Feilsøkingsnivåer

Feilsøkingsnivåer, often referred to as logging levels, are a way to categorize the severity and importance of messages generated by a software application. They help developers and administrators understand the state of a system and identify problems more efficiently. Different levels are typically defined, each representing a specific type of event.

The most common levels, in order of increasing severity, are DEBUG, INFO, WARN, ERROR, and FATAL. DEBUG messages provide detailed information useful for developers during the development and testing phases, offering insights into the program's internal workings. INFO messages report on the normal operational status and progress of the application, such as a successful transaction or a service starting.

WARN (Warning) messages indicate potential issues that do not necessarily stop the application but might lead to problems later if not addressed. These could be deprecated features being used or unexpected but recoverable situations. ERROR messages signify that a specific operation has failed, but the application can continue to run. This might involve a database connection failing or an invalid input being received.

FATAL (Critical) messages represent severe, unrecoverable errors that typically cause the application to terminate immediately. These are the most serious events and require immediate attention. By configuring the appropriate feilsøkingsnivå, one can control the verbosity of the logs, ensuring that only relevant information is captured, thus making troubleshooting more manageable.