On Nov 12, 2009, at 3:25 PM, Michael Scheidell wrote:

> 
> observations include:
> with build in CONTSCAN, amavisd loads the code once, and probaly caches 
> the unix socket.
> with using clamdscan (tcp/remote) as the primary scanner, nothing is 
> cached, clamdscan needs to be called (the binary) for each message, 
> hence the question/request to support the TCP mode.
> 
> if clamd supported both TCP and unix sockets on the same server, and you 
> had two servers, amavisd could use unix sockets for primary, and then 
> maybe tcp for backup scanner.
> 
> has anyone else given this a try?
> 
> your thoughts?

AFAIK clamd network TCP mode works only locally (so you would need NFS or 
something similar for checking files). That would also means that you would 
have NFS mounted amavis temp dir... 

I have tried this with version 0.94 but I haven't really checked later 
versions, so network-ed clamd would be nice thing... 

I have also ran into issues where clamd was failing and clamscan took too much 
cycles to process single email. What we do now, is check whether clamd is 
running and reverse check before upgrading clamd db. And so far, no problems 
with that.

LP, Jernej
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