How to send logs to Azure Application Insights using log4net

Troubleshooting Tips

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  Missing Logs: Double-check the instrumentation key and verify your application has network access to Azure.


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  Log Level Issues: Confirm the log level in your log4net.config matches your expectations (e.g., INFO, DEBUG, ERROR).


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  Debug Locally: Temporarily add a ConsoleAppender in log4net.config to verify logs are being generated locally.

Conclusion

Integrating log4net with Azure Application Insights is a powerful way to monitor your application's behavior. With these steps, you’ll have logging configured and the ability to explore logs in the Azure portal for faster debugging and optimization. You can even set up alerts to proactively monitor critical issues.

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