-
Notifications
You must be signed in to change notification settings - Fork 2.4k
/
collector.go
162 lines (142 loc) · 4.77 KB
/
collector.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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
// 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 app
import (
"context"
"net/http"
"time"
"github.com/uber/jaeger-lib/metrics"
"go.uber.org/zap"
"google.golang.org/grpc"
"github.com/jaegertracing/jaeger/cmd/collector/app/processor"
"github.com/jaegertracing/jaeger/cmd/collector/app/sampling/strategystore"
"github.com/jaegertracing/jaeger/cmd/collector/app/server"
"github.com/jaegertracing/jaeger/pkg/healthcheck"
"github.com/jaegertracing/jaeger/storage/spanstore"
)
// Collector returns the collector as a manageable unit of work
type Collector struct {
// required to start a new collector
serviceName string
logger *zap.Logger
metricsFactory metrics.Factory
spanWriter spanstore.Writer
strategyStore strategystore.StrategyStore
hCheck *healthcheck.HealthCheck
spanProcessor processor.SpanProcessor
spanHandlers *SpanHandlers
// state, read only
hServer *http.Server
zkServer *http.Server
grpcServer *grpc.Server
}
// CollectorParams to construct a new Jaeger Collector.
type CollectorParams struct {
ServiceName string
Logger *zap.Logger
MetricsFactory metrics.Factory
SpanWriter spanstore.Writer
StrategyStore strategystore.StrategyStore
HealthCheck *healthcheck.HealthCheck
}
// New constructs a new collector component, ready to be started
func New(params *CollectorParams) *Collector {
return &Collector{
serviceName: params.ServiceName,
logger: params.Logger,
metricsFactory: params.MetricsFactory,
spanWriter: params.SpanWriter,
strategyStore: params.StrategyStore,
hCheck: params.HealthCheck,
}
}
// Start the component and underlying dependencies
func (c *Collector) Start(builderOpts *CollectorOptions) error {
handlerBuilder := &SpanHandlerBuilder{
SpanWriter: c.spanWriter,
CollectorOpts: *builderOpts,
Logger: c.logger,
MetricsFactory: c.metricsFactory,
}
c.spanProcessor = handlerBuilder.BuildSpanProcessor()
c.spanHandlers = handlerBuilder.BuildHandlers(c.spanProcessor)
if grpcServer, err := server.StartGRPCServer(&server.GRPCServerParams{
HostPort: builderOpts.CollectorGRPCHostPort,
Handler: c.spanHandlers.GRPCHandler,
TLSConfig: builderOpts.TLS,
SamplingStore: c.strategyStore,
Logger: c.logger,
}); err != nil {
c.logger.Fatal("could not start gRPC collector", zap.Error(err))
} else {
c.grpcServer = grpcServer
}
if httpServer, err := server.StartHTTPServer(&server.HTTPServerParams{
HostPort: builderOpts.CollectorHTTPHostPort,
Handler: c.spanHandlers.JaegerBatchesHandler,
HealthCheck: c.hCheck,
MetricsFactory: c.metricsFactory,
SamplingStore: c.strategyStore,
Logger: c.logger,
}); err != nil {
c.logger.Fatal("could not start the HTTP server", zap.Error(err))
} else {
c.hServer = httpServer
}
if zkServer, err := server.StartZipkinServer(&server.ZipkinServerParams{
HostPort: builderOpts.CollectorZipkinHTTPHostPort,
Handler: c.spanHandlers.ZipkinSpansHandler,
AllowedHeaders: builderOpts.CollectorZipkinAllowedHeaders,
AllowedOrigins: builderOpts.CollectorZipkinAllowedOrigins,
Logger: c.logger,
}); err != nil {
c.logger.Fatal("could not start the Zipkin server", zap.Error(err))
} else {
c.zkServer = zkServer
}
return nil
}
// Close the component and all its underlying dependencies
func (c *Collector) Close() error {
// gRPC server
if c.grpcServer != nil {
c.grpcServer.GracefulStop()
}
// HTTP server
if c.hServer != nil {
timeout, cancel := context.WithTimeout(context.Background(), 5*time.Second)
err := c.hServer.Shutdown(timeout)
if err != nil {
c.logger.Error("failed to stop the main HTTP server", zap.Error(err))
}
defer cancel()
}
// Zipkin server
if c.zkServer != nil {
timeout, cancel := context.WithTimeout(context.Background(), 5*time.Second)
err := c.zkServer.Shutdown(timeout)
if err != nil {
c.logger.Error("failed to stop the Zipkin server", zap.Error(err))
}
defer cancel()
}
if err := c.spanProcessor.Close(); err != nil {
c.logger.Error("failed to close span processor.", zap.Error(err))
}
return nil
}
// SpanHandlers returns span handlers used by the Collector.
func (c *Collector) SpanHandlers() *SpanHandlers {
return c.spanHandlers
}