Problem description
In scenarios where Cloud Cache/PBS root directory is 100 percent utilized resulting in service halt.
We can free up some space to ensure PBS/CloudCache is up and running.
These steps could be helpful when it would take some time to increase disk space causing delay in operation.
This is a temporary solution, while adding space would be necessary in a longer run.
Resolution
Systemd has its own logging system called the journal, and the log files are stored in /var/log/journal. As long as we don’t need the logs for any debugging, it’s safe to delete the older ones.
Navigate to the following path:
/var/log/journalCheck how much space is being utilized by these journal logs by typing the following command:
du -shClear the journal logs by choosing one of following commands:
Delete journal logs older than X days:
sudo journalctl --vacuum-time=2daysDelete log files until the disk space taken falls below the specified size:
sudo journalctl --vacuum-size=100MDelete old logs and limit file number to X:
sudo journalctl --vacuum-files=5
You can also edit the configuration file to limit the journal log disk usage (100 MB for example).
Navigate to the path /etc/systemd/journald.conf
sudo vi /etc/systemd/journald.confAdd SystemMaxUse=50M to the end of the configuration file:
SystemMaxUse=50MWrite out and close the file:
:wq
Restart the journald service:
systemctl restart systemd-journald