How to Limit Journals Size

Check journal size

Bash

sudo journalctl --disk-usage

Shrink journal size

Bash

sudo journalctl --vacuum-size=500M

Reduce archived files and leave last 2

Bash

sudo journalctl --vacuum-files=2

Verify journal - if there are any corruptions

Bash

sudo journalctl --verify

On Ubuntu you can permanently limit here

Bash

sudo nano /etc/systemd/journald.conf

Text Only

SystemMaxUse=3G
SystemKeepFree=600M

Bash

sudo service systemd-journald restart