3.1 Configuration

Exercise

Switch to your Gateway terminal window and open the gateway.yaml file. Update the processors section with the following configuration:

  1. Add a filter processor:
    Configure the gateway to exclude spans with the name /_healthz. The error_mode: ignore directive ensures that any errors encountered during filtering are ignored, allowing the pipeline to continue running smoothly. The traces section defines the filtering rules, specifically targeting spans named /_healthz for exclusion.

      filter/health:                       # Defines a filter processor
    error_mode: ignore                 # Ignore errors
    traces:                            # Filtering rules for traces
      span:                            # Exclude spans named "/_healthz"
       - 'name == "/_healthz"'

  2. Add the filter processor to the traces pipeline:
    Include the filter/health processor in the traces pipeline. For optimal performance, place the filter as early as possible—right after the memory_limiter and before the batch processor. Here’s how the configuration should look:

    traces:
  receivers:
    - otlp
  processors:
    - memory_limiter
    - filter/health             # Filters data based on rules
    - resource/add_mode
    - batch
  exporters:
    - debug
    - file/traces

This setup ensures that health check related spans (/_healthz) are filtered out early in the pipeline, reducing unnecessary noise in your telemetry data.