[Lxc-users] init keeps files opened

[Papp Tamas]

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