Question on tail_sampling processor, How to restrict 50% of health checks but allow all other traces using tail_sampling

[navin-rai]

Component(s)

processor/tailsampling

Is your feature request related to a problem? Please describe.

I have requirement where I need to restrict 50% of health checks traces being forwarded to X-Ray/Jaeger, but allow all other traces to be forwarded. Is it possible with tail_sampling ?

Describe the solution you'd like

Restrict 50% of health checks traces being forwarded to X-Ray/Jaeger, but allow all other traces to be forwarded

Describe alternatives you've considered

I tried to use below policy, but it doesn't seem to work

policies:
  [
    {
        name: always,
        type: always_sample
    },
    {
        name: error_http,
        type: numeric_attribute,
        numeric_attribute: { key: http.status_code, min_value: 300, max_value: 500 }
    },
    {
        name: error_status,
        type: status_code,
        status_code: { status_codes: [ERROR, UNSET] }
    },
    {
        name: latency,
        type: latency,
        latency: { threshold_ms: 200 }
    },
    {
        name: healthchecks_record_partial,
        type: and,
        and: {
            and_sub_policy:
                [
                    {
                        name: health_check_policy,
                        type: string_attribute,
                        string_attribute: { key: http.url, values: [\/health, \/metrics, \/ready, \/alive], enabled_regex_matching: true }
                    },
                    {
                        name: probabilistic - policy,
                        type: probabilistic,
                        probabilistic: { sampling_percentage: 50 }
                    },
                ]
        }
    }
  ]

Additional context

No response

[github-actions[bot]]

Pinging code owners:

• processor/tailsampling: @jpkrohling

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