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GameServer out of memory [message #1929]

Wed, 08 March 2006 11:11

martin18
Messages: 2
Registered: March 2006
Location: nl

Junior Member

Hello.

I am trying to run a cod2 game server with openvz. but i get a error from the game server (out of memory)

The server is 64bit software and has 2GB of memory.

What can i do ??

(sorry for my bad eng)

tanks Martin

-------------------
meminfo

MemTotal: 2050688 kB
MemFree: 10584 kB
Buffers: 3064 kB
Cached: 1743616 kB
SwapCached: 1260 kB
Active: 1147536 kB
Inactive: 730132 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 2050688 kB
LowFree: 10584 kB
SwapTotal: 2031608 kB
SwapFree: 2004872 kB
Dirty: 0 kB
Writeback: 0 kB
Mapped: 137808 kB
Slab: 145792 kB
Committed_AS: 312784 kB
PageTables: 2048 kB
VmallocTotal: 536870908 kB
VmallocUsed: 6336 kB
VmallocChunk: 18014398509481980 kB
-------------------

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Re: GameServer out of memory [message #1932 is a reply to message #1929]

Wed, 08 March 2006 16:10

LayerFour
Messages: 2
Registered: March 2006
Location: Hampshire, UK

Junior Member

Have you setup your User Beancounters properly for the VE?

Christopher Imrie
LayerFour Solutions

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Re: GameServer out of memory [message #1934 is a reply to message #1929]

Wed, 08 March 2006 16:38

kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia

Senior Member

In VPS you should look into /proc/userbeancounters, not /proc/meminfo. It is user beancounters which limit VPS memory.

If you see there is some parameter for which failcnt (last column) is more than zero, you have to increase it (say, multiply both barrier and limit by 1.5 then apply using vzctl set NNN --paramname new_barrier:new_limit --save). Then, do vzcfgcheck /etc/sysconfig/vz-scripts/NNN.conf and if there are some errors, fix them as suggested.

Run your app again and watch /proc/user_beancounters. If failcnt grows, increase the appropriate parameter again, and do not forget to check new VPS config using vzcfgcheck.

That way you will end up with an optimal config for a VPS running your particular application.

Kir Kolyshkin

http://static.openvz.org/userbars/openvz-developer.png

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Re: GameServer out of memory [message #1936 is a reply to message #1934]

Wed, 08 March 2006 17:50

martin18
Messages: 2
Registered: March 2006
Location: nl

Junior Member

okay there is someting wrong ......

how to setup Beancounters ???

Version: 2.5
       uid  resource                     held              maxheld              barrier                limit              failcnt
         1: kmemsize                  3248554              5242876              5242880              5242880             57576330
            lockedpages                     0                    0                   32                   32                    0
            privvmpages                  5886               237787               262144               262144                   52
            shmpages                      683                 1979                 8192                 8192                    0
            dummy                           0                    0                    0                    0                    0
            numproc                        18                   33                   80                  100                    0
            physpages                    3016                60573                32768                32768                    0
            vmguarpages                     0                    0               131072               131072                    0
            oomguarpages                 3056                92402                32768                32768                    0
            numtcpsock                      4                   11                   80                   80                    0
            numflock                        2                    4                  100                  110                    0
            numpty                          1                    5                   16                   20                    0
            numsiginfo                      0                   10                  256                  256                    0
            tcpsndbuf                    4672               109792               319488               524288                    0
            tcprcvbuf                       0               328640               319488               524288                  249
            othersockbuf                 2336                16608               132096               336896                    0
            dgramrcvbuf                     0                13152               132096               132096                    0
            numothersock                    4                   18                   80                   80                    0
            dcachesize                 154208               284992              1048576              1097728                    0
            numfile                       238                  522                 1280                 1280                    0
            dummy                           0                    0                    0                    0                    0
            dummy                           0                    0                    0                    0                    0
            dummy                           0                    0                    0                    0                    0
            numiptent                      10                   10                  128                  128                    0

[Updated on: Mon, 20 March 2006 06:28] by Moderator

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Re: GameServer out of memory [message #2099 is a reply to message #1936]

Mon, 20 March 2006 06:40

kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia

Senior Member

Here is a step-by-step instruction

(0) Start with the known working VPS config. It can be vps.basic config, you can apply it to a VPS using this command:

vzctl set VPSID --applyconfig vps.basic --save

(1) See /proc/user_beancounters if there are some beancounters for which failcnt>0. In your case this is kmemsize, privvmpages and tcprcvbuf. You need to increase them.

(2) For each beancounter you want to increase, take the current values of barrier and limit, and multiply it by some factor (e.g. 1.2 or 1.5 or 2 or 4). Apply the newly calculated values using this command:

vzctl set VPSID --beancounter newbarrier:newlimit --save

Please note that in most cases there should be a safety gap between a barrier and a limit.

(3) Check the resulting configuration using vzcfgvalidate:

vzcfgvalidate /etc/sysconfig/vz-scripts/VPSID.conf

If there are some errors or warnings -- fix them as suggested, or run vzcfgvalidate with -r switch to fix automatically.

(4) Notice the current value of failcnt for the parameter you have just increased. Try running your application in VPS again. Check if there is some problems in its log files. Check if failcnt is growing. If it is growing, go back to step 2.

(5) You should end up with your application fully working, without increasing failcnts for all the beancounters, and with a valid VPS config (vzcfgvalidate should not complain). To be sure, restart your VPS and check /proc/user_beancounters again. Then try to create some load for your application to check it works under load as well.

Kir Kolyshkin

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Re: GameServer out of memory [message #2102 is a reply to message #1936]

Mon, 20 March 2006 13:31

dev
Messages: 1693
Registered: September 2005
Location: Moscow

Senior Member

This output shows that you have configured too tight resource restrictions for your VPS.

the last column in /proc/user_beancounters output shows you which resource was experiencing shortage.
in your case it is kmemsize, privvmpages, tcprcvbuf.
you can increase these limits using:

# vzctl set <VPSID> --kmemsize barrier:limit --save
# vzctl set <VPSID> --privvmpages barrier:limit --save
# vzctl set <VPSID> --tcprcvbuf barrier:limit --save

in your case I would try to increase it, something like this:

vzctl set 111 --kmemsize 10000000:11000000 --tcprcvbuf 5242880:5842880 --save

Also, check whether you game server has parameter which allows to limit its memory desires. I found the following parameters for cod2:

Quote:

set com_hunkMegs "96" // Amount of memory dedicated to server
set com_zoneMegs "32" // File memory

here: http://www.codboards.com/lofiversion/index.php/t8798.html

[Updated on: Mon, 20 March 2006 13:37]

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