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Elia Battistonc8d0d462022-02-22 16:30:51 +01001// Copyright (c) 2017-2018 Uber Technologies, Inc.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package jaeger
16
17import (
18 "github.com/uber/jaeger-lib/metrics"
19)
20
21// Metrics is a container of all stats emitted by Jaeger tracer.
22type Metrics struct {
23 // Number of traces started by this tracer as sampled
24 TracesStartedSampled metrics.Counter `metric:"traces" tags:"state=started,sampled=y" help:"Number of traces started by this tracer as sampled"`
25
26 // Number of traces started by this tracer as not sampled
27 TracesStartedNotSampled metrics.Counter `metric:"traces" tags:"state=started,sampled=n" help:"Number of traces started by this tracer as not sampled"`
28
29 // Number of traces started by this tracer with delayed sampling
30 TracesStartedDelayedSampling metrics.Counter `metric:"traces" tags:"state=started,sampled=n" help:"Number of traces started by this tracer with delayed sampling"`
31
32 // Number of externally started sampled traces this tracer joined
33 TracesJoinedSampled metrics.Counter `metric:"traces" tags:"state=joined,sampled=y" help:"Number of externally started sampled traces this tracer joined"`
34
35 // Number of externally started not-sampled traces this tracer joined
36 TracesJoinedNotSampled metrics.Counter `metric:"traces" tags:"state=joined,sampled=n" help:"Number of externally started not-sampled traces this tracer joined"`
37
38 // Number of sampled spans started by this tracer
39 SpansStartedSampled metrics.Counter `metric:"started_spans" tags:"sampled=y" help:"Number of spans started by this tracer as sampled"`
40
41 // Number of not sampled spans started by this tracer
42 SpansStartedNotSampled metrics.Counter `metric:"started_spans" tags:"sampled=n" help:"Number of spans started by this tracer as not sampled"`
43
44 // Number of spans with delayed sampling started by this tracer
45 SpansStartedDelayedSampling metrics.Counter `metric:"started_spans" tags:"sampled=delayed" help:"Number of spans started by this tracer with delayed sampling"`
46
47 // Number of spans finished by this tracer
48 SpansFinishedSampled metrics.Counter `metric:"finished_spans" tags:"sampled=y" help:"Number of sampled spans finished by this tracer"`
49
50 // Number of spans finished by this tracer
51 SpansFinishedNotSampled metrics.Counter `metric:"finished_spans" tags:"sampled=n" help:"Number of not-sampled spans finished by this tracer"`
52
53 // Number of spans finished by this tracer
54 SpansFinishedDelayedSampling metrics.Counter `metric:"finished_spans" tags:"sampled=delayed" help:"Number of spans with delayed sampling finished by this tracer"`
55
56 // Number of errors decoding tracing context
57 DecodingErrors metrics.Counter `metric:"span_context_decoding_errors" help:"Number of errors decoding tracing context"`
58
59 // Number of spans successfully reported
60 ReporterSuccess metrics.Counter `metric:"reporter_spans" tags:"result=ok" help:"Number of spans successfully reported"`
61
62 // Number of spans not reported due to a Sender failure
63 ReporterFailure metrics.Counter `metric:"reporter_spans" tags:"result=err" help:"Number of spans not reported due to a Sender failure"`
64
65 // Number of spans dropped due to internal queue overflow
66 ReporterDropped metrics.Counter `metric:"reporter_spans" tags:"result=dropped" help:"Number of spans dropped due to internal queue overflow"`
67
68 // Current number of spans in the reporter queue
69 ReporterQueueLength metrics.Gauge `metric:"reporter_queue_length" help:"Current number of spans in the reporter queue"`
70
71 // Number of times the Sampler succeeded to retrieve sampling strategy
72 SamplerRetrieved metrics.Counter `metric:"sampler_queries" tags:"result=ok" help:"Number of times the Sampler succeeded to retrieve sampling strategy"`
73
74 // Number of times the Sampler failed to retrieve sampling strategy
75 SamplerQueryFailure metrics.Counter `metric:"sampler_queries" tags:"result=err" help:"Number of times the Sampler failed to retrieve sampling strategy"`
76
77 // Number of times the Sampler succeeded to retrieve and update sampling strategy
78 SamplerUpdated metrics.Counter `metric:"sampler_updates" tags:"result=ok" help:"Number of times the Sampler succeeded to retrieve and update sampling strategy"`
79
80 // Number of times the Sampler failed to update sampling strategy
81 SamplerUpdateFailure metrics.Counter `metric:"sampler_updates" tags:"result=err" help:"Number of times the Sampler failed to update sampling strategy"`
82
83 // Number of times baggage was successfully written or updated on spans.
84 BaggageUpdateSuccess metrics.Counter `metric:"baggage_updates" tags:"result=ok" help:"Number of times baggage was successfully written or updated on spans"`
85
86 // Number of times baggage failed to write or update on spans.
87 BaggageUpdateFailure metrics.Counter `metric:"baggage_updates" tags:"result=err" help:"Number of times baggage failed to write or update on spans"`
88
89 // Number of times baggage was truncated as per baggage restrictions.
90 BaggageTruncate metrics.Counter `metric:"baggage_truncations" help:"Number of times baggage was truncated as per baggage restrictions"`
91
92 // Number of times baggage restrictions were successfully updated.
93 BaggageRestrictionsUpdateSuccess metrics.Counter `metric:"baggage_restrictions_updates" tags:"result=ok" help:"Number of times baggage restrictions were successfully updated"`
94
95 // Number of times baggage restrictions failed to update.
96 BaggageRestrictionsUpdateFailure metrics.Counter `metric:"baggage_restrictions_updates" tags:"result=err" help:"Number of times baggage restrictions failed to update"`
97
98 // Number of times debug spans were throttled.
99 ThrottledDebugSpans metrics.Counter `metric:"throttled_debug_spans" help:"Number of times debug spans were throttled"`
100
101 // Number of times throttler successfully updated.
102 ThrottlerUpdateSuccess metrics.Counter `metric:"throttler_updates" tags:"result=ok" help:"Number of times throttler successfully updated"`
103
104 // Number of times throttler failed to update.
105 ThrottlerUpdateFailure metrics.Counter `metric:"throttler_updates" tags:"result=err" help:"Number of times throttler failed to update"`
106}
107
108// NewMetrics creates a new Metrics struct and initializes it.
109func NewMetrics(factory metrics.Factory, globalTags map[string]string) *Metrics {
110 m := &Metrics{}
111 // TODO the namespace "jaeger" should be configurable
112 metrics.MustInit(m, factory.Namespace(metrics.NSOptions{Name: "jaeger"}).Namespace(metrics.NSOptions{Name: "tracer"}), globalTags)
113 return m
114}
115
116// NewNullMetrics creates a new Metrics struct that won't report any metrics.
117func NewNullMetrics() *Metrics {
118 return NewMetrics(metrics.NullFactory, nil)
119}