README
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trace
框架支持 opentracing，默认集成 jaeger。
如果想开启 jaeger 收集 opentracing 数据，需要以下配置：
JAEGER_AGENT_HOSTjaeger 服务器IP或域名，默认为 127.0.0.1JAEGER_AGENT_PORTjaeger 服务器端口，默认为 6831JAEGER_SAMPLER_PARAM采样率，0-1 之间的浮点数，默认为0，也就是不采集
个人开发环境可以使用 docker 体验：
docker run -d --name jaeger \
-e COLLECTOR_ZIPKIN_HOST_PORT=:9411 \
-p 5775:5775/udp \
-p 6831:6831/udp \
-p 6832:6832/udp \
-p 5778:5778 \
-p 16686:16686 \
-p 14268:14268 \
-p 14250:14250 \
-p 9411:9411 \
jaegertracing/all-in-one:1.25
启动后访问 http://127.0.0.1:16686 即可打开查询界面。
Documentation
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Index ¶
- func GetDuration(span opentracing.Span) time.Duration
- func GetTraceID(ctx context.Context) (traceID string)
- func InjectTraceHeader(ctx opentracing.SpanContext, req *http.Request)
- func StartFollowSpanFromContext(ctx context.Context, operation string) (opentracing.Span, context.Context)
- func StartSpanFromContext(ctx context.Context, operationName string, opts ...opentracing.StartSpanOption) (opentracing.Span, context.Context)
- func StartSpanServerHTTP(r *http.Request, operation string) (req *http.Request, span opentracing.Span)
- func Stop()
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func GetDuration ¶ added in v1.3.2
func GetDuration(span opentracing.Span) time.Duration
GetDuration 查询当前 span 耗时
func InjectTraceHeader ¶
func InjectTraceHeader(ctx opentracing.SpanContext, req *http.Request)
InjectTrace 注入 OpenTracing 头信息
func StartFollowSpanFromContext ¶ added in v1.3.0
func StartFollowSpanFromContext(ctx context.Context, operation string) (opentracing.Span, context.Context)
StartFollowSpanFromContext 开起一个 follow 类型 span follow 类型用于异步任务，可能在 root span 结束之后才完成。
func StartSpanFromContext ¶
func StartSpanFromContext(ctx context.Context, operationName string, opts ...opentracing.StartSpanOption) (opentracing.Span, context.Context)
StartSpanFromContext starts and returns a Span with `operationName`, using any Span found within `ctx` as a ChildOfRef. If no such parent could be found, StartSpanFromContext creates a root (parentless) Span.
The second return value is a context.Context object built around the returned Span.
Example usage:
SomeFunction(ctx context.Context, ...) {
sp, ctx := opentracing.StartSpanFromContext(ctx, "SomeFunction")
defer sp.Finish()
...
}
func StartSpanServerHTTP ¶
func StartSpanServerHTTP(r *http.Request, operation string) (req *http.Request, span opentracing.Span)
StartSpanServerHTTP 启动http服务的span
Types ¶
This section is empty.
Source Files
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