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Full Discussion: Want to get /var/log/messages redirected to a FIFO ...
Top Forums Programming Want to get /var/log/messages redirected to a FIFO ... Post 302272275 by Praveen_218 on Tuesday 30th of December 2008 05:46:18 AM
Old 12-30-2008
I'm not supposed to touch any system related configuration as the same is maintained by different set of guys (administrator group) and they keep it optimized as per their requirements.

Still will you please tell me how can I get the /var/log/messages data redirected to my daemon (my app will run as a daemon); if possible without any change in the config files for the syslog daemon?

Is it possible that I get the data directly from the /dev/log socket as a copy of the messages?
If I could get a way as to hook to /dev/log directly; its the most preffered way.

I had initially tried even by opening files and calling select() on the descriptors but I never get the intimation of the arrival of the new data into the /var/log/messages file from select().

I tested this by logging messages using logger utility and also wrote my own logger program but select() didn't report me of any new data logs.
Last edited by Praveen_218; 12-30-2008 at 07:52 AM..
 

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LEARN ABOUT DEBIAN

ha_logd

HA_LOGD(8)						  System administration utilitie						HA_LOGD(8)

NAME

       ha_logd - Logging Daemon for High-Availability Linux

SYNOPSIS

       ha_logd [-s] [-k] [-d] [-h] [-c file]

DESCRIPTION

       ha_logd is a logging daemon for Linux-HA. It receives messages from a local domain socket /var/lib/heartbeat/log_daemon, and writes them to
       appropriate files and syslog if enabled. The reason for utilizing this logging daemon is that occasionally Heartbeat suffers from disk I/O
       delays. By sending log messages to a logging daemon, heartbeat can avoid such I/O delays.

OPTIONS

       The following options are supported:

       -s
	   Show ha_logd status (either running or stopped)

       -k
	   Stop (kill) the daemon

       -d
	   Daemonize (without this option, ha_logd will run in the foreground)

       -h
	   Show a brief usage message

       -c file
	   Configuration file. You may configure a regular log file, debug log file, log facility, and entity. For details, see the example
	   ha_logd.cf file found in the documentation.

FILES

       o   /var/run/ha_logd.pid - PID file

       o   ha_logd.cf - example configuration file

SEE ALSO

       heartbeat(8), ha_logger(1)

AUTHORS

       Alan Robertson <alanr@unix.sh>
	   ha_logd

       Guochun Shi <gshi@ncsa.uiuc.edu>
	   ha_logd

       Marowsky-Bree Lars <lmb@suse.de>
	   ha_logd

       Florian Haas <florian.haas@linbit.com>
	   man page

cluster-glue 1.0.9						 December 8, 2009							HA_LOGD(8)
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