prometheus.ExponentialBuckets(0.5, 2, 12),
		})

	dbCompactionPauseDurations = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Namespace: "etcd",
			Subsystem: "storage",
			Name:      "db_compaction_pause_duration_milliseconds",
			Help:      "Bucketed histogram of db compaction puase duration.",
			// 1ms -> 4second
			Buckets: prometheus.ExponentialBuckets(1, 2, 13),
		})
Esempio n. 3
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// 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 snap

import "github.com/coreos/etcd/Godeps/_workspace/src/github.com/prometheus/client_golang/prometheus"

var (
	// TODO: save_fsync latency?
	saveDurations = prometheus.NewHistogram(prometheus.HistogramOpts{
		Namespace: "etcd",
		Subsystem: "snapshot",
		Name:      "save_total_durations_seconds",
		Help:      "The total latency distributions of save called by snapshot.",
		Buckets:   prometheus.ExponentialBuckets(0.001, 2, 14),
	})

	marshallingDurations = prometheus.NewHistogram(prometheus.HistogramOpts{
		Namespace: "etcd",
		Subsystem: "snapshot",
		Name:      "save_marshalling_durations_seconds",
		Help:      "The marshalling cost distributions of save called by snapshot.",
		Buckets:   prometheus.ExponentialBuckets(0.001, 2, 14),
	})
)

func init() {
	prometheus.MustRegister(saveDurations)
Esempio n. 4
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package etcdserver

import (
	"time"

	"github.com/coreos/etcd/Godeps/_workspace/src/github.com/prometheus/client_golang/prometheus"
	"github.com/coreos/etcd/pkg/runtime"
)

var (
	// TODO: with label in v3?
	proposeDurations = prometheus.NewHistogram(prometheus.HistogramOpts{
		Namespace: "etcd",
		Subsystem: "server",
		Name:      "proposal_durations_seconds",
		Help:      "The latency distributions of committing proposal.",
		Buckets:   prometheus.ExponentialBuckets(0.001, 2, 14),
	})
	proposePending = prometheus.NewGauge(prometheus.GaugeOpts{
		Namespace: "etcd",
		Subsystem: "server",
		Name:      "pending_proposal_total",
		Help:      "The total number of pending proposals.",
	})
	// This is number of proposal failed in client's view.
	// The proposal might be later got committed in raft.
	proposeFailed = prometheus.NewCounter(prometheus.CounterOpts{
		Namespace: "etcd",
		Subsystem: "server",
		Name:      "proposal_failed_total",
Esempio n. 5
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//
// 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 wal

import "github.com/coreos/etcd/Godeps/_workspace/src/github.com/prometheus/client_golang/prometheus"

var (
	syncDurations = prometheus.NewHistogram(prometheus.HistogramOpts{
		Namespace: "etcd",
		Subsystem: "wal",
		Name:      "fsync_durations_seconds",
		Help:      "The latency distributions of fsync called by wal.",
		Buckets:   prometheus.ExponentialBuckets(0.001, 2, 14),
	})
	lastIndexSaved = prometheus.NewGauge(prometheus.GaugeOpts{
		Namespace: "etcd",
		Subsystem: "wal",
		Name:      "last_index_saved",
		Help:      "The index of the last entry saved by wal.",
	})
)

func init() {
	prometheus.MustRegister(syncDurations)
	prometheus.MustRegister(lastIndexSaved)
}