OpenTelemetry 分布式追踪与指标采集实践

OpenTelemetry 分布式追踪与指标采集实践环境变量OTEL_SERVICE_NAME=web

OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4318

OTEL_RESOURCE_ATTRIBUTES=env=prod,region=ap-south-1

Collector 配置示例receivers:

otlp:

protocols:

http:

exporters:

logging:

loglevel: info

processors:

batch: {}

service:

pipelines:

traces:

receivers: [otlp]

processors: [batch]

exporters: [logging]

metrics:

receivers: [otlp]

processors: [batch]

exporters: [logging]

采样与资源在 SDK 层设置比例采样（如 0.1）以控制开销使用 `OTEL_RESOURCE_ATTRIBUTES` 为服务与区域等打标签验证通过 Collector 日志观察接收与导出使用查看端（如 Tempo/Jaeger）确认 TraceId 串联正确总结规范的采样与资源标注配合 Collector，能快速落地追踪与指标采集并便于扩展。