[systemd-devel] journal: How to limit the file size of runtime system.journal

[WANG Chao]

On 12/13/13 at 06:42am, Zbigniew Jędrzejewski-Szmek wrote:
> On Fri, Dec 13, 2013 at 01:33:17PM +0800, WANG Chao wrote:
> > Hi,
> > 
> > In kdump environment, memory resource is quite limited. I find that the
> > runtime journal file (/run/log/journal/$id/system.journal) is 4 MB and I
> > think that is too much for a initramfs context.
> > 
> > After tuning both RuntimeMaxUse=1% or RuntimeMaxFileSiz=100K, I find
> > system.journal is still 4 MB in size. So here comes my questions:
> > 
> > 1. Did miss use of these two config options? Because regarding the
> > journald.conf(5), it seems I was totally doing it right.
> 4MB is the minimum. Those settings are ignored if you set anything
> lower.

Is there any particular reason? I think thresold for runtime journal
size can lower much because in initramfs it's not supposed to have much
logs.

Thanks
Chao