Esmé de Wolf | 2 Jul 13:08 2012
Picon

RE: Ubuntu 12.04 issue

Hi Joe,

Of course, sorry for the incompleteness...

Kernel: 2.6.32-042stab053.5-el6-openvz (Debian distribution)

I've created the VPS with OpenVZ Web Panel 2.1, which I use for basically
most tasks. The problem does not occur when I use the 10.04 template. The
template is downloaded by OpenVZ Web Panel from the official repositories.

Here is de conf file:

ONBOOT="yes"
CPUUNITS="1000"
PRIVVMPAGES="262144:262144"
DISKSPACE="10485760:10485760"
QUOTATIME="0"
KMEMSIZE="14372700:14790164"
LOCKEDPAGES="256:256"
SHMPAGES="21504:21504"
NUMPROC="240:240"
PHYSPAGES="0:9223372036854775807"
VMGUARPAGES="33792:9223372036854775807"
OOMGUARPAGES="26112:9223372036854775807"
NUMTCPSOCK="360:360"
NUMFLOCK="188:206"
NUMPTY="16:16"
NUMSIGINFO="256:256"
TCPSNDBUF="1720320:2703360"
TCPRCVBUF="1720320:2703360"
(Continue reading)

Corin Langosch | 3 Jul 09:52 2012

ploop and mount options

Hi there,

Is there any way to specify mount options for the container's root 
filesystem in the container's config when using ploop?

So a normal options string like 
"noatime,data=writeback,journal_async_commit,barrier=0,errors=remount-ro".

Thanks for any hints :)

Corin
Antanas | 3 Jul 15:26 2012

Kernel bug or hardware problem?

Hello smart people, 

Kernel bug or hardware problem? What do you think?
Thank you.

-Antanas
_______________________________________________
Users mailing list
Users@...
https://openvz.org/mailman/listinfo/users
Corin Langosch | 3 Jul 16:16 2012

Re: ploop and mount options

Hi again,

just a small follow up on this:

Inside the the container I'm able to change the barrier mount option with:

"mount -o remount,barrier=0 /" or "mount -o remount,barrier=1 /"

But changing other options like "noatime" (mount -o remount,noatime /) 
fails with "mount: permission denied".

Now I wonder if this is intended or a bug? Why allow changing barrier 
and deny noatime option?

BTW: I still haven't found a way to specify mount options in the 
container's config :(

Corin

On 03.07.2012 at 09:52 +0200, Corin Langosch
<info@...> wrote:
> Hi there,
>
> Is there any way to specify mount options for the container's root 
> filesystem in the container's config when using ploop?
>
> So a normal options string like 
> "noatime,data=writeback,journal_async_commit,barrier=0,errors=remount-ro".
>
> Thanks for any hints :)
>
> Corin
> _______________________________________________
> Users mailing list
> Users@...
> https://openvz.org/mailman/listinfo/users
Rene C. | 4 Jul 11:16 2012

Re: occasional high loadavg without any noticeable cpu/memory/io load

Today I again had a VE that went up to a relative high load for no apparent reason.

Below are the details for the hardware node, followed by the high-load container. 

I realize it's not the latest kernel, but a reboot takes half an hour (from first VE goes down to last VE is back up, assuming everything goes well and no FSCK is forced) so we only reboot into new kernels when there is a really serious reason for it or the server crashes - but I don't see anything in the kernel updates since our current kernel that would address this issue anyway.

Why does the load in this container suddenly go up like that?  Websites hosted by the container becomes very sluggish, so it is a real problem. 

It isn't just a problem with this container - or even this hardware node for that reason, I occasionally see it with containers on other hardware nodes as well.  One idea I brought up before was that perhaps it's the file system journal, as suggested in http://wiki.openvz.org/Ploop/Why - but I think that would affect all containers on that file system, not just a single container?

