[one-users] OpenNebula Dashboard wrong memory real capacity usage.

[Carlos Martín Sánchez]

Hi,

OpenNebula uses the values returned by the hypervisor. So it is reporting
the cpu and memory that the VM processes are using, it does not get
information from the guest.

If that's what you need, you can use the OneGate component [1] to push
information from the guests to OpenNebula. The values printed in the
dashboard can be changed in the vms-tab.js file [2] with the name of the
attributes reported via OneGate.

Regards

[1]
http://docs.opennebula.org/4.6/advanced_administration/application_insight/onegate_overview.html
[2]
https://github.com/OpenNebula/one/blob/one-4.6/src/sunstone/public/js/plugins/vms-tab.js#L1279

--
Carlos Martín, MSc
Project Engineer
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula
<http://twitter.com/opennebula> <cmartin at opennebula.org>


On Fri, Jul 4, 2014 at 9:26 AM, Leszek Master <keksior at gmail.com> wrote:

> For example one of my VM's:
>
> VIRTUAL MACHINE MONITORING
> USED MEMORY         : 2G
> USED CPU            : 0
> NET_TX              : 40M
> NET_RX              : 46.5M
>
> Inside VM the command free -m:
>              total       used       free     shared    buffers     cached
> Mem:          2003        284       1719          0         16         98
> -/+ buffers/cache:        168       1835
> Swap:          975          0        975
>
>
>
> Another VM:
>
> VIRTUAL MACHINE MONITORING
> USED MEMORY         : 6G
> USED CPU            : 3
> NET_TX              : 3.5G
> NET_RX              : 5.1G
>
> And inside:
>
>
>              total       used       free     shared    buffers     cached
> Mem:          5971       4940       1030          0        134       1989
> -/+ buffers/cache:       2816       3154
> Swap:            0          0          0
>
>
> It looks like the same for other vm's. It shows in the used all of my VM
> memory. I think it shouldn't do that.
>
>
>
> 2014-07-03 18:34 GMT+02:00 Carlos Martín Sánchez <cmartin at opennebula.org>:
>
> Hi,
>>
>> On Thu, Jul 3, 2014 at 4:05 PM, Leszek Master <keksior at gmail.com> wrote:
>>
>>> But, even when i create 5 ubuntu server 12.04 vm with 16 GB of ram, it
>>> shows me there more than 100%.
>>>
>>> How can i repair it to shows the real usage?
>>>
>>
>> Can you send the values of the requested and monitored cpu & memory?
>> You can get those from the onevm show output:
>>
>> VIRTUAL MACHINE MONITORING
>>
>> USED MEMORY         : 0K
>> USED CPU            : 0
>>
>> ...
>>
>> VIRTUAL MACHINE TEMPLATE
>>
>> CPU="2"
>> MEMORY="128"
>>
>>
>> Regards
>>
>> PS: please reply also to the mailing list.
>>
>> --
>> Carlos Martín, MSc
>> Project Engineer
>> OpenNebula - Flexible Enterprise Cloud Made Simple
>> www.OpenNebula.org <http://www.opennebula.org/> | cmartin at opennebula.org
>>  | @OpenNebula <http://twitter.com/opennebula> <cmartin at opennebula.org>
>>
>>
>>
>>>
>>> 2014-07-02 11:33 GMT+02:00 Carlos Martín Sánchez <cmartin at opennebula.org
>>> >:
>>>
>>> Hi,
>>>>
>>>> That's 100% percentage is the usage of what the VMs requested, which is
>>>> not related to the total host capacity.
>>>>
>>>> The VM real cpu and memory numbers are the values reported for the VM
>>>> hypervisor process. The same values are used for the individual VM ->
>>>> Capacity graphs, or under virtual machine monitoring in the onevm show
>>>> output.
>>>>
>>>> Regards
>>>>
>>>> --
>>>> Carlos Martín, MSc
>>>> Project Engineer
>>>> OpenNebula - Flexible Enterprise Cloud Made Simple
>>>> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula
>>>> <http://twitter.com/opennebula> <cmartin at opennebula.org>
>>>>
>>>>
>>>> On Wed, Jul 2, 2014 at 8:34 AM, Leszek Master <keksior at gmail.com>
>>>> wrote:
>>>>
>>>>>  After upgrading my OpenNebula from 4.4 to 4.6.2 i've got problem
>>>>> with memory real capacity usage counter. It shows me 100-110% (depending on
>>>>> the vm number). But on the Hosts i can See 14% Real and 16% Allocated
>>>>> usage. Like in screenshots. It's annoying, but can someone help me solving
>>>>> it out?
>>>>>
>>>>> Screenshot in attachement
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at lists.opennebula.org
>>>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>>>
>>>>>
>>>>
>>>
>>
>
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