I will take a look into it.
Thanks!
Javi
On 21/05/12 22:33, Ruben S. Montero wrote:
Hi
Yes sorry, I overlooked your email, however the same applies for VMs.
Most of the info is gathered from dominfo and the information obtained
for the process thourgh ps. Here you may want to check poll at
var/remotes/vmm/kvm (KVM module) to tune this.
Cheers
Ruben
On Thu, May 17, 2012 at 4:04 PM, Javier Alvarez<javier.alva...@bsc.es> wrote:
Hello Ruben,
I think we are talking about different things, kvm.rb (or xen.rb) is used
for the monitoring of the node, isn't it? In my case, what OpenNebula is not
retrieving is the cpu and memory information of the running VMs.
Thanks,
Javi
On 14/05/12 10:22, Ruben S. Montero wrote:
Hi
In general you can take and tune the probes at var/remotes/im/kvm.d:
1.- CPU is gathered by kvm.rb using top. (free_cpu is associated to
the idle parameter while used is total - free)
2.- In the same way, memory is obtained from virsh nodeinfo. If you
plan to use ballooning, you need to adapt the probe. Currently it is
getting the "Memory size" information
Cheers
Ruben
On Thu, May 10, 2012 at 5:05 PM, Antonio Carlos Salzvedel Furtado
Junior<acsf...@inf.ufpr.br> wrote:
I noticed it too when using KVM. In my case the CPU parameter was
incorrect.
Let's say the Memory parameter was "correct", although it only prints the
maximum amount of memory that can be allocated to a VM. It does not
consider
any information about the Virtio baloon driver, so I think this
monitoring
is kind of pointless. If I go to the Qemu Monitor and inflate the baloon,
OpenNebula will still say that I have the same amount of memory.
In order to test the CPU parameter, I stressed the VM. As KVM treats the
VMs
as normal processes, I just compared the OpenNebula results with the top
command. While top output the expected result, OpenNebula seemed to print
arbitrary numbers.
Cordially,
Antonio Carlos Furtado
On Thu, May 10, 2012 at 11:35 AM, Javier Alvarez<javier.alva...@bsc.es>
wrote:
Hello,
I'm running OpenNebula over Xen in a single machine and everything works
fine, the VMs boot correctly and I can access them through SSH without
problems. The only thing is that the monitoring doesn't seem to be
working
well because 'onevm list' doesn't show any CPU nor Memory in the VMs.
Only
after a while, in the Memory column it appears 1020.3M, which anyways is
not
the real value. Also, /proc/meminfo and /proc/cpuinfo in the VMs show
the
expected values, as well as running 'xm list' in Dom0.
Is not a big issue, but I'm afraid it could cause other problems in the
future.
Thank you,
Javi
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