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/var/log/journal folder bigger size in Ubuntu, how to remove?

Ubuntu journal

In Ubuntu, /var/log/journal folder bigger size, I wonder whether I can delete them? The system is running low on space.

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Best Answer

1. Check size

du -sh /var/log/journal/

4.0G /var/log/journal/20211021102706303852921744565375

or
journalctl --disk-usage

Archived and active journals take up 3.9G on disk.

2. Clean space

sudo journalctl --vacuum-size=500M

or based on time:

sudo journalctl --vacuum-time=10d

3. Set the parameter

sudo nano /etc/systemd/journald.conf

SystemMaxUse=500M

If Nano is not present on your computer, you can install it with the following commands:

To install Nano on Ubuntu and Debian run: sudo apt install nano
To install it on CentOS and Fedora, run this: sudo yum install nano.

You can restart the service like so if need. $ sudo systemctl restart systemd-journald.service

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