Producer and Cosumers spans comes under different trace Id for Ottrace Propagator

[pkishork]

I a using kafka channel in my project . implemented manual instrumentation using open telemetry 1.9.1 libraries version . For all propagator except Ottrace propagator Producer and consumer spans come under same trace id . But for Ottrace comes under different trace id. do we need add other propagator along with ottrace ? or for Ottrace producer and consumer spans always come under different trace id ?

[jkwatson]

Unless you're needing to interop with OpenTracing, I probably wouldn't use the ottrace propagator at all. We'd need much more information about what you're doing to answer why you might not be getting proper propagation.

[pkishork]

in our project traceId of length 32 from producer side but when context goes to consumer side , OtTracePropagator :: inject => changes the traced id length of 16 chars
https://github.com/open-telemetry/opentelemetry-java/blob/98fdf9b4bc9c038cce81d1e92664c2400915994f/extensions/trace-propagators/src/main/java/io/opentelemetry/extension/trace/propagation/OtTracePropagator.java

Thats why getting different trace id on consumer side . so that producer spans and consumer spans shows under different trace id on jaegar UI .

what would be solution for this . how can we maintain same trace id on both side from producer and consumer side like any other format

[jkwatson]

Why are you using the ottrace propagator? It's only recommended for very narrow use-cases.