I am developing a large commercial program and keep confusing myself between what kind of information i want to log with Log.INFO and Log.DEBUG. Are there any standards or rules of thumb on what each type of log message contains?
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logging
• Debug: fine-grained statements concerning program state, typically used for debugging;
• Info: informational statements concerning program state, representing program events or behavior tracking;
• Warn: statements that describe potentially harmful events or states in the program;
• Error: statements that describe non-fatal errors in the application; this level is used quite often for logging handled exceptions;
• Fatal: statements representing the most severe of error conditions, assumedly resulting in program termination.
Found on http://www.beefycode.com/post/Log4Net-Tutorial-pt-1-Getting-Started.aspx
Also remember that all info(), error(), and debug() logging calls provide internal documentation within any application.
Source: Stackoverflow.com