Persistent Log Storage

wilkinsaf

I am looking to have journald logs persist.
I understand that journald stores logs under /var/log/journal
However, I can see that /var/log/ is under volatile storage.

I understand that I should be logging to /data if I would like things to persist. Is there a configuration that ModalAI recommends to log service file output on VOXL?

wilkinsaf

I might end up having to specify specific log files to write to in my .service files per
https://www.freedesktop.org/software/systemd/man/systemd.exec.html#StandardOutput=

wilkinsaf

Was going to use syslog, but saw that the service file points to null. Was wondering if this is done on purpose?

wilkinsaf

Thinking an easier way here is to just change the symbolic link here

and then modify journald config file to make sure we do not fill up storage with logs

wilkinsaf

This seems to work, but not from bootup.
Usually, the systemd-journal-flush.service watches for /var/log/journal to be mounted and then switches logging over to that folder, but that does not seem to be happening.

Instead, I have to restart the systemd-journald.service to get it to log in the correct spot.

Maybe because it is a symbolic link, and that is why the service does not see it mounted.... going to try and test that theory

wilkinsaf

Yeah, all systemd-journal-flush.service is doing is running journalctl --flush which is not doing anything when run manually