this post was submitted on 01 Aug 2024
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Remember to not to forget clearing your journal (lemmy.world)
submitted 3 months ago by [email protected] to c/[email protected]
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[–] [email protected] 25 points 3 months ago* (last edited 3 months ago) (11 children)

Fucking blows my mind that journald broke what is essentially the default behavior of every distro's use of logrotate and no one bats an eye.

[–] [email protected] 25 points 3 months ago* (last edited 3 months ago) (2 children)

I'm not sure if you're joking or not, but the behavior of journald is fairly dynamic and can be configured to an obnoxious degree, including compression and sealing.

By default, the size limit is 4GB:

SystemMaxUse= and RuntimeMaxUse= control how much disk space the journal may use up at most. SystemKeepFree= and RuntimeKeepFree= control how much disk space systemd-journald shall leave free for other uses. systemd-journald will respect both limits and use the smaller of the two values.

The first pair defaults to 10% and the second to 15% of the size of the respective file system, but each value is capped to 4G.

[–] [email protected] 13 points 3 months ago

If anything I tend to have the opposite problem: whoops I forgot to set up logrotate for this log file I set up 6 months ago and now my disk is completely full. Never happens for stuff that goes to journald.

[–] [email protected] 4 points 3 months ago* (last edited 3 months ago) (1 children)

It can be, but the defaults are freaking stupid and often do not work.

[–] [email protected] 18 points 3 months ago (1 children)

Aren’t the defaults set by your distro?

[–] [email protected] 2 points 3 months ago

AAfaict Debian uses the upstream defaults.

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