Level

Log levels are ordered by their severity, with .trace being the least severe and .critical being the most severe.

Log levels

• case trace

  Appropriate for messages that contain information normally of use only when tracing the execution of a program.

• case debug

  Appropriate for messages that contain information normally of use only when debugging a program.

• case info

  Appropriate for informational messages.

• case notice

  Appropriate for conditions that are not error conditions, but that may require special handling.

• case warning

  Appropriate for messages that are not error conditions, but more severe than .notice.

• case error

  Appropriate for error conditions.

• case critical

  Appropriate for critical error conditions that usually require immediate attention.