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W-21921734: OTEL Resource attributes documentation. #3315

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W-21921734: OTEL Resource attributes documentation. #3315

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12 changes: 12 additions & 0 deletions modules/ROOT/pages/otel-support.adoc
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Expand Up @@ -430,6 +430,18 @@ Each generated span has an associated tracing level. Flow spans use the `OVERVIE

In most cases, the default tracing level is the best choice. Use `DEBUG` for troubleshooting.

== Custom resource attributes

In OpenTelemetry, a Resource represents the entity that produces telemetry data. Resource attributes are key-value pairs that help identify and distinguish the source of telemetry data across distributed systems.

Mule runtime supports configuring fixed-value custom resource attributes.

[%header%autowidth.spread,cols="a,a,a"]
|===
| Property | Default Value | Description
| `mule.openTelemetry.exporter.resource.attributes` | Empty list | Comma-separated list of resource attributes included in every span and logs export batch.
|===

=== Custom Service Name and Service Namespace

Service attributes identify the source of the telemetry data, Mule applications in this case. Mule runtime supports setting the `service.name` and `service.namespace` properties to custom values:
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