/
metrics.go
103 lines (90 loc) · 3.67 KB
/
metrics.go
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// Copyright 2023 TiKV Project 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 controller
import "github.com/prometheus/client_golang/prometheus"
const (
namespace = "resource_manager_client"
requestSubsystem = "request"
tokenRequestSubsystem = "token_request"
// TODO: remove old label in 8.x
resourceGroupNameLabel = "name"
newResourceGroupNameLabel = "resource_group"
)
var (
resourceGroupStatusGauge = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: namespace,
Subsystem: "resource_group",
Name: "status",
Help: "Status of the resource group.",
}, []string{resourceGroupNameLabel, newResourceGroupNameLabel})
successfulRequestDuration = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: namespace,
Subsystem: requestSubsystem,
Name: "success",
Buckets: []float64{.005, .01, .05, .1, .5, 1, 5, 10, 20, 25, 30}, // 0.005 ~ 30
Help: "Bucketed histogram of wait duration of successful request.",
}, []string{resourceGroupNameLabel, newResourceGroupNameLabel})
failedLimitReserveDuration = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: namespace,
Subsystem: requestSubsystem,
Name: "limit_reserve_time_failed",
Buckets: []float64{.005, .01, .05, .1, .5, 1, 5, 10, 20, 25, 30}, // 0.005 ~ 30
Help: "Bucketed histogram of wait duration of failed request.",
}, []string{resourceGroupNameLabel, newResourceGroupNameLabel})
failedRequestCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: namespace,
Subsystem: requestSubsystem,
Name: "fail",
Help: "Counter of failed request.",
}, []string{resourceGroupNameLabel, newResourceGroupNameLabel})
requestRetryCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: namespace,
Subsystem: requestSubsystem,
Name: "retry",
Help: "Counter of retry time for request.",
}, []string{resourceGroupNameLabel, newResourceGroupNameLabel})
tokenRequestDuration = prometheus.NewHistogramVec(
prometheus.HistogramOpts{
Namespace: namespace,
Subsystem: tokenRequestSubsystem,
Name: "duration",
Help: "Bucketed histogram of latency(s) of token request.",
}, []string{"type"})
resourceGroupTokenRequestCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: namespace,
Subsystem: tokenRequestSubsystem,
Name: "resource_group",
Help: "Counter of token request by every resource group.",
}, []string{resourceGroupNameLabel, newResourceGroupNameLabel})
)
var (
// WithLabelValues is a heavy operation, define variable to avoid call it every time.
failedTokenRequestDuration = tokenRequestDuration.WithLabelValues("fail")
successfulTokenRequestDuration = tokenRequestDuration.WithLabelValues("success")
)
func init() {
prometheus.MustRegister(resourceGroupStatusGauge)
prometheus.MustRegister(successfulRequestDuration)
prometheus.MustRegister(failedRequestCounter)
prometheus.MustRegister(failedLimitReserveDuration)
prometheus.MustRegister(requestRetryCounter)
prometheus.MustRegister(tokenRequestDuration)
prometheus.MustRegister(resourceGroupTokenRequestCounter)
}