Multiple Trace-ids are generated for Kafka sink connector

[jiten686]

Describe the bug

I am using mongo-kafka-connect-1.6.1-confluence sink connector. I have integrate the opentelemetry java agent with kafka-connect with following environmental variables.
export JAVA_TOOL_OPTIONS=-javaagent:/otel_java_agent/opentelemetry-javaagent.jar
export OTEL_TRACES_EXPORTER=otlp
export OTEL_METRICS_EXPORTER=none
export OTEL_LOGS_EXPORTER=none
export OTEL_EXPORTER_OTLP_PROTOCOL=grpc
export OTEL_PROPAGATORS=tracecontext,baggage
export OTEL_EXPORTER_OTLP_ENDPOINT=http://. ..**

But I am seeing multiple traces are generated in kafka-connect.

What needs to be done so that single transaction will have same trace-id ?

Steps to reproduce

Use Opentelemetry JavaAgent 2.6.0.
Integrate with kafka-connect with above environment variable

Expected behavior

Same trace-id needs to generate for single transaction.

Actual behavior

Multiple trace-ids are generated for single transaction.

Javaagent or library instrumentation version

Opentelemetry JavaAgent 2.6.0 , mongo-kafka-connect-1.6.1-confluence

Environment

JDK:
OS:

Additional context

No response

[laurit]

@jiten686 is this duplicate of #12261

[jiten686]

@laurit Not completely. Basically, what I am asking is, a Kafka sink connector send data from a Kafka topic to a MongoDB database. Multiple processes are performed within the connector during a single transaction. However, I am observing multiple trace IDs for each process, instead of a single trace ID being propagated across all processes for the same transaction.

[laurit]

Most likely this is going to require a new instrumentation. We'd welcome a contribution for this. Alternatively you may work with the authors of mongo-kafka-connect and have opentelemetry support added there.
To increase the changes of anybody deciding to work on this issue consider providing a minimal application along with any necessary instructions that reproduces your issue.

[vasantteja]

@laurit If this is open can I take a stab at this?

[vasantteja]

Folks, I am working on this. I will open a pr once done.