opentelemetry-java-instrumentation/instrumentation/log4j/log4j-appender-2.17/javaagent/README.md

Settings for the Log4j Appender instrumentation

| System property | Type | Default | Description | |---|---------|--|------------------------------------------------------| | otel.instrumentation.log4j-appender.experimental-log-attributes | Boolean | false | Enable the capture of experimental span attributes thread.name and thread.id. | | otel.instrumentation.log4j-appender.experimental.capture-map-message-attributes | Boolean | false | Enable the capture of MapMessage attributes. | | otel.instrumentation.log4j-appender.experimental.capture-marker-attribute | Boolean | false | Enable the capture of Log4j markers as attributes. | | otel.instrumentation.log4j-appender.experimental.capture-context-data-attributes | String | | List of context data attributes to capture. Use the wildcard character * to capture all attributes. |