How to Disable Log and Metric Providers to Stop Instrumentation for Logs and Metrics?

[shahparthiv]

Hi everyone,

I'm working on a project where we need to temporarily disable the logging and metrics instrumentation to reduce resource usage. I've looked through the documentation but haven't found a clear way to fully disable log and metric providers.

Is there a configuration setting, environment variable, or other approach to entirely disable these providers? Any advice or references would be greatly appreciated!

Thanks in advance!

[laurit]

Try setting OTEL_METRICS_EXPORTER=none and OTEL_LOGS_EXPORTER=none.

[h0cheung]

With these configs, I still found something like io.opentelemetry.javaagent.instrumentation.log4j.appender.v2_17.Log4jHelper.capture(Logger, String, StackTraceElement, Level, Marker, Message, Throwable) are costing CPU.

[laurit]

This isn't unexpected. Setting the exporter to none doesn't disable the instrumentation. When this discussion was created we didn't have a good way to detect whether the exporter was disabled or not. Now this might be possible using https://github.com/open-telemetry/opentelemetry-java/blob/9d4f61ad0b0abfe90594d73d11bd328fead0dfca/api/incubator/src/main/java/io/opentelemetry/api/incubator/logs/ExtendedLogger.java#L20 You should create a new issue if you wish for someone to look at this. It is unlikely that anybody will work on this based on a comment in an old discussion. In your issue it would be nice if you could elaborate whether the cpu consumption of Log4jHelper.capture is significant or not. If it is significant then it would be nice to know what exactly there consumes the cpu.