[Clamav-users] Problems with clamd

[Doug Hardie]

I am trying to use clamav to scan mail on a prduction mail server that 
has fairly high volume of mail and quite a large volume of viruses 
being receivied.  The only version of clamd I can run for any duration 
is clamav-devel-20040209.  That version runs for 4 to 5 days on my 
production mail server before dying.   Everything since then can't last 
over an hour.  I am trying clamav-devel-20040304 right now and it has 
managed to last an hour twice and 44 minutes once.  What happens is 
that clamd runs using less than 3% of the cpu until it nears the end.  
Then it takes over all the available cpu running idle to zero.  It 
continues to function this way for a couple minutes and then quits 
responding at all to clamav-milter.  Then it goes away quietly.  The 
only messages associated with it are notes from sendmail that it is 
unable to malloc more memory.  I have submitted debug logs etc. but 
heard nothing back.

One possibility is that this is a thread issue.  Perhaps the 
clamav.conf settings are not optimal for this volume.  However, I don't 
see anyway to determine the thread usage.  If it used processes the 
standard unix tools would let me see what is going on.  I don't see 
anything similar for threads.  The appropriate entries are:

StreamSaveToDisk
StreamMaxLength 5M
MaxThreads 200
#ThreadTimeout 500
I just uncommented the thread timeout the last time I restarted clamd a 
couple minutes ago so I don't know what effect that will have.

Running on FreeBSD 4.6 with sendmail
clamd / ClamAV version devel-20040304, clamav-milter version 0.67j
I really don't want to have to go back to the old version as the volume 
of encrypted zip files is quite large.



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