How do I add a custom SpanSuppressor to an auto instrumented service？

[tianlin]

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

I want to implement the circuit breaker mechanism, when there is excessive CPU and memory pressure, the tracer stops working. However, it seems that the current API cannot be extended to support Customized SpanSuppressor. It is hoped that relevant APIs can be added to support the implementation of customized SpanSuppressor.

Describe the solution you'd like

It is hoped that relevant APIs can be added to support the implementation of customized SpanSuppressor.

Describe alternatives you've considered

No response

Additional context

No response

[laurit]

It is unlikely we'll provide such an api because span suppressor is the wrong abstraction for disabling tracing, it is intended to use to suppress nested spans. See discussion in #10436

[tianlin]

It is unlikely we'll provide such an api because span suppressor is the wrong abstraction for disabling tracing, it is intended to use to suppress nested spans. See discussion in #10436

If I want to implement the Java-agent circuit breaker mechanism, how can I dynamically enable and disable all instrumentations?

[laurit]

If I want to implement the Java-agent circuit breaker mechanism, how can I dynamically enable and disable all instrumentations?

I think first you should consider where exactly do you want to stop the tracing. Agent uses https://github.com/open-telemetry/opentelemetry-java-instrumentation/tree/main/instrumentation-api for tracing and by convention calls https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/instrumentation-api/src/main/java/io/opentelemetry/instrumentation/api/instrumenter/Instrumenter.java#L109 before creating a span. If you wish to cut off spans there you'd need to modify that method as there are no extension points that could be used to hook into it. You could also consider using a sampler or perhaps even use a custom exporter that either delegates to otlp exporter (or whatever you normally use) or drops the spans.

[github-actions]

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