[ovirt-users] Balloon driver unavailable

Michal Skrivanek michal.skrivanek at redhat.com
Wed Nov 19 11:02:02 UTC 2014


On Nov 18, 2014, at 21:40 , John Gardeniers <jgardeniers at objectmastery.com> wrote:

> That works because you have effectively disabled ballooning for the VM, which is not really solving the underlying problem.
> 
> regards,
> John
> 
> 
> On 18/11/14 10:02, Groten, Ryan wrote:
>> I also recently started getting these errors.  They started when I upgraded from 3.4.0 to 3.4.2. 

vdsm log?
likely guest-agent logs too...

Thanks,
michal

>> The error appears on certain VMs (but not all) consistently every 15 minutes.  It doesn’t matter if the “Memory Balloon Device Enabled” checkbox checked or unchecked.
>>  
>> I got the message to stop appearing by changing the value of Physical Memory Guaranteed to match the VMs configured memory.
>>  
>>  
>> From: users-bounces at ovirt.org [mailto:users-bounces at ovirt.org] On Behalf Of John Gardeniers
>> Sent: November-16-14 10:13 PM
>> To: users at ovirt.org
>> Subject: Re: [ovirt-users] Balloon driver unavailable
>>  
>> Just an FYI.
>> 
>> In my case the balloon driver was installed and it was running. The problem was eventually resolved by uninstalling the entire agent suite, rebooting and reinstalling it. Doing the same just for the balloon driver didn't work.
>> 
>> regards,
>> John
>> 
>> 
>> On 13/11/14 07:35, John Gardeniers wrote:
>> I'm seeing it for a VM that most definitely does have the balloon driver installed. Care to take another guess?
>> 
>> regards,
>> John
>> 
>> 
>> On 12/11/14 20:04, Amedeo Salvati wrote:
>> you receive this error because on your cluster configurations you have checked "Enable Memory Balloon Optimization", and on some of your VMs there aren't balloon driver available; if you don't want anymore this warning messages you can uncheck this under 
>> 
>> Clusters -> (select your cluster) edit -> Optimization -> uncheck Enable Memory Balloon Optimization
>> 
>> Best Regards
>> Amedeo Salvati
>> 
>> 
>> Date: Wed, 12 Nov 2014 07:59:33 +0000
>> From: Karli Sj?berg <Karli.Sjoberg at slu.se>
>> To: "tdemeter at itsmart.hu" <tdemeter at itsmart.hu>
>> Cc: "users at ovirt.org" <users at ovirt.org>
>> Subject: Re: [ovirt-users] Balloon driver unavailable
>> Message-ID: <5F9E965F5A80BC468BE5F40576769F099DF97243 at exchange2-1>
>> Content-Type: text/plain; charset="utf-8"
>> 
>> On Wed, 2014-11-12 at 08:35 +0100, Demeter Tibor wrote:
>> > Hi,
>> > 
>> > 
>> > I have a lot of centos 6 based vms and I have install "ovirt guest
>> > agent" for those vms. 
>> > But two vm always say "The balloon driver on xxxvm on hostX is
>> > requested but unavailable"
>> > I did check the virtio_balloon module are loaded on vms.
>> > 
>> > 
>> > Anybody can me help?
>> > 
>> > 
>> > Thanks in advance
>> > 
>> > 
>> > Tibor
>> 
>> > I see that too, but only on Windows 2008 R2 guests... No one else ever
>> > said anything about it, so I thought it was just me:)
>> 
>> 
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