--- HARDWARE NODE ---

# uname -a
Linux server15.hardwarenode.com 2.6.32-042stab049.6 #1 SMP Mon Feb 6 19:17:43 MSK 2012 x86_64 x86_64 x86_64 GNU/Linux

# rpm -q sl-release
sl-release-6.1-2.x86_64

# top -cbn1 | head -17
top - 21:00:02 up 123 days, 15:31,  1 user,  load average: 0.97, 2.70, 2.37
Tasks: 886 total,   6 running, 880 sleeping,   0 stopped,   0 zombie
Cpu(s):  8.4%us,  1.7%sy,  0.0%ni, 86.3%id,  3.5%wa,  0.0%hi,  0.1%si,  0.0%st
Mem:  16420716k total, 15566264k used,   854452k free,  1477372k buffers
Swap: 16777184k total,   623672k used, 16153512k free,  4578176k cached

    PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  94153 27        20   0  164m  41m 3392 S 150.9  0.3  50575:37 /usr/libexec/mys
   9178 27        20   0  159m  29m 3000 S 72.6  0.2   1284:50 /usr/libexec/mysq
 567031 apache    20   0 40296  15m 3588 S 17.2  0.1   0:00.09 /usr/sbin/httpd
 567382 root      20   0 15672 1820  864 R  5.7  0.0   0:00.04 top -cbn1
     38 root      20   0     0    0    0 S  1.9  0.0   2:55.25 [events/3]
     41 root      20   0     0    0    0 S  1.9  0.0   0:29.00 [events/6]
 566362 apache    20   0 43240  19m 4448 R  1.9  0.1   0:01.04 /usr/sbin/httpd
 566857 apache    20   0 55248  11m 3456 R  1.9  0.1   0:00.05 /usr/sbin/httpd
 566918 apache    20   0 42596  17m 3704 S  1.9  0.1   0:00.15 /usr/sbin/httpd
 567033 apache    20   0 39784  14m 3468 S  1.9  0.1   0:00.01 /usr/sbin/httpd

# vzlist -o ctid,laverage
      CTID       LAVERAGE
      1501 0.00/0.05/0.02
      1502 0.00/0.00/0.00
      1503 0.08/0.03/0.01
      1504 0.00/0.00/0.00
      1505 8.29/6.04/3.67
      1506 27.11/16.97/7.89
      1507 0.00/0.00/0.00
      1508 0.19/0.06/0.01
      1509 0.07/0.03/0.00
      1510 0.02/0.02/0.00
      1512 0.00/0.00/0.00
      1514 0.00/0.00/0.00

# iostat -xN 
Linux 2.6.32-042stab049.6 (server15.hardwarenode.com)    07/03/12        _x86_64_        (8 CPU)

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           8.41    0.04    1.75    3.51    0.00   86.28

Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sdd               0.76    56.58    0.59    0.59    20.27   457.28   402.66     0.25  211.66   4.03   0.48
sdc               1.72    27.94   17.20   16.16   887.30   336.18    36.68     0.02   12.71   5.23  17.45
sdb               1.65    27.79   19.48   12.95   975.43   318.64    39.91     0.09   15.22   3.77  12.23
sda               0.01     0.16    0.10    0.24     1.95     2.79    13.79     0.00    7.06   4.16   0.14
vg01-swap         0.00     0.00    0.00    0.00     0.00     0.00     8.00     0.00    3.68   2.22   0.00
vg01-root         0.00     0.00    0.11    0.35     1.94     2.78    10.30     0.02   38.30   3.12   0.14
vg04-swap         0.00     0.00    1.30    0.22    10.41     1.80     8.00     0.01    9.28   1.44   0.22
vg04-vz           0.00     0.00    0.05   56.94     9.86   455.49     8.17     0.01    0.18   0.05   0.27
vg03-swap         0.00     0.00    0.00    0.00     0.00     0.00     8.00     0.00    6.72   1.10   0.00
vg03-vz           0.00     0.00   18.98   42.41   887.30   336.18    19.93     0.39    6.33   2.84  17.45
vg02-swap         0.00     0.00    0.00    0.00     0.00     0.00     8.00     0.00    7.03   0.89   0.00
vg02-vz           0.00     0.00   21.19   39.91   975.43   318.64    21.18     0.15    8.99   2.00  12.23
vg01-vz           0.00     0.00    0.00    0.00     0.00     0.00     7.98     0.00   17.73  17.73   0.00

