[Users] openvz 7> centos 8 container

[Konstantin Khorenko]

On 06/08/2020 09:15 PM, mailinglist at tikklik.nl wrote:
> If 4096 is the default
> Then i dont get it why this error is there
>
> Its 'only' 597
>
> mount | wc -l
> 597

Most probably you have mount namespaces with more mounts inside.

>
>
> Best regards,
>
> Steffan
> -----Oorspronkelijk bericht-----
> Van: users-bounces at openvz.org <users-bounces at openvz.org> Namens Konstantin
> Khorenko
> Verzonden: maandag 8 juni 2020 17:45
> Aan: OpenVZ users <users at openvz.org>
> Onderwerp: Re: [Users] openvz 7> centos 8 container
>
> On 06/08/2020 03:31 PM, mailinglist at tikklik.nl wrote:
>> I now see on my node:
>>
>> kernel: CT#402 reached the limit on mounts.
>
> You can increase the limit of mounts inside a Container via sysctl
> "fs.ve-mount-nr" (4096 by default).
>
> Warning: stopping of a Container with many mounts inside can take quite a
> long time.
> Say, if you have 200000 of mounts in a Container, Container stop may take
> ~10 minutes.
>
> --
> Best regards,
>
> Konstantin Khorenko,
> Virtuozzo Linux Kernel Team
>
>> So think that is the problem.
>>
>> I see a old toppic onlin
> https://forum.openvz.org/index.php?t=rview&th=12902&goto=52002
>>
>> Any idee if that is the solution that is needed today?
>>
>>
>>
>>
>>
>>
>>
>> *Van:* users-bounces at openvz.org <users-bounces at openvz.org> *Namens
> *mailinglist at tikklik.nl
>> *Verzonden:* maandag 8 juni 2020 14:17
>> *Aan:* 'OpenVZ users' <users at openvz.org>
>> *Onderwerp:* [Users] openvz 7> centos 8 container
>>
>>
>>
>>     Hello,
>>
>>
>>
>>     If installed a centos 8 op-envz container
>>
>>     It was working, but after migration my data from an older container im
> keep getting errors like this:
>>
>>
>>
>>
>>
>>     php71-php-fpm.service: Failed to set up mount namespacing: Cannot
> allocate memory
>>
>>     php71-php-fpm.service: Failed at step NAMESPACE spawning
> /opt/remi/php71/root/usr/sbin/php-fpm: Cannot allocate memory
>>
>>
>>
>>     php73-php-fpm.service: Failed to set up mount namespacing: Cannot
> allocate memory
>>
>>     php73-php-fpm.service: Failed at step NAMESPACE spawning
> /opt/remi/php73/root/usr/sbin/php-fpm: Cannot allocate memory
>>
>>
>>
>>
>>
>>     httpd.service: Failed to set up mount namespacing: Cannot allocate
> memory
>>
>>     httpd.service: Failed at step NAMESPACE spawning /usr/sbin/httpd:
> Cannot allocate memory
>>
>>
>>
>>
>>
>>     cat /proc/user_beancounters
>>
>>     Version: 2.5
>>
>>     resource                     held              maxheld
> barrier                limit              failcnt
>>
>>     kmemsize                 92078080            121937920
> 9223372036854775807  9223372036854775807                    0
>>
>>     lockedpages                     0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>     privvmpages                 52155                75857
> 9223372036854775807  9223372036854775807                    0
>>
>>     shmpages                      659                 2636
> 9223372036854775807  9223372036854775807                    0
>>
>>     dummy                           0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>     numproc                        39                   39
> 4194304              4194304                    0
>>
>>     physpages                   97697               111964
> 9223372036854775807  9223372036854775807                    0
>>
>>     vmguarpages                     0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>     oomguarpages                97697               111964
> 0                    0                    0
>>
>>     numtcpsock                      0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>     numflock                        2                    5
> 9223372036854775807  9223372036854775807                    0
>>
>>     numpty                          0                    1
> 9223372036854775807  9223372036854775807                    0
>>
>>     numsiginfo                      0                   57
> 9223372036854775807  9223372036854775807                    0
>>
>>     tcpsndbuf                       0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>     tcprcvbuf                       0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>     othersockbuf                    0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>     dgramrcvbuf                     0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>     numothersock                    0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>     dcachesize               51408896             72798208
> 9223372036854775807  9223372036854775807                    0
>>
>>     numfile                       711                  995
> 9223372036854775807  9223372036854775807                    0
>>
>>     dummy                           0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>     dummy                           0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>     dummy                           0                    0
> 9223372036854775807  9223372036854775807                    0
>>
>>         numiptent                       8                   16
> 9223372036854775807  9223372036854775807                    0
>>
>>
>>
>>
>>
>>     uname -r      3.10.0-1062.12.1.vz7.131.10
>>
>>
>>
>>     any idees what went wrong and how to repair?
>>
>>
>>
>>     Thanxs
>>
>>
>>     Steffan
>>
>>
>>
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at openvz.org
>> https://lists.openvz.org/mailman/listinfo/users
>>
> _______________________________________________
> Users mailing list
> Users at openvz.org
> https://lists.openvz.org/mailman/listinfo/users
>
> _______________________________________________
> Users mailing list
> Users at openvz.org
> https://lists.openvz.org/mailman/listinfo/users
> .
>