How to Disable DEBUG Level Logging in Spring Framework

How can I turn off DEBUG level logging in a Spring application?

# application.properties
logging.level.root=INFO

In Spring applications, logging is a crucial aspect of monitoring and debugging. However, DEBUG level logs can overwhelm the log output, making it more challenging to identify relevant information. Disabling DEBUG level logging can enhance performance and streamline log management.

# application.properties
# Set root logging level to INFO
logging.level.root=INFO 
# Optionally, set specific package level logging
logging.level.com.yourpackage=ERROR

Causes

• High volume of log messages due to DEBUG logging
• Performance degradation caused by excessive logging
• Difficulty in filtering important logs amidst DEBUG messages

Solutions

• Change the logging level in the `application.properties` file to reduce verbosity.
• Utilize logging frameworks like Logback or Log4j2 to customize logging levels per package.
• Employ environment-specific profiles to manage logging configurations effectively.

Mistake: Not properly specifying the logging level in the properties file.

Solution: Ensure you specify `logging.level.[your.package]=[LOG_LEVEL]` in your `application.properties`.

Mistake: Forgetting to restart the application after making changes to logging configuration.

Solution: Always restart your Spring application to apply changes in the configuration files.