[cvsnt] Latest on Virus Scan?

Mon Jun 30 20:17:24 BST 2003

The test results are in. Here is a summery:

Test Setup:
	Server: 1.5G PIII running Windows 2003 server 
              CVSNT 2.0.5
              McAfee VirusScan v4.5.1 SP1 enabled

      Client: various but typically 
              Windows XP or Windows 2000
              CVSNT 2.0.5
              McAfee VirusScan v4.5.1 SP1 (one machine had this disabled)
              Perl 5.6.1

The Test:
  A perl script that repeated the following over and over:
    o add one line to a file (the date and time) 
    o commit that change 
    o update in a separate directory 
    o compare the files 

If anything at all went wrong, the script would stop right there and display
the error.
I ran 27 instances of the test spread over 5 machines over the weekend.

Results:
   o Out of 369,371 total cycles, 17 operations failed and 2 of those did
not involve CVS. 
     So, that is a cvs failure rate of 0.004%. 
   o Of the 17 failed operations, all of them worked on the next try. 
   o In all of this, there was no data loss or corruption.

I call that good news. 

Also interesting to note:

    o All 15 cvs failures were due to share violations when 
      trying to rename a file. Sounds to me like some other 
      program had the file open. Probably the AV software. 
    o 8 of the 15 cvs failures were server side and 7 were client side.
    o 10 of the 15 cvs failures occurred near midnight: 1 just before and 9
just after.  
    o All 8 of the server side failures were near midnight. 
    o Both of my machines were running 12 tests each.  
        o Machine A had 5 failures to machine B's 9. 
        o Machine A was not running AV. B was running AV.  
        o Only one of the 5 failures on A were client side.  
        o On B, 6 of the 9 failures were client side.

If any one is interested, I can share more details.
Thanks,
__________________________________
Reed Lawson
IGT Firmware Engineering
(775) 448-0755

> -----Original Message-----
> From: Lawson.Reed 
> Sent: Friday, June 27, 2003 9:42 AM
> To: 'bo.berglund at telia.com'; cvsnt at cvsnt.org cvsnt downloads at march-hare.com @CVSNT on Twitter CVSNT on Facebook
> Subject: RE: [cvsnt] Latest on Virus Scan?
> 
> 
> Thanks Bo, I was afraid of that. So, here is what I'm
> going to do: I'm going to design a rebustness test
> in perl that commits from one directory and updates to
> another on the client. Diff the files and report
> any errors. again and again.... I'll start that on
> several client machines and let the server run 
> McAfee. If there are bugs, they should come
> screaming out. I'll report back soon.
> 
> It's stupid to run AV on the sever, but again
> it's not my call. We have to live with the 
> drawbacks to enjoy the benefits of our 
> paranoid IS department :-)
> 
> __________________________________
> Reed Lawson
> IGT Firmware Engineering
> (775) 448-0755
> 
> > -----Original Message-----
> > From: Bo Berglund [mailto:bo.berglund at telia.com]
> > Sent: Thursday, June 26, 2003 10:54 PM
> > To: cvsnt at cvsnt.org cvsnt downloads at march-hare.com @CVSNT on Twitter CVSNT on Facebook
> > Subject: Re: [cvsnt] Latest on Virus Scan?
> > 
> > 
> > On Thu, 26 Jun 2003 18:12:43 -0700, "Lawson.Reed"
> > <Reed.Lawson at IGT.com> wrote:
> > 
> > >One thing I need an answer on though is this:
> > >--------------------------------------------------------
> > >==> Is it just Norton, or does this problem occur with
> > >    McAfee too? <==
> > >-------------------------------------------------------
> > >Because if McAfee will work, my problem is solved.
> > >I fear that my IS department WILL want to run AV on
> > >the CVS directory because that is where most of the
> > >activity will be.
> > 
> > I think that from reading the past posts on this issue Norton
> > generally is better than McAfee. Most reports seem to come 
> from McAfee
> > users if I remember correctly...
> > 
> > 
> > 
> > /Bo
> > (Bo Berglund, developer in Sweden)
> > _______________________________________________
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> > http://www.cvsnt.org/cgi-bin/mailman/listinfo/cvsnt https://www.march-hare.com/cvspro/en.asp#downcvs
> > 
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