[one-users] Ganglia reports

[Javier Fontan]

The information pushed to ganglia in this variable is then read by
ganglia drivers in opennebula to extract the information about the
VMs.

On Wed, Apr 27, 2011 at 8:32 PM, Craig Dawson <Craig.Dawson at sas.com> wrote:
> Thanks Javier,
>
> Thanks for the explanation.  I was under the impression that the virtual machine information would also be graphed.  What is the purpose of the OPENNEBULA_VM_INFORMATION metric?  Is it so that you can pull this information from Ganglia using another tool?  Thanks again!
>
> Craig
>
> -----Original Message-----
> From: Javier Fontan [mailto:jfontan at gmail.com]
> Sent: Wednesday, April 27, 2011 11:23 AM
> To: Craig Dawson
> Cc: users at lists.opennebula.org
> Subject: Re: [one-users] Ganglia reports
>
> Yikes! I've misreaded the email. The VM information is not directly parseable by ganglia so it cannot be used to draw graphics or to get notifications on VM activity. There are two ways to add VM information from my point of view, one is to create a virtual ganglia host per VM and add the information there (I see it a bit hackish but maybe the cleanest). The other is to create new parameters per VM/monitoring value pair in the physical host it is running it, something like OPENNEBULA_VM_85_CPU, OPENNEBULA_VM_85_FREEMEMORY and so on. I see this technique ugly and non scalable.
>
> Do you see any other way to do this?
>
> On Tue, Apr 26, 2011 at 11:29 AM, Javier Fontan <jfontan at gmail.com> wrote:
>> That weird string in OPENNEBULA_VMS_INFORMATION is normal, is a
>> yaml-base64 representation of the VMS info. Can you send me that
>> string from one of your hosts, maybe there is something wrong in the
>> monitoring scripts.
>>
>> On Thu, Apr 21, 2011 at 7:51 PM, Craig Dawson <Craig.Dawson at sas.com> wrote:
>>> I just installed OpenNebula 2.2 and I wanted to get Ganglia reporting
>>> set up.  I was able to get Ganglia running on each of my host
>>> machines.  The host are all reporting in and I'm able to see all of the graphs per host.
>>> I'm running RHEL 6 on the hypervisor nodes and using KVM for my
>>> guests.  I attempted to set up the reporting for my guest machines as described here:
>>> http://opennebula.org/documentation:rel2.2:ganglia
>>>
>>> When I look at my Ganglia reports, I don't see any of the guests
>>> showing up.  I am running gmetric out of cron every minute.  I
>>> noticed after I set this up, there is now a
>>> OPENNEBULA_VMS_INFORMATION metric, but when I click on this, I only
>>> see the base64 encoded string for each host. Is there some other
>>> process that is supposed to grab the information from Ganglia and
>>> generate the graphs?  I'm very new to OpenNebula and Ganglia, so any help in identifing where I should look next would be greatly appreciated.  Thanks!
>>>
>>> Craig Dawson
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opennebula.org
>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>
>>>
>>
>>
>>
>> --
>> 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
>>
>
>
>
> --
> 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
>
>
>



-- 
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