Can I delete files in /var/log/journal ?
/var/log/journal/ are kept the log files created by the journal service (systemd). Yes, the files from /var/log/journal directory can be removed.
1. If /var/log/journal log file using more space like 3.5G etc..
We can verify it by running below command:
# journalctl --disk-usage
2. Note down the SystemMaxUse value, it could be hashed or having value like 3.5G
#cat /etc/systemd/journald.conf |grep -i SystemMaxUse
3. Before editing journald.conf file; take copy of it
#cp -rp /etc/systemd/journald.conf /etc/systemd/journald.conf_backup
4. Edit the file journald.conf using vi editor and change the value SystemMaxUse to 200 or 300MB
#cat /etc/systemd/journald.conf |grep -i SystemMaxUse
SystemMaxUse=300M
5. Restart the systemd-journald service to make the changes effective done in /etc/systemd/journald.conf
#systemctl restart systemd-journald
Or
If you do not want to restart the systemd-journald service then use below command :
#journalctl –vacuum-size=300M
Thanks,
Kiraan B Jadhav
