"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。