--- CONTAINER ---

# top -cbn1 | head -100
top - 21:00:04 up 123 days, 15:25,  0 users,  load average: 27.11, 16.97, 7.89
Tasks:  86 total,   2 running,  84 sleeping,   0 stopped,   0 zombie
Cpu(s):  1.4%us,  0.2%sy,  0.0%ni, 98.1%id,  0.1%wa,  0.0%hi,  0.0%si,  0.2%st
Mem:    655360k total,   316328k used,   339032k free,        0k buffers
Swap:  1310720k total,    68380k used,  1242340k free,    58268k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  916 mysql     20   0  159m  29m 3000 S 79.3  4.6   1284:51 /usr/libexec/mysqld
    1 root      20   0  2156   92   64 S  0.0  0.0   0:36.50 init [3]
    2 root      20   0     0    0    0 S  0.0  0.0   0:00.00 [kthreadd/1506]
    3 root      20   0     0    0    0 S  0.0  0.0   0:00.00 [khelper/1506]
   97 root      16  -4  2244    8    4 S  0.0  0.0   0:00.00 /sbin/udevd -d
  634 root      20   0  1812  212  136 S  0.0  0.0   2:39.88 syslogd -m 0
  667 root      20   0  7180  268  168 S  0.0  0.0   1:01.55 /usr/sbin/sshd
  676 root      20   0  2832  392  304 S  0.0  0.1   0:15.13 xinetd -stayalive -
  690 root      20   0  6040  124   72 S  0.0  0.0   0:02.45 /usr/lib/courier-im
  693 root      20   0  4872  252  200 S  0.0  0.0   0:01.94 /usr/sbin/courierlo
  701 root      20   0  6040  124   72 S  0.0  0.0   0:06.34 /usr/lib/courier-im
  703 root      20   0  4872  256  200 S  0.0  0.0   0:03.09 /usr/sbin/courierlo
  709 root      20   0  6040  128   72 S  0.0  0.0   0:18.15 /usr/lib/courier-im
  711 root      20   0  4872  256  200 S  0.0  0.0   0:09.15 /usr/sbin/courierlo
  718 root      20   0  6040  124   72 S  0.0  0.0   0:05.68 /usr/lib/courier-im
  720 root      20   0  4872  252  200 S  0.0  0.0   0:02.54 /usr/sbin/courierlo
  730 qmails    20   0  1796  224  144 S  0.0  0.0   1:27.21 qmail-send
  732 qmaill    20   0  1752  244  192 S  0.0  0.0   0:22.64 splogger qmail
  733 root      20   0  1780  140   64 S  0.0  0.0   0:07.85 qmail-lspawn | /usr
  734 qmailr    20   0  1776  148   76 S  0.0  0.0   0:14.07 qmail-rspawn
  735 qmailq    20   0  1748  104   68 S  0.0  0.0   0:14.01 qmail-clean
  781 root      20   0 51880 4364  196 S  0.0  0.7   1:35.02 /usr/sbin/httpd
  828 named     20   0 44104 5708 1112 S  0.0  0.9  10:10.53 /usr/sbin/named -u
  866 root      20   0  3708    8    4 S  0.0  0.0   0:00.00 /bin/sh /usr/bin/my
  981 root      20   0 33912 3756  916 S  0.0  0.6  10:55.30 /usr/bin/spamd --us
 1107 xfs       20   0  3392   72   40 S  0.0  0.0   0:00.09 xfs -droppriv -daem
 1115 root      20   0  5672    8    4 S  0.0  0.0   0:00.00 /usr/sbin/saslauthd
 1116 root      20   0  5672    8    4 S  0.0  0.0   0:00.00 /usr/sbin/saslauthd
 1122 root      20   0 22992 1868 1084 S  0.0  0.3   2:09.79 /usr/bin/sw-engine
 1123 root      20   0 27328 1508 1160 S  0.0  0.2   6:06.30 /usr/local/psa/admi
 7251 root      20   0  4488  192  136 S  0.0  0.0   0:22.85 crond
 9463 apache    20   0 59184  14m 4356 S  0.0  2.3   0:05.10 /usr/sbin/httpd
10512 apache    20   0 42316 2504   84 S  0.0  0.4   0:00.91 /usr/sbin/httpd
12090 apache    20   0 56964  14m 4492 S  0.0  2.2   0:04.48 /usr/sbin/httpd
12682 apache    20   0 61060  17m 4516 S  0.0  2.7   0:02.45 /usr/sbin/httpd
13870 sw-cp-se  20   0  7852 1932   16 S  0.0  0.3   1:19.03 /usr/sbin/sw-cp-ser
17443 apache    20   0 62416  17m 4436 S  0.0  2.7   0:05.27 /usr/sbin/httpd
17461 apache    20   0 52788  10m 4480 S  0.0  1.6   0:02.24 /usr/sbin/httpd
20430 apache    20   0 62164  17m 4356 S  0.0  2.7   0:04.25 /usr/sbin/httpd
23539 popuser   20   0 37612  25m 2328 S  0.0  3.9   0:01.50 spamd child
