Manual:$wgOpenTelemetryConfig

Profiling: $wgOpenTelemetryConfig
Configuration for OpenTelemetry instrumentation, or null to disable it.
Introduced in version:	1.43.0 (Gerrit change 1061573; git #16ec1a37)
Removed in version:	Still in use
Allowed values:	(object) or null
Default value:	null
Other settings: Alphabetical | By function

Details

Configuration for OpenTelemetry instrumentation, or null to disable it.

Possible keys:

• samplingProbability - probability in % of sampling a trace for which no sampling decision has been taken yet. Must be between 0 and 100.
• serviceName - name of the service being instrumented.
• endpoint - URL of the OpenTelemetry collector to send trace data to. This has to be an endpoint accepting OTLP data over HTTP (not gRPC).

An example config to send data to a local OpenTelemetry or Jaeger collector instance:

$wgOpenTelemetryConfig = [
	'samplingProbability' => 0.1,
	'serviceName' => 'mediawiki-local',
	'endpoint' => 'http://127.0.0.1:4318/v1/traces',
];