Spring Cloud Data Flow context propagation from Spring boot service

[dimitri995]

Hello,

I would want to propagate context from spring boot application to a spring-cloud-task. We use SCDF to deploy & run the task, how can I pass the traceID / context in order to have the same traceparentId?

I don't use the java agent.

Thanks for your time,

Regards,

Dimitri

[trask]

hi @dimitri995, I don't think there's any auto- or library- instrumentation to support this currently, so you would need to propagate the trace context manually. for some details, check out https://opentelemetry.io/docs/instrumentation/java/manual/#context-propagation

[dimitri995]

Hi @trask ,

Thank you for your answer. But I can't propagate the context via headers. I can pass the context by an argument and I get this argument (context) in TaskService. But my question is how can I set a new context in TaskService (with context passed from SpringBoot Service as argument) ?
Context is immuable, so I can't set a new context...

I pass the actual spanContext from SpringBoot application:

From SCDF :

I would want to have just one traceID. Is it possible if I get the spanContext from the remote Service ? How can I do this ?

Thanks for your time,

Regards,

[dimitri995]

Hi,
I found the way to propagate the context manually with this article open-telemetry/opentelemetry-java#4668.

I need to pass traceId & SpanID as argument in SCDF in order to get it into ServiceB.

Thank you for your time,

Regards,

Dimitri

[dimitri995]

Hi @trask,

I have one question.

Is it possible to force/insure to export Span before the shutdown of application ?

Because when I execute my application task from SCDF. Span are not exported. But when I execute this one in local, span are exported.

Regards,

Dimitri

[dimitri995]

I found a solution by using ForceFlush with SdkTracerProvider.forceFlux()