[rsyslog] HUP restart or not - was: RE: rsyslog - what's next?

[Sayan Chowdhury]

Yes exactly, I have changed the script to do just that recently , I was just
wondering whether this is the reason why you get so much resistance when you
want to deprecate the traditional HUP processing...


On Tue, Jul 14, 2009 at 11:55 AM, Rainer Gerhards
<rgerhards at hq.adiscon.com>wrote:

> > -----Original Message-----
> > From: rsyslog-bounces at lists.adiscon.com [mailto:rsyslog-
> > bounces at lists.adiscon.com] On Behalf Of Sayan Chowdhury
> > Sent: Tuesday, July 14, 2009 5:53 PM
> > To: rsyslog-users
> > Subject: Re: [rsyslog] HUP restart or not - was: RE: rsyslog - what's
> next?
> >
> > Sorry if this is out of context.
> >
> > > this matches the traditional use of HUP to get syslogd to release the
> > > files it's writing to so that they can be rotated away.
> > >
> > > it doesn't re-read the config file due to the fact that the rsyslog
> config
> > > file is so complex and can significantly alter the software by loading
> > > modules.
> >
> > I am still tempted to remove the non-restart type of HUP. Actually, it is
> > the
> > root cause for a lot of complexities (read performance bottlenecks)
> inside
> > the engine. And all this for something that is not strictly needed.
> However,
> > there are always many opponents when I intend to remove the traditional
> HUP
> > behavior.
> >
> >
> > Is there any other way to make the rsyslog process reread the conf file
> > other than a restart?
> > This is the only reason I use the traditional SIGHUP processing, I send
> HUP
> > after I alter the rsyslog.conf file.
>
>
> No, but I always fail to see the big difference between typing
>
> $ kill -HUP ´cat /var/run/rsyslog.log´
>
> And
>
> $ /etc/rc.d/rsyslogd restart
>
> ;)
>
> Use the later one, and you do not need to use sighup. Even better, you can
> now use HUP for a lightweight "close the files only" log rotation thing ;)
>
> Rainer
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