Log4j.xml is a java based logging utility to capture information at various log levels about application
Log Level:
OFF - The highest possible rank and is intended to turn off logging.
FATAL - Severe errors that cause premature termination.
Expect these to be immediately visible on a status console.
ERROR - Other runtime errors or unexpected conditions. Expect these to be immediately visible on a status console.
WARN - Use of deprecated APIs, poor use of API, 'almost' errors, other runtime situations that are undesirable or unexpected, but not necessarily "wrong". Expect these to be immediately visible on a status console.
INFO - Interesting runtime events (startup/shutdown). Expect these to be immediately visible on a console, so be conservative and keep to a minimum.
DEBUG - Detailed information on the flow through the system. Expect these to be written to logs only.
TRACE - Most detailed information. Expect these to be written to logs only.
Log Level:
OFF - The highest possible rank and is intended to turn off logging.
FATAL - Severe errors that cause premature termination.
Expect these to be immediately visible on a status console.
ERROR - Other runtime errors or unexpected conditions. Expect these to be immediately visible on a status console.
WARN - Use of deprecated APIs, poor use of API, 'almost' errors, other runtime situations that are undesirable or unexpected, but not necessarily "wrong". Expect these to be immediately visible on a status console.
INFO - Interesting runtime events (startup/shutdown). Expect these to be immediately visible on a console, so be conservative and keep to a minimum.
DEBUG - Detailed information on the flow through the system. Expect these to be written to logs only.
TRACE - Most detailed information. Expect these to be written to logs only.
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