Hello everyone,
We are using ClamAV and have noticed a high increase of disk usage while
running clamonacc real time scan on our server.
Checking the current disk usage with "df -h" it shows:
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 99G 98G 0 100% /
However, checking with "du -hs" it unfortunately does not show where all the
space is being used:
49G var2.5G usr1.9G tmp535M opt79M boot
We then restarted the "clamonacc" service, and after that it freed up the space
that was not being shown with "du -hs". And after a while it happens again.
These are the clamd configuration that we are using to scan the whole system
(/):
User root
FollowDirectorySymlinks true
FollowFileSymlinks true
OnAccessMountPath /
OnAccessExtraScanning yes
OnAccessExcludeRootUID yes
OnAccessExcludeUname clamav
OnAccessExcludeUname clamdVirusEvent /opt/clamav-response
In the clamonacc log file we only receive the following timeouts however it
still works:
ERROR: ClamClient: Connection to clamd failed, Couldn't connect to server.
ClamClient: Connection to clamd re-established.
We are running ClamAV on the following server:
- OS: Debian 11 (bullseye)
- ClamAV version: 0.103.7+dfsg-0+deb11u1
Below is our system configuration for "clamonacc" process:
/etc/systemd/system/clamonacc.service
[Unit]
Description=ClamAV On Access Scanner
Requires=clamav-daemon.service
After=clamav-daemon.service syslog.target network.target
[Service]
Type=simple
User=root
ExecStartPre=/bin/bash -c "while [ ! -S /var/run/clamav/clamd.ctl ]; do sleep
1; done"
ExecStart=/usr/sbin/clamonacc -F --config-file=/etc/clamav/clamd.conf
--log=/var/log/clamav/clamonacc.log
Restart=on-failure
RestartSec=120s
[Install]
WantedBy=multi-user.target
Does anyone have an idea what we can do to scan the whole filesystem without
having these issues?
Thanks in advance!
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