How to reduce the log level for OpenTelemetryAppender?

[Mortinke]

We’re trying to prevent DEBUG logs from being exported as OTLP data when using the OpenTelemetry Java Agent with Logback. However, even with root level set to INFO and a ThresholdFilter on the OpenTelemetryAppender, DEBUG entries still show up in the exported logs. How can we reliably stop DEBUG logs from being exported?
What we’ve tried

• Set root logger level to INFO
• Added ThresholdFilter to the OpenTelemetry Logback appender
• Confirmed the Java agent is active and OTEL_LOGS_EXPORTER=otlp is set

Thanks in advance!

[trask]

Set root logger level to INFO

this should generally work, can you include your full logback configuration?

Added ThresholdFilter to the OpenTelemetry Logback appender

you shouldn't add the OpenTelemetry Logback appender if you are (also) using the Java agent Logback instrumentation

an option if you need more control is to disable the Java agent logback instrumentation and use the OpenTelemetry Logback appender (which will then go through the OpenTelemetry Logs API and be captured and exported in that way via the Java agent)