23924 apache    20   0 58004  15m 5536 S  0.0  2.4   0:01.56 /usr/sbin/httpd
26361 apache    20   0 54496  11m 3864 S  0.0  1.8   0:01.35 /usr/sbin/httpd
26366 apache    20   0 52944 9.8m 3892 S  0.0  1.5   0:01.45 /usr/sbin/httpd
26964 apache    20   0 59184  14m 4316 S  0.0  2.3   0:07.26 /usr/sbin/httpd
27096 apache    20   0 53728  10m 3868 S  0.0  1.6   0:00.33 /usr/sbin/httpd
27102 apache    20   0 54736  11m 3780 S  0.0  1.8   0:00.15 /usr/sbin/httpd
27103 apache    20   0 54480  11m 3784 S  0.0  1.7   0:00.11 /usr/sbin/httpd
27115 apache    20   0 57064  12m 3816 S  0.0  2.0   0:00.32 /usr/sbin/httpd
27118 apache    20   0 53728  10m 3884 S  0.0  1.6   0:01.21 /usr/sbin/httpd
27120 apache    20   0 52184 8376 3120 S  0.0  1.3   0:00.00 /usr/sbin/httpd
27129 apache    20   0 52168 8072 2960 S  0.0  1.2   0:00.00 /usr/sbin/httpd
27139 apache    20   0 53304 9840 3744 S  0.0  1.5   0:01.08 /usr/sbin/httpd
27140 apache    20   0 53000 9.8m 3832 S  0.0  1.5   0:00.66 /usr/sbin/httpd
27144 apache    20   0 52168 8072 2960 S  0.0  1.2   0:00.00 /usr/sbin/httpd
27147 apache    20   0 53252  12m 5536 S  0.0  1.9   0:00.50 /usr/sbin/httpd
27149 apache    20   0 52980 9924 3740 S  0.0  1.5   0:00.17 /usr/sbin/httpd
27153 apache    20   0 53728  10m 3836 S  0.0  1.6   0:00.49 /usr/sbin/httpd
27164 apache    20   0 55224  11m 3812 S  0.0  1.9   0:00.47 /usr/sbin/httpd
27171 apache    20   0 52916 9776 3708 S  0.0  1.5   0:00.16 /usr/sbin/httpd
27172 apache    20   0 52916 9452 3436 S  0.0  1.4   0:00.17 /usr/sbin/httpd
27173 apache    20   0 55340  11m 3720 S  0.0  1.8   0:00.08 /usr/sbin/httpd
27179 apache    20   0 52020 7764 2716 S  0.0  1.2   0:00.00 /usr/sbin/httpd
27182 apache    20   0 52020 7764 2716 S  0.0  1.2   0:00.00 /usr/sbin/httpd
27185 apache    20   0 55224  11m 3824 S  0.0  1.9   0:00.30 /usr/sbin/httpd
27186 apache    20   0 53788  10m 3840 S  0.0  1.7   0:00.11 /usr/sbin/httpd
27187 apache    20   0 52916 9448 3436 S  0.0  1.4   0:00.08 /usr/sbin/httpd
27188 apache    20   0 54628  10m 3504 S  0.0  1.7   0:00.05 /usr/sbin/httpd
27196 apache    20   0 53728  10m 3572 S  0.0  1.6   0:00.36 /usr/sbin/httpd
27200 apache    20   0 54628  11m 3796 S  0.0  1.7   0:00.05 /usr/sbin/httpd
27202 apache    20   0 54480  11m 3796 S  0.0  1.7   0:00.10 /usr/sbin/httpd
27204 apache    20   0 53992  10m 3544 S  0.0  1.6   0:00.09 /usr/sbin/httpd
27207 apache    20   0 52168 8084 2960 S  0.0  1.2   0:00.00 /usr/sbin/httpd
27213 apache    20   0 52020 6464 1788 S  0.0  1.0   0:00.00 /usr/sbin/httpd
27214 apache    20   0 54216  10m 3516 S  0.0  1.6   0:00.05 /usr/sbin/httpd
27215 apache    20   0 52020 6456 1788 S  0.0  1.0   0:00.00 /usr/sbin/httpd
27216 apache    20   0 52020 7860 2804 S  0.0  1.2   0:00.00 /usr/sbin/httpd
27218 root      20   0  9400 1900 1408 S  0.0  0.3   0:00.00 crond
27219 root      20   0  2492  956  848 S  0.0  0.1   0:00.00 /bin/sh -c /usr/loc
27220 root      20   0  2496 1052  920 S  0.0  0.2   0:00.00 /bin/sh /usr/local/
27233 root      20   0  2540 1016  892 S  0.0  0.2   0:00.00 /bin/bash -c top -c
27234 root      20   0  2284  952  724 R  0.0  0.1   0:00.00 top -cbn1
27235 root      20   0  1756  420  352 S  0.0  0.1   0:00.00 head -100
27247 root      20   0  2496  452  320 S  0.0  0.1   0:00.00 /bin/sh /usr/local/
27248 root      20   0  8280 1504 1120 R  0.0  0.2   0:00.00 /usr/bin/mysql -uad
27249 root      20   0  1800  448  376 S  0.0  0.1   0:00.00 sed -e 1d
27250 root      20   0  2240  640  540 S  0.0  0.1   0:00.00 awk {printf("%s", $

