Filter Health checks

[mmaragkaki]

I am trying to filter health checks from the opentelemetry collector my config is this:

exporters:
  debug: {}
extensions:
  health_check:
    endpoint: ${env:MY_POD_IP}:13133
processors:
  batch: {}
  filter/drop_helath:
    traces:
      span:
        - attributes["http.route"] == "/health"
  memory_limiter:
    check_interval: 5s
    limit_percentage: 80
    spike_limit_percentage: 25
receivers:
  jaeger:
    protocols:
      grpc:
        endpoint: ${env:MY_POD_IP}:14250
      thrift_compact:
        endpoint: ${env:MY_POD_IP}:6831
      thrift_http:
        endpoint: ${env:MY_POD_IP}:14268
  otlp:
    protocols:
      grpc:
        endpoint: ${env:MY_POD_IP}:4317
      http:
        endpoint: ${env:MY_POD_IP}:4318
  prometheus:
    config:
      scrape_configs:
      - job_name: opentelemetry-collector
        scrape_interval: 10s
        static_configs:
        - targets:
          - ${env:MY_POD_IP}:8888
  zipkin:
    endpoint: ${env:MY_POD_IP}:9411
service:
  extensions:
  - health_check
  pipelines:
    logs:
      exporters:
      - debug
      processors:
      - memory_limiter
      - batch
      receivers:
      - otlp
    metrics:
      exporters:
      - debug
      processors:
      - memory_limiter
      - batch
      receivers:
      - otlp
      - prometheus
    traces:
      exporters:
      - debug
      processors:
      - filter/drop_health
      - memory_limiter
      - batch
      receivers:
      - otlp
      - jaeger
      - zipkin
  telemetry:
    metrics:
      readers:
      - pull:
          exporter:
            prometheus:
              host: ${env:MY_POD_IP}
              port: 8888

but i am keep seeing health check traces on my tempo at grafana. Any ides what is going wrong?

[0xVijay]

small thing first, you have a typo in the processor name filter/drop_helath should be health but that is cosmetic. the actual issue is probably that the processor is defined but not wired into the pipeline. can you share the service.pipelines.traces.processors section, the filter only runs if it is listed there.

also the recommended modern syntax uses error_mode for safety:

filter/drop_health:
  error_mode: ignore
  traces:
    span:
      - attributes["http.route"] == "/health"

without error_mode: ignore, any span missing the http.route attribute will throw an error and the condition fails. with ignore it just skips them and continues.