[Lxc-users] init keeps files opened

[Serge Hallyn]

Funky.

Can you turn off apache and mysqld (switch the startup jobs to not run)
and see if the container behaves better?

Anything at all in host's syslog?

What do ls -l /dev/ptmx /dev/pts show on both the host and in
the container?

Quoting Papp Tamas (tompos at martos.bme.hu):
> Does somebody have any idea about this?
> 
> Thanks,
> tamas
> 
> On 03/28/2012 02:25 PM, Papp Tamas wrote:
> > On 03/28/2012 11:26 AM, Papp Tamas wrote:
> >> hi!
> >>
> >> I have a container, which init process uses 100% CPU.
> >>
> >> If I create a strace dump from it:
> >>
> >> open("/dev/ptmx", O_RDWR|O_NOCTTY)      = -1 EMFILE (Too many open 
> >> files)
> >> close(1022)                             = 0
> >> close(1023)                             = 0
> >> pipe([1022, 1023])                      = 0
> >>
> >>
> >> I saw it before. However other container works fine beside it.
> >> Is this a bug, or I did something wrong?
> >>
> >> I created the container with the command 'lxc-create -n log0 -t 
> >> ubuntu -- -r precise' .
> >>
> >> fs.file-nr = 3328    0    805183
> >>
> >>
> >> In the container there is a realy minimalized installation, with a 
> >> mysql instance, apache etc, nothing in production and not in use.
> >>
> >>     1 ?        Rs   7165:40 /sbin/init
> >>   121 ?        S      0:00 upstart-udev-bridge --daemon
> >>   126 ?        S      0:00 upstart-socket-bridge --daemon
> >>   127 ?        Ss     0:00 /sbin/udevd --daemon
> >> 20464 ?        S      0:00  \_ /sbin/udevd --daemon
> >> 20465 ?        S      0:00  \_ /sbin/udevd --daemon
> >>   134 ?        Sl     0:01 rsyslogd -c5
> >>   170 ?        Ss     0:00 /usr/sbin/sshd -D
> >> 20862 ?        Ss     0:00  \_ sshd: tompos [priv]
> >> 20874 ?        S      0:00      \_ sshd: tompos at pts/1
> >> 20875 pts/1    Ss     0:00          \_ -bash
> >> 20885 pts/1    S      0:00              \_ sudo -i
> >> 20886 pts/1    S      0:00                  \_ -bash
> >> 20898 pts/1    R+     0:00                      \_ ps axf
> >>   198 lxc/tty4 Ss+    0:00 /sbin/getty -8 38400 tty4
> >>   201 lxc/tty2 Ss+    0:00 /sbin/getty -8 38400 tty2
> >>   203 lxc/tty3 Ss+    0:00 /sbin/getty -8 38400 tty3
> >>   215 ?        Ss     0:00 cron
> >>   268 ?        Ss     0:16 /usr/sbin/apache2 -k start
> >> 19118 ?        S      0:00  \_ /usr/sbin/apache2 -k start
> >> 19119 ?        S      0:00  \_ /usr/sbin/apache2 -k start
> >> 19120 ?        S      0:00  \_ /usr/sbin/apache2 -k start
> >> 19121 ?        S      0:00  \_ /usr/sbin/apache2 -k start
> >> 19122 ?        S      0:00  \_ /usr/sbin/apache2 -k start
> >>   283 lxc/console Ss+   0:00 /sbin/getty -8 38400 console
> >>   285 lxc/tty1 Ss+    0:00 /sbin/getty -8 38400 tty1
> >> 17930 ?        Zs     0:00 [mysqld] <defunct>
> >> 20859 ?        Z      0:00 [sshd] <defunct>
> >> 20861 ?        Z      0:00 [sshd] <defunct>
> >>
> >
> > It looks, first time I didn't send this mail properly.
> >
> > tamas
> 
> 
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