-
Notifications
You must be signed in to change notification settings - Fork 2.4k
/
connect_metrics.go
66 lines (55 loc) · 2.29 KB
/
connect_metrics.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
// Copyright (c) 2020 The Jaeger 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 reporter
import (
"expvar"
"github.com/jaegertracing/jaeger/pkg/metrics"
)
type connectMetrics struct {
// used for reflect current connection stability
Reconnects metrics.Counter `metric:"collector_reconnects" help:"Number of successful connections (including reconnects) to the collector."`
// Connection status that jaeger-agent to jaeger-collector, 1 is connected, 0 is disconnected
Status metrics.Gauge `metric:"collector_connected" help:"Status of connection between the agent and the collector; 1 is connected, 0 is disconnected"`
}
// ConnectMetrics include connectMetrics necessary params if want to modify metrics of connectMetrics, must via ConnectMetrics API
type ConnectMetrics struct {
metrics connectMetrics
target *expvar.String
}
// NewConnectMetrics will be initialize ConnectMetrics
func NewConnectMetrics(mf metrics.Factory) *ConnectMetrics {
cm := &ConnectMetrics{}
metrics.MustInit(&cm.metrics, mf.Namespace(metrics.NSOptions{Name: "connection_status"}), nil)
if r := expvar.Get("gRPCTarget"); r == nil {
cm.target = expvar.NewString("gRPCTarget")
} else {
cm.target = r.(*expvar.String)
}
return cm
}
// OnConnectionStatusChange used for pass the status parameter when connection is changed
// 0 is disconnected, 1 is connected
// For quick view status via use `sum(jaeger_agent_connection_status_collector_connected{}) by (instance) > bool 0`
func (cm *ConnectMetrics) OnConnectionStatusChange(connected bool) {
if connected {
cm.metrics.Status.Update(1)
cm.metrics.Reconnects.Inc(1)
} else {
cm.metrics.Status.Update(0)
}
}
// RecordTarget writes the current connection target to an expvar field.
func (cm *ConnectMetrics) RecordTarget(target string) {
cm.target.Set(target)
}