After you set up the tracing library with your code and configure the Agent to collect APM data, optionally configure the tracing library as desired, including setting up Unified Service Tagging.
DD_AGENT_HOSTlocalhostDD_TRACE_AGENT_URL is set.DD_TRACE_AGENT_PORT8126DD_TRACE_AGENT_URL is set. If the Agent configuration sets receiver_port or DD_APM_RECEIVER_PORT to something other than the default 8126, then DD_TRACE_AGENT_PORT or DD_TRACE_AGENT_URL must match it.DD_TRACE_AGENT_URLDD_AGENT_HOST and DD_TRACE_AGENT_PORT if set. This URL supports HTTP, HTTPS, and Unix address schemes. If the Agent configuration sets receiver_port or DD_APM_RECEIVER_PORT to something other than the default 8126, then DD_TRACE_AGENT_PORT or DD_TRACE_AGENT_URL must match it.DD_ENVenv tag with the specified value to all generated spans.DD_SERVICEDD_TRACE_ANALYTICS_ENABLEDfalseDD_TRACE_ANALYTICS_SAMPLE_RATEDD_TRACE_ANALYTICS_ENABLED if set. A floating point number between 0.0 and 1.0.DD_TRACE_SAMPLING_RULES[{"sample_rate": 1.0}]sample_rate, and the name and service fields are optional. The sample_rate value must be between 0.0 and 1.0 (inclusive). Rules are applied in configured order to determine the trace’s sample rate.DD_SPAN_SAMPLING_RULESnilsample_rate value must be between 0.0 and 1.0 (inclusive).
For more information, see Ingestion Mechanisms.my-service and operation name http.request, up to 50 traces per second: '[{"service": "my-service", "name": "http.request", "sample_rate":0.5, "max_per_second": 50}]'DD_VERSIONversion tag with the specified value to all generated spans.DD_TAGSkey:value pairs.DD_TRACE_PROPAGATION_STYLE_INJECTDatadogDatadog, B3, or Datadog B3.DD_TRACE_PROPAGATION_STYLE_EXTRACTDatadogDatadog, B3, or Datadog B3.Documentation, liens et articles supplémentaires utiles:
