[clamav-users] with main.cvd clamscan dead slow

[Reindl Harald]

Am 21.12.2016 um 14:38 schrieb Selcuk Yazar:
> Dear Arnaud
>
> in redhat El 6 version thereis no clamdscan command

this is simply not true - clamav is from the EPEL repo and here you go

https://koji.fedoraproject.org/koji/buildinfo?buildID=772565

the package "clamd" contains /usr/bin/clamdscan und /usr/sbin/clamd 
which is used by clamdscan

> when a new mail
> arrived at postfix server, it calls amavisd and spamassasin then clamscan
> running for emails.

that is a really crazy and horrible setup because it means you fire for 
each new message a full clamscan process with all it's init and memory 
overhead - the never can scale - OK that it should not take some minutes 
is a different story but virtually nobody has a mailserver not using 
clamd be it with clamdscan or a milter connecting to clamd

>  can it (slow scan) be depend to internet connection ??

no

> normally we are managing 60K users with clam with no problem but this
> morning we have. i think it causes database files
>
> On Wed, Dec 21, 2016 at 4:28 PM, Arnaud Jacques / SecuriteInfo.com <
> webmaster at securiteinfo.com> wrote:
>
>> Hello Selçuk,
>>
>>> when i try to run clamscan for single file on tmp folder it takes 12
>>> minutes !!!
>>
>> Please use clamdscan.
>> How many time it takes to scan the same file ?
>>
>> --
>> Best regards,
>>
>> Arnaud Jacques
>> SecuriteInfo.com