[Openstack] About over-commit memory

Sam Su susltd.su at gmail.com
Thu Jun 21 22:03:58 UTC 2012


Hi Vish,

Thank you for your response.

I added a 'line ram_allocation_ratio=10' in nova.conf, then restarted
nova-scheduler in control node. after that was done, I tried to create a
VM, but it still failed, and the debug info is showing as below:
http://pastebin.com/RDHb9fDU

Can you help me to take a look at the error info at your convenience?

Thanks,
Sam

On Thu, Jun 21, 2012 at 12:23 PM, Vishvananda Ishaya
<vishvananda at gmail.com>wrote:

> Try setting:
>
> ram_allocation_ratio=10
>
> in your nova.conf (it defaults to 1.5)
>
> Vish
>
> On Jun 21, 2012, at 11:34 AM, Sam Su wrote:
>
> Hi,
>
> I have a mini openstack environment with one compute node and one nova
> control node. There is 4G memory in the compute node, and I have allocated
> 2 VMs with 2G memory for each VM. When I try to create another VM , I get
> the error as below:
> http://pastebin.com/QZMQvXtB
>
> I am wondering whether Openstack has support memory overcommit? How to do
> this?
>
> It will be much appreciated If someone can give me some hints about this
> in convenience.
>
> Thanks,
> Sam
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