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Full Discussion: best configuration for syslog.conf
Operating Systems Solaris best configuration for syslog.conf Post 302713421 by DGPickett on Wednesday 10th of October 2012 04:01:00 PM
Old 10-10-2012
Often, nothing less than some sort of "end to end test of each server", running on a dedicated testing host, will assure you that they are all alive. This is one reason I dislike "warm spare" architecture, where a host sits unused until a failover. It might be dead or the failover may be a failure. I am for divided load and application specific server testing. With the right architecture, the load can shift pretty instantly to the remaining server(s) when one dies, give or take any services in process there.

Like I said in one memorable customer meeting on reliability, "Sometimes the system is not down but just running very slowly." They asked "How can you tell if it is too slow>" I said, many times in the next hour, "A loud banging on the computer room door!" Testing should test not only function but latency/response-time. Good monitoring shows you when things are running slow and backing up, so you do not accidentally kill a live server trying to service it. There are many ways to make a server temporarily slow, like paging every page out. Even without thrashing, one good sweep can make for a million page faults as other apps reestablish themselves in RAM.
 

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LEARN ABOUT PLAN9

syslog

SYSLOG(8)                                                         System Logging                                                         SYSLOG(8)

NAME

       syslog-ng, syslogd

DESCRIPTION

       There are different syslog daemon implementations supported as the system's syslog service, currently syslogd, syslog-ng and rsyslogd

       The  first  installed daemon activates itself for the syslog service. Starting with openSUSE-11.2, it is rsyslogd, before it was syslog-ng.
       But this depends on the software selection during the installation.

       The name of the daemon used as syslog service is specified in the
       SYSLOG_DAEMON variable in /etc/sysconfig/syslog.

       The yast2 sysconfig module provides a comfortable way to switch to another installed daemon and restart the service.

       The /etc/init.d/syslog init script is able to handle all supported daemons.

BUGS

       Please report bugs at <http://www.suse.de/feedback>

AUTHOR

       Juergen Weigert <jw@novell.com>
       Marius Tomaschewski <mt@novell.com>

SEE ALSO

       sysklogd(8) syslogd(8) syslog.conf(5) syslog-ng(8) syslog-ng.conf(5) rsyslogd(8) rsyslog.conf(5)

syslog                                                               May 2008                                                            SYSLOG(8)
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