[CAMEL-17902] camel-opentelemetry - OTEL MDC keys are not matching OTEL keys

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.11.6, 3.16.0
• Fix Version/s: 3.17.0
• Component/s: camel-opentelemetry
• Labels: mdc
• Estimated Complexity: Unknown

Language

english

• Assignee: Claus Ibsen
• Reporter: Hugo Veillette
• Created: 04/Apr/22 23:47
• Updated: 11/May/22 20:41
• Resolved: 11/May/22 19:03

Description

The native OTEL MDC keys are not the same as the ones used by Camel OTEL component.

For instance:

`trace_id` vs `traceId`
`span_id` vs `spanId`

This is causing issue to log the MDC values in a consisting way that affects ability to correlate logs together.

Could we consider aligning with the OTEL spec for MDC keys?

Reference:
https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/docs/logger-mdc-instrumentation.md
https://camel.apache.org/components/3.16.x/others/opentelemetry.html#_mdc_logging