# netstat -ptan | grep ESTABLISHED
tcp        0      0 ::ffff:xx.xx.xx.xx:80   ::ffff:77.87.207.166:21863  ESTABLISHED 23924/httpd
tcp        0      0 ::ffff:xx.xx.xx.xx:80   ::ffff:95.165.204.26:62259  ESTABLISHED 27144/httpd
tcp        0      0 ::ffff:xx.xx.xx.xx:80   ::ffff:193.151.105.100:4059 ESTABLISHED 27200/httpd
tcp        0      0 ::ffff:xx.xx.xx.xx:80   ::ffff:109.169.207.68:50087 ESTABLISHED 27185/httpd
tcp        0      0 ::ffff:xx.xx.xx.xx:80   ::ffff:31.131.70.135:57017  ESTABLISHED 27179/httpd
tcp        0      0 ::ffff:xx.xx.xx.xx:80   ::ffff:95.165.204.26:62220  ESTABLISHED 27103/httpd
tcp        0      0 ::ffff:xx.xx.xx.xx:80   ::ffff:188.134.61.1:60732   ESTABLISHED 27215/httpd
tcp        0      0 ::ffff:xx.xx.xx.xx:80   ::ffff:193.151.105.100:4112 ESTABLISHED 26964/httpd
tcp        0      0 ::ffff:xx.xx.xx.xx:80   ::ffff:109.169.207.68:50043 ESTABLISHED 27164/httpd
tcp        0      0 ::ffff:xx.xx.xx.xx:80   ::ffff:31.131.70.135:56976  ESTABLISHED 27153/httpd

