Red Hat Bugzilla – Bug 73306
sysklogd ships with inefficient default settings for Postfix
Last modified: 2014-03-16 22:30:52 EDT
From Bugzilla Helper:
User-Agent: Mozilla/4.79 [en] (X11; U; Linux 2.4.18-12.5 i686; Nav)
Description of problem:
# tail -11 /etc/postfix/README_FILES/LINUX_README
LINUX SYSLOGD PERFORMANCE
LINUX syslogd uses synchronous writes by default. Because of this,
syslogd can actually use more system resources than Postfix. To
avoid such madness, disable synchronous mail logfile writes by
editing /etc/syslog.conf and by prepending a - to the logfile name:
Send a "kill -HUP" to the syslogd to make the change effective.
# cat /etc/syslog.conf | grep maillog
# rpm -qf /etc/syslog.conf
# rpm -q postfix
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Read interesting files randomly. ;-)
This is performance issue, I guess.
Is this still a issue? It can't be so hard to fix this that it takes 2
years to fix. It's only matter of adding one minus sign to
My /etc/syslog.conf has these lines:
# Log all the mail messages in one place.
and it have been working well for years.
For starters, this should be filed against syslog, not postfix....
agreed, this is not a postfix issue but rather a sysklogd issue,
reassigneing to notting
Seems a sensible fix
Fixed in 1.4.1rh-21.