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Remember to not to forget clearing your journal
(lemmy.world)
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this post was submitted on 01 Aug 2024
665 points (98.5% liked)
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Cleanup
Check current disk usage:
sudo journalctl --disk-usageUse rotate function:
sudo journalctl --rotateOr
Remove all logs and keep the last 2 days:
sudo journalctl --vacuum-time=2daysOr
Remove all logs and only keep the last 100MB:
sudo journalctl --vacuum-size=100MHow to read logs:
Follow specific log for a service:
sudo journalctl -fu SERVICEShow extended log info and print the last lines of a service:
sudo journalctl -xeu SERVICEI mean yeah -fu stands for "follow unit" but its also a nice coincidence when it comes to debugging that particular service.
ππ
this implies i keep an operating system installed for that long
something something nix?
hmmmmmm........
seems like someone doesn't like systemd :)
I don't have any feelings towards particular init systems.
Just curious, what distro do you use that systemd is not the default? (I at least you didn't change it after the fact if you don't have any feelings (towards unit systems ;) ) )
Slackware
Badass! Thanks!
Thank you for this, wise sage.
Your wisdom will be passed down the family line for generations about managing machine logs.
Glad to help your family, share this wisdom with friends too βπ»π
Yeah, if I had dependents they'd gather round the campfire chanting these mystical runes in the husk of our fallen society
@RemindMe@programming.dev 6 months
@ategon@programming.dev is the remindme bot offline?
Its semi broken currently and also functions on a whitelist with this community not being on the whitelist
Ok, thanks!
If you use OpenRC you can just delete a couple files
Actually something I never dug into. But does logrotate no longer work? I have a bunch of disk space these days so I would not notice large log files
If logrotate doesn't work, than use this as a cronjob via
sudo crontab -ePut this line at the end of the file:0 0 * * * journalctl --vacuum-size=1G >/dev/null 2>&1Everyday the logs will be trimmed to 1GB. Usually the logs are trimmed automatically at 4GB, but sometimes this does not work
If we're using systemd already, why not a timer?
Cron is better known than a systemd timer, but you can provide an example for the timer π
Really, the correct way would be to set the limit you want for journald. Put this into
/etc/systemd/journald.conf.d/00-journal-size.conf:Or something like this using a timer:
systemd-run --timer-property=OnCalender=daily $COMMANDThanks for this addition βΊοΈ
Why isn't it configured like that by default?
It is. The defaults are a little bit more lenient, but it shouldn't gobble up 80 GB of storage.
Good question, it may depend on the distro afaik