[Bug 691414] Re: clamav taking extremely long time to load database

[Imre Gergely]

On 12/21/2010 12:35 PM, Török Edwin wrote:

> You need to test with an older bytecode.cvd, because the latest one has
> a workaround (0.96.3 loads it fast now because it doesn't load the new
> bytecodes at all).
>
> Attached bytecode.cvd version 103 for you to test.
> ClamAV 0.96.3 takes 2.5 minutes to load it on my box (probably much more
> on slower ones):
> $ time clamscan --quiet -dbytecode.cvd /dev/null
>
> real    2m32.461s
> user    2m32.287s
> sys     0m0.117s
>
> ClamAV 0.96.4 and 0.96.5 takes less than a second to load same CVD.
> $ time clamscan --quiet -dbytecode.cvd /dev/null
>
> real    0m0.591s
> user    0m0.500s
> sys     0m0.040s

Indeed. I've tested it like you suggested, with your bytecode.cvd, and I 
did get the long startup times on both Maverick and Lucid, two separate 
machines:

gimre at ximi:~/Desktop$ time clamscan --quiet -dbytecode.cvd /tmp
LibClamAV Warning: 
***********************************************************
LibClamAV Warning: ***  This version of the ClamAV engine is outdated. 
    ***
LibClamAV Warning: *** DON'T PANIC! Read 
http://www.clamav.net/support/faq ***
LibClamAV Warning: 
***********************************************************

real    3m20.331s
user    3m20.080s
sys     0m0.190s

After upgrading to -proposed, the problem got resolved:

gimre at ximi:~/Desktop$ time clamscan --quiet -dbytecode.cvd /tmp

real    0m0.578s
user    0m0.550s
sys     0m0.020s

gimre at ximi:~/Desktop$ apt-cache policy clamav
clamav:
   Installed: 0.96.5+dfsg-1ubuntu1.10.10.1
   Candidate: 0.96.5+dfsg-1ubuntu1.10.10.1
   Version table:
  *** 0.96.5+dfsg-1ubuntu1.10.10.1 0
         500 http://ro.archive.ubuntu.com/ubuntu/ maverick-proposed/main 
amd64 Packages
         100 /var/lib/dpkg/status
      0.96.3+dfsg-2ubuntu1.2 0
         500 http://ro.archive.ubuntu.com/ubuntu/ maverick-updates/main 
amd64 Packages
         500 http://security.ubuntu.com/ubuntu/ maverick-security/main 
amd64 Packages
      0.96.3+dfsg-2ubuntu1 0
         500 http://ro.archive.ubuntu.com/ubuntu/ maverick/main amd64 
Packages

And on Lucid:

gimre at voy:~/Desktop$ time clamscan --quiet -dbytecode.cvd /tmp

real    0m0.561s
user    0m0.540s
sys     0m0.020s

gimre at voy:~/Desktop$ apt-cache policy clamav
clamav:
   Installed: 0.96.5+dfsg-1ubuntu1.10.04.1
   Candidate: 0.96.5+dfsg-1ubuntu1.10.04.1
   Version table:
  *** 0.96.5+dfsg-1ubuntu1.10.04.1 0
         500 http://archive.ubuntu.com/ubuntu/ lucid-proposed/main Packages
         100 /var/lib/dpkg/status
      0.96.3+dfsg-2ubuntu1.0.10.04.2 0
         500 http://ro.archive.ubuntu.com/ubuntu/ lucid-updates/main 
Packages
         500 http://ro.archive.ubuntu.com/ubuntu/ lucid-security/main 
Packages
      0.96+dfsg-2ubuntu1 0
         500 http://ro.archive.ubuntu.com/ubuntu/ lucid/main Packages

Confirmed that -proposed packages fix the bug.

-- 
Imre Gergely
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https://bugs.launchpad.net/bugs/691414

Title:
  clamav taking extremely long time to load database