[one-users] Problem with TMEM and FMEM from "onehost list"

[Javier Fontan]

Hello,

I suppose you are using xen (correct me if I am wrong).

Management node of xen (Dom-0) is also a virtual machine. If not
configured correctly this vm will use as much ram as it wants, most of
the time eating up most of it. When you execute top in Dom-0 you get
the memorry allocated for that vm, not for the physical machine. top
command is not a good command to check for total and available memory
in a xen physical node. Also that free memory is the free memory for
the operating system of that vm, not the free memory available for
other vms.

You should configure xen correctly so it does not eat up all available
memory. There are various mails in this mail list describing the
procedure, also you can check xen documentation and wiki.

Bye

On Tue, Jun 8, 2010 at 12:45 PM, Jose Luis <jllucas at dsi.uclm.es> wrote:
>
> Hi all,
> I've added some hosts to the pool I have.
> I've checked each one using "top" command, but while using "onehost list"
> command I realized that TMEM and FMEM are not right.
> So now when I deploy a VM to any node, I can't access to it.
>
> Any idea of this difference between "top" and "onehost list"?
> Thanks!
>
>
> This is my case:
> joseluis at master:~$ onehost list
>  ID NAME                      RVM   TCPU   FCPU    ACPU    TMEM    FMEM STAT
>  0 sun01                           0        200    200        200
> 1046528   63488   on
>  1 sun02                           0        200    200        200
> 1046528   63488   on
>  2 node12                         0        800    799        799     1598873
>  131072  on
>  3 tortosa                         0        200    200        200
> 1571840   96256   on
>
> root at sun01:~$ top
> Mem:    963240k total,   350008k used,   613232k free,    64132k buffers
>
> root at sun02:~$ top
> Mem:    963240k total,   412392k used,   550848k free,   111612k buffers
>
> root at node12:~# top
> Mem:  15731648k total,   592420k used, 15139228k free,   112596k buffers
>
> root at tortosa:~# top
> Mem:   1452616k total,   784152k used,   668464k free,   199048k buffers
>
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>



-- 
Javier Fontan, Grid & Virtualization Technology Engineer/Researcher
DSA Research Group: http://dsa-research.org
Globus GridWay Metascheduler: http://www.GridWay.org
OpenNebula Virtual Infrastructure Engine: http://www.OpenNebula.org