Logging Levels

Every logged event is categorized with one of a number of severity levels.

  • DEBUG or TRACE events provide low-level diagnostic information about the system, which can be used to assist in diagnosing a process or system that is not behaving as expected. DEBUG or TRACE events can generate high volumes of low level output, so are typically turned on and off as required.
  • INFO and AUDIT events provide information about what is happening on a normally running system. AUDIT events are those which you can audit centrally, whereas INFO events are not expected to require central auditing.
  • SERVICE events refer to start and end messages from particular services.
  • WARN, ERROR or FATAL events provide warnings or errors about the system that need to be relayed to system administrators and users.