The new logging section in cluster.conf has the following settings: to_stderr to_syslog to_file syslog_facilty syslog_level logfile debug
Here is my interpretation of how they all work: a,b,c,x,y,z are "connections" that are all *controlled independently* a is always on b is always on c is connected if debug=on x is connected if to_stderr=yes y is connected if to_syslog=yes z is connected if to_file=yes sources destinations (destination-specific options) error --a--| |--x-- stderr warn --b--|---------------|--y-- syslog (syslog_facility, syslog_level) debug --c--| |--z-- file (logfile) syslog_facility and syslog_level settings are only passed to syslog and do not effect connections in this picture at all. Similarly, logfile is only relevant to the file output, and does not effect any connections. So, a,b,c can all be turned on, and if y is enabled, then syslog can be tuned to filter some of them out. There's no way to selectively filter things out of file or stderr; if x or z are turned on, they will let everything pass that comes down the pipe (a,b,c). Common settings: a,b,c,y,z are turned on, and syslog_level is set to WARN. Messages a,b,c will all appear in the log file, but only a,b will appear in syslog.
