How to stop clamd

michelandre · May 8, 2021, 9:08pm

Hi all,

A real newbee question !

On reboot, clamd runs for about 2-3 minutes and takes a lot pf CPU time.

I am on a LOCAL VM testing Jitsi and I have to reboot often.

How can I disable clamd until I finish debugging Jitsi ?

Thank you,

Michel-André

dnutan · May 8, 2021, 10:59pm

Do not recall if the service is listed and manageable from the Services section on the server-manger. From command line I guess it is:

systemctl stop clamd
systemctl disable clamd

michelandre · May 9, 2021, 9:52pm

Hi @dnutan,

Thank you for your reply.

# systemctl stop  clamd
Failed to stop clamd.service: Unit clamd.service not loaded.
#

At last, I found something: https://docs.iredmail.org/completely.disable.amavisd.clamav.spamassassin.html.

# systemctl disable --now clamd@amavisd
# 

# yum remove clamav clamav-lib
...
Résumé de la transaction
============================================================================================
Supprimer  2 Paquets (+7 Paquets en dépendance)

Taille d'installation : 12 M
...
Supprimé :
  clamav.x86_64 0:0.103.2-1.el7              clamav-lib.x86_64 0:0.103.2-1.el7

Dépendances supprimées :
  clamav-unofficial-sigs.noarch 0:7.2.4-1.el7
  clamav-update.x86_64 0:0.103.2-1.el7
  clamd.x86_64 0:0.103.2-1.el7
  nethserver-antivirus.noarch 0:1.5.1-1.ns7
  nethserver-clamscan.noarch 0:1.0.3-1.ns7.sdl
  nethserver-mail-filter.noarch 0:2.30.0-1.ns7
  nethserver-mail-quarantine.noarch 0:2.30.0-1.ns7

Terminé !
#

# reboot

No more clamd and now booting is much faster.

To re-install, just install back clamav and clamav-lib.

Michel-André

m.traeumner · May 10, 2021, 7:26am

Hi @michelandre,
Please use the following variant to mark a topic as solved:

stephdl · May 10, 2021, 12:51pm

clamd is used by nethserver-mail-filter, nethserver-clamscan, nethserver-squid … , when you update the database it takes a long time

michelandre · May 10, 2021, 1:47pm

Salut Stéphane,

Thank you for the clarification that it was the update that was the trouble and not a scan.

Instead of restoring the previous snapshot (for which clamd was not up to date), I should have let it go for the update, take a new snapshot, boot the new snapshot and it would not have updated again.

Michel-André

stephdl · May 10, 2021, 1:50pm

Bonjour michel-andré

Indeed, it is a pity, nightmare when I test something on my VM with nethserver-mail-filter, at boot time the VM is so slow, until I kill clamd

Something to know

michelandre · May 10, 2021, 2:48pm

Salut Stéphane.

Even with a new snapshot, clamd wants to update…

Michel-André

stephdl · May 10, 2021, 3:51pm

what version of clamd is runing : for rspamd, squid ???

michelandre · May 10, 2021, 3:58pm

# rpm -qa | grep rspamd
rspamd-2.5-156.x86_64

# rpm -qa | grep squid
#

# rpm -qa | grep  nethserver-squid
#

# rpm -qa | grep spamd
rspamd-2.5-156.x86_64

Thank you for your support.

Michel-André

stephdl · May 10, 2021, 4:00pm

systemctl disable clamd@rspamd.service
systemctl stop clamd@rspamd.service

michelandre · May 10, 2021, 5:11pm

# systemctl disable clamd@rspamd.service
#

# systemctl stop clamd@rspamd.service
#

After a reboot: from 25% to 78% CPU for clamd.

But if I do those commands right after the reboot, then clamd is no more in the picture.

So, your solution is working.

I’ll do like my teacher used to at my primary school: stick a little angel and a star beside you name on my list of “The Greatest”.

Michel-André