How to configure logging levels

Configuring logging levels involves setting the severity threshold for log messages that an application or system will record. Logging levels help in managing the verbosity of logs, ensuring that only relevant information is captured for troubleshooting and monitoring purposes.

Common logging levels, from the most severe to the least, include:

• ERROR: Critical issues that prevent the application from functioning correctly.
• WARN: Potential problems or unexpected events that may lead to errors.
• INFO: General information about the application's state and flow.
• DEBUG: Detailed information for developers to trace the application's execution.
• TRACE: The most detailed level, capturing every step of the application's operation.

Example Configuration:
In a typical logging configuration file (e.g., log4j.properties for Java applications), you might set the logging level for a specific logger or the root logger as follows:

log4j.rootLogger=INFO, console
log4j.logger.com.example=DEBUG

In this example:

• The root logger is set to log messages at the INFO level and above.
• The logger for the com.example package is set to log messages at the DEBUG level and above.

Cloud Service Recommendation:
For managing logs in a cloud environment, consider using Tencent Cloud's Log Service. It provides a centralized logging solution that allows you to collect, store, search, and analyze logs from various sources. You can configure different logging levels to filter and manage log data effectively, ensuring that only necessary information is processed and stored.