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From Ceki Gülcü <>
Subject FATAL in SLF4J, was: [VOTE] Logging Direction
Date Mon, 04 Jul 2005 20:30:00 GMT

Trustin Lee wrote:

 > SLF4J doesn't have "FATAL" level AFAIK.  Would this be OK?

This question is answered in the SLF4J FAQ [1] quoted below:

   Why doesn't the org.slf4j.Logger interface have methods for the FATAL

   From the  stand point  of a logging  system, the distinction  between a
   fatal error and an error  is usually not very useful. Most programmers
   exit the  application when  a fatal error  is encountered.  However, a
   logging library cannot (and should not) decide on its own to terminate
   an application. The initiative to exit the application must be left to
   the developer.

   Thus, the most the FATAL level can do is to highlight a given error as
   the cause for application to  crash. However, errors are by definition
   exceptional events  that merit attention. If a  given situation causes
   errors  to be  logged, the  causes should  be attended  to as  soon as
   possible. However, if the "error" is actually a normal situation which
   cannot  be prevented  but merits  being aware  of, then  it  should be
   marked as WARN, not ERROR.

   Assuming  the ERROR level  designates exceptional  situations meriting
   close attention,  we are inclined to  believe that the  FATAL level is

Does this answer your question?



Ceki Gülcü

   The complete log4j manual:

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