Disable opentelemetry exporter in Quarkus 3.x

[fabrii]

Hi. In Quarkus 2.x we had quarkus.opentelemetry.tracer.exporter.otlp.enabled to disable the export of the traces.

How is this handled in 3.x? Do we have to set quarkus.otel.traces.exporter to none, or let quarkus.otel.exporter.otlp.endpoint unset?

Thanks

[quarkus-bot[bot]]

/cc @brunobat (opentelemetry), @radcortez (opentelemetry)

[radcortez]

For compatibility you can use quarkus.otel.exporter.otlp.enabled. This is a build time property.

[brunobat]

If you want to disable tracing it's better just to disable the OTel SDK. You can now do it in runtime, per environment with the new quarkus.otel.sdk.disabled property.
Or like Roberto mentioned, at build time, but then it cannot be enabled without a new build.

[fabrii]

quarkus.otel.exporter.otlp.enabled seems a good fit. I still want the spans/baggage to be generated and propagated through API rest invocations.

Thanks!

[famod]

Sorry to revive this old discussion, but to me it feels like there is something missing:

• I have some environments where I cannot do an OTLP export (yet)
• still I want to have trace- and span-ids in my logfiles, so quarkus.otel.sdk.disabled is not for me
• I cannot use quarkus.otel.exporter.otlp.enabled because I build my app only once for all environments

So I'm missing a runtime property to disable the OTLP export. WDYT @radcortez @brunobat?

PS: Setting the *.endpoint properties to empty doesn't help.

[brunobat]

parentbased* will first take into account the parent span’s sampling decision.
From what I understand you want all or nothing regardless of the parent, therefore traceidratioshould be better.

I think the sampler really addresses this requirement.
Even when all your services are served by an OTel Collector, most likely you don't want to export all the spans, because of the high volume. Sampling with the right ratio will save storage without seriously harming analysis.

[famod]

Ok yeah, good point about the volume.

I'll re-check the docs, but maybe we should add a little hint that you can use that sampler threshold to switch off the export entirely at runtime.

[brunobat]

Definitely, it's a really good use case and it's not in the docs.

[brunobat]

Added this @famod: #35789
Please let me know if you have suggestions.

[famod]

Looking good, thanks!