[clamav-users] clamscan information

[Matus UHLAR - fantomas]

On 02.09.21 15:45, Karakanovski, Anton via clamav-users wrote:
>I am writing regarding more information related to usage of clamscan.
>First I want to share the problem/observation that we have - currently we
> try to make three scans at a same time (some kind of performance test
> using jmeter) but unfortunately only the first scan is successful and the
> rests are with code 2 instead of 0.

how much of memory do you have? clamscan can take ~1.5GB

>I found in clamAV documentation that clamscan is "one-time scanning" but
> couldn't understand much.  Also try find some information in the archive
> but actually with no result.
>Can you please explain what is the actual limitation for clamscan and what
> means "one-time scanning" - does it mean that only one scan engine could
> be initiated at a time or only one file could be scan?

it means that clamscan loads virus database, scans file/files and exits.
It can scan multiple files or directories, one after another and then it
exits.

for each clamscan run, it needs to load virus database again, which can be
most CPU expensive operation.

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Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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