[systemd-devel] How to make journald increase logs storage capacity?

[Mantas Mikulėnas]

No, the cap is applied to the described _default_ values only, not to the
ones you configure.

Journal limits are additive; that is, logs are only kept as long as they
satisfy *all* limits, both time and space.

So if you want to keep a large amount of logs, the first thing to do is
raise SystemMaxUse=.

Jan 20 20:53:44 radius systemd-journald[11847]: System journal
(/var/log/journal/09c69409749a4…) is 4.0G, max 16.0G, 11.9G free.

On Sat, Jan 20, 2018, 20:12 Jameson Graef Rollins <
jrollins at finestructure.net> wrote:

> On Sat, Jan 20 2018, 4xy <garbagefenix at gmail.com> wrote:
> > I have limit in 4Gb for journald regardless of the settings I've made. I
> > see this line in the manual
> >
> > |$ sudo systemctl status systemd-journald ... jan 20 15:44:26 host
> > systemd-journald[1218]: System journal (/var/log/journal/) is 4.5G, max
> > 4.0G, 0B free. jan 20 15:44:26 host systemd-journald[1218]: Journal
> started|
> >
> > I see this line in the manual.
> >
> >> 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.
> >
> > I have about 1Gb logs per day. I would like to have ability to keep them
> > about 3 months.
> >
> >
> https://stackoverflow.com/questions/48358430/how-to-make-journald-increase-logs-storage-capacity
>
> I'm very interested in the answer to this question.  I did not realize
> there was a hard limit on the amount of logs that journald can support.
> I have a project where we need to indefinitely store logs being produced
> at a rate of many Mb per day.  A 4Gb limit would definitely be
> problematic.
>
> Is there actually a hard limit?  Why?  Can it be circumvented?
>
> Thank you very much for the information.
>
> jamie.
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-- 

Mantas Mikulėnas <grawity at gmail.com>
Sent from my phone
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