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Log Level - CI/CD Glossary Definition

A log level marks how severe a message is (DEBUG through FATAL) so you can filter noisy CI output down to what matters.

A log level classifies the severity of a log message, typically DEBUG, INFO, WARN, ERROR, and FATAL. Filtering by level keeps CI logs readable and controls volume.

In CI

Set the log level via an environment variable (for example LOG_LEVEL=debug) only when reproducing a failure. Leaving DEBUG on permanently bloats job logs and slows searches.

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