# cat /proc/user_beancounters
Version: 2.5
       uid  resource                     held              maxheld              barrier                limit              failcnt
     1506:  kmemsize                 27735306            179081216            304087040            335544320                    0
            lockedpages                     0                    0                81920                81920                    0
            privvmpages                393683               430195  9223372036854775807  9223372036854775807                    0
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Stealth | 4 Jul 13:35 2012

Re: find out CT ploop device

Hi there,

What is the right way to find out ploop device used for CT and where 
it's image file located?
Antanas | 4 Jul 13:43 2012

Re: find out CT ploop device

Hello, 
maybe this way: ls -al /dev/ploop/*101* ?
where is 101 is veid.

-Antanas

On Wed, Jul 4, 2012 at 2:35 PM, Stealth <st-AMbIAPZXqLPwcm3RLHvk2g@public.gmane.orgg> wrote:
Hi there,


What is the right way to find out ploop device used for CT and where it's image file located?
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ROBBIE SIMPSON | 4 Jul 15:47 2012
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Picon

Current status of ARM compatability

Hi all,

I'm currently attempting to get OpenVZ up and running on an ARM device (the Raspberry Pi), but am
encountering a number of difficulties.

I started by downloading and attempting to compile the current version of the kernel
(vzkernel-2.6.32-042stab057.1) but encountered a number of errors (missing arguments, duplicated
declarations etc) which lead me to think the ARM specific sections are not currently maintained. While
investigating this I also found a post stating that live migration (which we are particularly interested
in) is only supported on x86/x86-64.

So therefore I would ask:

a) Does the current version of the kernel actually support ARM? / Were any previous kernel versions known to
support ARM ?

b) What level of effort (roughly) would be needed to enable live migration support on ARM?

Cheers,
Robbie Simpson
Benjamin Henrion | 4 Jul 16:07 2012

Re: Current status of ARM compatability

On Wed, Jul 4, 2012 at 3:47 PM, ROBBIE SIMPSON
<0700899S@...> wrote:
> Hi all,
>
> I'm currently attempting to get OpenVZ up and running on an ARM device (the Raspberry Pi), but am
encountering a number of difficulties.
>
> I started by downloading and attempting to compile the current version of the kernel
(vzkernel-2.6.32-042stab057.1) but encountered a number of errors (missing arguments, duplicated
declarations etc) which lead me to think the ARM specific sections are not currently maintained. While
investigating this I also found a post stating that live migration (which we are particularly interested
in) is only supported on x86/x86-64.
>
> So therefore I would ask:
>
> a) Does the current version of the kernel actually support ARM? / Were any previous kernel versions known
to support ARM ?
>
> b) What level of effort (roughly) would be needed to enable live migration support on ARM?

It is working on ARM for some older kernel versions:

http://openvz.livejournal.com/24651.html?thread=79947

I would ask what is the oldest kernel version pretty close to 2.6.32
that would compile for the Rpi?

--
Benjamin Henrion <bhenrion at ffii.org>
FFII Brussels - +32-484-566109 - +32-2-3500762
"In July 2005, after several failed attempts to legalise software
patents in Europe, the patent establishment changed its strategy.
Instead of explicitly seeking to sanction the patentability of
software, they are now seeking to create a central European patent
court, which would establish and enforce patentability rules in their
favor, without any possibility of correction by competing courts or
democratically elected legislators."
Olivier Kaloudoff | 4 Jul 16:51 2012
Picon

sharing directory between two VE

Hi,

    For the purpose of a migration, I'd need to share a directory between   
two VE, context 1 and 2. I've tried, with no success:

- mounting /tmp/shared.ext2 from the host to both guests using simfs and -o  
loop
- mounting --bind /tmp/shared.dir from the host to both guests using mount  
--make-shared
- mounting --bind from the 1st VE to the 2nd

Is there another way to try ... ?

Using vserver, I used to change the context of the files, does OpenVz offer  
this capability ?

Best Regards,

Olivier

Gmane