[Users] Need help configuring memory parameters

Sterling Windmill sterling at ampx.net
Thu Jun 3 13:43:44 EDT 2010


Can you pastebin the contents of /proc/user_beancounters on the host?

----- Original Message -----
From: "Tomas Lund" <tlund at nxs.se>
To: users at openvz.org
Sent: Thursday, June 3, 2010 1:40:09 PM
Subject: [Users] Need help configuring memory parameters

Hello,

I recently started using OpenVZ on a new server and I am having a really
hard time understanding all the memory configuration options. I have
read several different web pages and finally thought I understood it,
but I am
having problems with applications in my container claiming they can not
allocate memory while "top" shows lots of free memory.

Both VE0 and the container are running 64-bit Debian Squeeze with the
2.6.32-5-openvz-amd64 kernel from Debian unstable.

The only running container (currently) has 3Gbyte allocated (server has
8Gbyte). It is running MySQL, Apache and a teamspeak3 server. top
indicates that only about 300Mbyte memory is used. I was expecting, and
would like to, only use 512Mbytes of memory for this container.

Tasks: 29 total, 1 running, 27 sleeping, 1 stopped, 0 zombie
Mem: 3145728k total, 265704k used, 2880024k free, 0k buffers

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
345 mysql 20 0 236m 55m 7808 S 0 1.8 12:40.74 mysqld
27713 www-data 20 0 215m 17m 3472 S 0 0.6 0:00.18 apache2
27715 www-data 20 0 215m 17m 3488 S 0 0.6 0:00.14 apache2
6005 root 20 0 206m 12m 7296 S 0 0.4 0:10.80 apache2

Full config, top output and "dmesg" from the OOM-scenario is posted at
http://tlund.pp.se/openvz.txt

I would very much appreciate any input on what is wrong in my config,
and how to fix it.

Best regards,
Tomas
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