[lxc-users] LXCFS install issue

[Rajasekar Darapuram]

When I try to restart restart the containers..on lxc-start the lxcfs is
getting killed again...Do I need to reboot the machine?

So here are the steps I did

1. Stopped all containers
2. ran fusermount -uz /var/lib/lxcfs (as service lxcfs start was failing)
3. Start lxcfs..checked the status and it is running
4. Start a container
5. Check lxcfs status and it is in stop/waitting

Please let me know.

Thanks


On Fri, Apr 24, 2015 at 7:38 PM, Stéphane Graber <stgraber at ubuntu.com>
wrote:

> On Fri, Apr 24, 2015 at 07:30:00PM -0500, Rajasekar Darapuram wrote:
> > Hi
> > When I add ppa:ubuntu-lxc/daily repo and do an apt-get install lxcfs (and
> > lxc, cgmanager) LXCFS is working fine inside containers. But the apt-get
> > downloads the latest deb everyday..TO be consistent for all developers I
> > downloaded the debs and wrote a script to upgrade LXC 1.10 to LXC 1.1.
> and
> > LXCFS.   It installs the new versions of LXC and LXCFS. I was able to
> > create containers and start the,. However when I attach to the container
> > and run ps command I get this error (if I stop lxcfs service, then ps is
> > working fine inside the containers)
> >
> > root at eqx03-flash04:/etc# lxc-ls -f
> > NAME                            STATE    IPV4  IPV6  GROUPS  AUTOSTART
> > ----------------------------------------------------------------------
> > eqx03-vnode18 <http://eqx03-vnode18.robinsystems.com> STOPPED  -     -
> > -       NO
> > eqx03-vnode52 <http://eqx03-vnode52.robinsystems.com> STOPPED  -     -
> > -       NO
> > root at eqx03-flash04:/etc# lxc-start -n eqx03-vnode18
> > <http://eqx03-vnode18.robinsystems.com>
> > root at eqx03-flash04:/etc# lxc-ls -f
> > NAME                            STATE    IPV4         IPV6  GROUPS
> >  AUTOSTART
> >
> -----------------------------------------------------------------------------
> > eqx03-vnode18 <http://eqx03-vnode18.robinsystems.com>  RUNNING
> 10.9.240.18
> >  -     -       NO
> > eqx03-vnode52 <http://eqx03-vnode52.robinsystems.com>  STOPPED  -
> >  -     -       NO
> > root at eqx03-flash04:/etc# service lxcfs status
> > lxcfs start/running, process 22159
> >
> > root at eqx03-flash04:/etc# ls /var/lib/lxcfs
> > cgroup  proc
> > root at eqx03-flash04:/etc#
> > root at eqx03-flash04:/etc# lxc-attach -n eqx03-vnode18
> > <http://eqx03-vnode18.robinsystems.com>
> > *root at eqx03-vnode18:/etc# ps*
> > *Error: /proc must be mounted*
> > *  To mount /proc at boot you need an /etc/fstab line like:*
> > *      proc   /proc   proc    defaults*
> > *  In the meantime, run "mount proc /proc -t proc"*
> >
> >
> > Also sometimes lxcfs service is getting killed and when I do an ls on
> > /var/lib/lxcfs, I get this error
> > transport endpoint is not connected
> >
> > Please let me know.
> >
> > Thanks
> > Raj
>
> It's unfortunately a known issue with lxcfs (and one that is based on a
> kernel limitation so unlikely to be resolved very soon).
>
> Restarting lxcfs (by an update or a crash) causes any container using it
> to return empty files instead of the lxcfs files.
>
> The only fix for this issue is to restart all your containers whenever
> lxcfs is restarted.
>
> --
> Stéphane Graber
> Ubuntu developer
> http://www.ubuntu.com
>
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