Log Level

Definitions

1. A severity classification assigned to each log message — typically DEBUG, INFO, WARN, ERROR, and FATAL (in ascending severity) — allowing operators to filter output by importance. Setting the log level to WARN, for example, suppresses all DEBUG and INFO messages.

   In plain English: A label on each log message that says how important it is, so you can filter out the noise and focus on what matters.

   Example: "Set the log level to DEBUG in staging so we can see the SQL queries, but keep it at WARN in production or we'll drown in noise."

Related Terms

• Logging
• Seq
• Trace
• Structured Logging
• Correlation ID
• Log Aggregation
• Log Parser
• Logger
• Logging Framework
• Performance Monitoring
• Stack Trace
• Fluentd
• Elastic Stack
• Debugging by Printf
• Emoji Debugging
• Log Everything
• Async Error
• Cloud Logging
• Console Log
• Custom Logger
• AI Debugging
• AI Logging