Apache Reference: http_core, LogLevel
Logging Level
Syntax: LogLevel A
Example: LogLevel warn
Since: Apache 1.3
This directive adjusts the verbosity of the messages recorded
in the server's error logs (see the ErrorLog directive). The
following levels are available, in order of decreasing
significance: emerg (emergencies: system is unusable);
alert (action must be taken immediately); crit (critical
conditions); error (error conditions); warn (warning
conditions); notice (normal but significant condition);
info (informational messages); and debug (debugging
messages). When a particular level is specified, messages from
all other levels of higher significance will be reported as
well.