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Hi Priyanka,
    Can you please tell me the hypervisor that you are using?

Thanks.

Regards,
Nitish B.

On Tue, Jan 6, 2015 at 4:00 PM, ppnaik <ppnaik at cse.iitb.ac.in> wrote:

> Thanks Nitish,
>
> The problem was it was taking disk from the /root partition which had just
> 50 GB that is why it was overcommiting. Is there a way to ask it to use the
> /home partition instead.
>
> Thanks
>
> Priyanka
>
>
> On 2015-01-06 15:39, nithish B wrote:
>
>> Hi Priyanka,
>>     The compute node has already been ballooned and over allocated to it's
>> limit. To solve the issue, kindly add more disk to you compute host.
>>
>> Hope this helps.
>>
>> Thanks.
>>
>> Regards,
>> Nitish B.
>>
>> On Tue, Jan 6, 2015 at 2:26 PM, ppnaik <ppnaik at cse.iitb.ac.in> wrote:
>>
>>  Hi All,
>>> I have a multi node setup of openstack juno on centos 7. After I
>>> instantiate multiple VMs and check the nova-compute.log on compute nodes
>>> it
>>> shows a negative value for free disks even though the the physical system
>>> has a lot of free memory
>>>
>>> on the physical system. df -h
>>>
>>> Filesystem               Size  Used Avail Use% Mounted on
>>> /dev/mapper/centos-root   50G  2.0G   49G   4% /
>>> devtmpfs                  16G     0   16G   0% /dev
>>> tmpfs                     16G     0   16G   0% /dev/shm
>>> tmpfs                     16G  281M   16G   2% /run
>>> tmpfs                     16G     0   16G   0% /sys/fs/cgroup
>>> /dev/mapper/centos-home  865G   33M  865G   1% /home
>>> /dev/sda1                494M  137M  358M  28% /boot
>>>
>>> nova-compute.log on compute node:
>>>
>>> 2015-01-06 11:00:28.756 8123 AUDIT nova.compute.resource_tracker [-]
>>> Total
>>> physical ram (MB): 31911, total allocated virtual ram (MB): 17920
>>> 2015-01-06 11:00:28.756 8123 AUDIT nova.compute.resource_tracker [-] Free
>>> disk (GB): -113
>>> 2015-01-06 11:00:28.757 8123 AUDIT nova.compute.resource_tracker [-]
>>> Total
>>> usable vcpus: 16, total allocated vcpus: 10
>>>
>>> What is the issue and how can I resolve it? Please help.
>>>
>>> Thanks,
>>>
>>> Priyanka
>>>
>>>
>>>
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