Hi, On Tue, Jun 10, 2014 at 03:43:12PM -0400, Michael H. Warfield wrote: > Date: Tue, 10 Jun 2014 15:43:12 -0400 > From: "Michael H. Warfield" <m...@wittsend.com> > To: LXC users mailing-list <lxc-users@lists.linuxcontainers.org> > Subject: Re: [lxc-users] systemd and logging in containers > X-Mailer: Evolution 3.10.4 (3.10.4-2.fc20) > > On Tue, 2014-06-10 at 21:19 +0200, István Király wrote: > > Hi list, .. > > > Fedora 20 host and containers. > > > Some programms are logging normal, apache, mariadb, .. > > > But some others have no log at all, for example maillog is 0 in all my > > containers, but they have postfix / dovecot running. > > > I experimented a little today, with a custom script echoing messages > > to standard output, and created a systemd unit file for it. .. > > > When I run this script as service on the host, I get the messages from > > systemctl status test.service. > > > When I run this script from a container, the messages are not in > > systemctl status, and I can't find them. > > > Checked if maybe packages are missing, but all seems to be okay, .. > > > .. anyone have any ideas? > > Yes. > > Several revs back on systemd, the systemd-journald.service was horribly > broken and, at random, eating CPU time for lunch, particularly in > containers. That turned out to be a bug involving (iirc) logging > objects and object id's and user logs with conflicting ids. > > During this period of time, I coded the Fedora template to disable and > mask systemd-journald.service. They have since fixed this bug and I've > reenabled it in the template, but containers built prior to this will > have the systemd-journal service disabled and masked.
I'm surprised it actually worked -- what systemd version was that? I don't think you can 'disable' (stop) journal in new-ish systemd (i.e. >=210) because it is a core module, so the best you can do is to set Storage=none in journald.conf. HTH, -- Leonid Isaev GPG fingerprints: DA92 034D B4A8 EC51 7EA6 20DF 9291 EE8A 043C B8C4 C0DF 20D0 C075 C3F1 E1BE 775A A7AE F6CB 164B 5A6D
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