On 06/08/2020 09:15 PM, mailingl...@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-boun...@openvz.org <users-boun...@openvz.org> Namens Konstantin
Khorenko
Verzonden: maandag 8 juni 2020 17:45
Aan: OpenVZ users <users@openvz.org>
Onderwerp: Re: [Users] openvz 7> centos 8 container

On 06/08/2020 03:31 PM, mailingl...@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-boun...@openvz.org <users-boun...@openvz.org> *Namens
*mailingl...@tikklik.nl
*Verzonden:* maandag 8 juni 2020 14:17
*Aan:* 'OpenVZ users' <users@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





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