Upgrade to clamav 0.90.2 makes scanning extremely slow

[Glenn Steen]

On 19/04/07, Jeremy Blonde <JeremyBlonde at grant.k12.ca.us> wrote:
> > -----Original Message-----
> > From: mailscanner-bounces at lists.mailscanner.info
> > [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf
> > Of Denis Beauchemin
> > Sent: Thursday, April 19, 2007 7:04 AM
> > To: MailScanner discussion
> > Subject: Re: Upgrade to clamav 0.90.2 makes scanning extremely slow
> >
> > Jeff A. Earickson a écrit :
> > > On Thu, 19 Apr 2007, Dörfler Andreas wrote:
> > >
> > >> Date: Thu, 19 Apr 2007 11:35:12 +0200
> > >> From: Dörfler Andreas <Andreas.Doerfler at kempten.de>
> > >> Reply-To: MailScanner discussion
> > <mailscanner at lists.mailscanner.info>
> > >> To: MailScanner discussion <mailscanner at lists.mailscanner.info>
> > >> Subject: RE: Upgrade to clamav 0.90.2 makes scanning extremely slow
> > >>
> > >>
> > >>> Hi,
> > >>>
> > >>> I see the same thing on 3 servers. I might revert back to
> > 0.90.1... or
> > >>> hope that a fix is released soon. I'm using Dag Wieers
> > repository for
> > >>> clamav.
> > >>>
> > >>>       Jens
> > >>
> > >>
> > >> hi,
> > >>
> > >> dont know if this is an good idea
> > >>
> > >>> **Important note**: on April 16th CHM, CAB and PDF
> > handlers will be
> > >>> disabled for 0.90 and 0.90.1 users through the dynamic engine
> > >>> configuration module (DCONF). Please upgrade to 0.90.2
> > immediately.
> > >>
> > >>
> > >> quick check on my system shows me no problems but i run a self
> > >> compiled version
> > >
> > > I've been running 0.90.2 since last Friday on Solaris 10,
> > with no change
> > > in performance over 0.90.1.  Self compiled version...
> > >
> > > Jeff Earickson
> > > Colby College
> > I've been running 0.90.2 (self-compiled with Julian's Install-Clam-SA
> > script) since Tuesday on RHEL4 servers and didn't see a
> > performance hit
> > either.  My servers are running clamavmodule
> > (Mail-ClamAV-0.20.tar.gz)
> > which I had to recompile after installing 0.90.2.
> >
> > Denis
> >
> > --
> >    _
> >   °v°   Denis Beauchemin, analyste
> >  /(_)\  Université de Sherbrooke, S.T.I.
> >   ^ ^   T: 819.821.8000x62252 F: 819.821.8045
> >
> >
> >
>
> I've been running 0.90.2 since yesterday under Gentoo Linux and I'm seeing a huge performance impact.  I usually have only a couple of messages in the hold queue but I'm now seeing an average of 30 msgs waiting.  I also see clamscan taking a long time when viewed with top.  I guess I'll be going back to 0.90.1 until the issue is resolved.
>
> BTW, since it's Gentoo, clamav is complied from source.
>
I saw clamscan linger at 99% CPU after doing a "copy over&ldconfig"
type of source install. Stopped MS, cleaned /usr/local/* (except etc)
out manually (well, all the clamav files, including the
/usr/local/share/clamav directory (where updates live)), redid the
"make install", ran a freshclam... and now see more normal behaviour.
Since I run clamscan (not Mail::ClamAV) I needn't have bothered with
the ldconfig/forced rebuild of Mail::ClamAV, but who knows... somesay
I might change over to that, and by then will have forgotten every
little bit of the possible issues of not relinking to the correct lib
file:-).

Cheers
-- 
-- Glenn
email: glenn < dot > steen < at > gmail < dot > com
work: glenn < dot > steen < at > ap1 < dot > se