3.1 Configuration

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.