[one-users] Old Vms directory not deleted - DB compromised

[Carlos Martín Sánchez]

Hi,

The VMs themselves are not deleted, just moved to the DONE state. You can
still execute a onevm show <id> and see the information of deleted VMs. To
be consistent with this, we also leave the directories and log files (note
that the disks and checkpoint files are stored in the system datastore).


About the Image, looks like the DB got corrupted. Did you have any problem
with your front-end machine, like a full disk, or hard reset?
Anyway, to change the RUNNING_VMS attribute manually you need to:
- stop opennebula: one stop

- get the body column of your image from the DB. Assuming you use sqlite:
$ sqlite3 /var/lib/one/one.db "select body from image_pool where oid=<id>;"
Copy the text, and change the running vms xml element:
<RUNNING_VMS>0</RUNNING_VMS>

- update the DB
 $ sqlite3 /var/lib/one/one.db 'update image_pool set
body="<IMAGE>........</IMAGE>" where oid=<id>;'


Restart opennebula, and then you should be able to delete the Image

Regards
--
Carlos Martín, MSc
Project Engineer
OpenNebula - The Open-source Solution for Data Center Virtualization
www.OpenNebula.org | cmartin at opennebula.org |
@OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>



On Wed, Oct 3, 2012 at 9:10 AM, Duverne, Cyrille <
cyrille.duverne at euranova.eu> wrote:

> Hello Carlos,
>
> Thanks a lot for your feedback.
>
> Regarding the Hooks, it works like a charm.
> But you said that it was normal to not delete the old directory of
> destroyed VMs, why ?
>
> Regarding the reserved image, I haven't any VM in any state which is using
> it... :)
>
>
> Kind regards
> CyD
>
> Blog : http://blog.cduverne.com
> Twitter : @CydsWorld
>
> "Imagination is more important than Knowledge"
> Albert Einstein
>
>
>
> Mardi 02/10/2012 à 13:42 Carlos Martín Sánchez a écrit:
>
> Hi,
>
> On Mon, Oct 1, 2012 at 2:42 PM, Duverne, Cyrille <
> cyrille.duverne at euranova.eu> wrote:
>>
>> I've noticed that when I delete a VM, the directory
>> /var/lib/one/one-data/$VMID is left behind and never deleted.
>> Is this normal ?
>> I've seen this behaviour in 3.2, but it's still happening in 3.8
>>
>
> The VM dirs are left behind, that's normal. You can clean-up them using
> hooks [1], take a look at this ticket [2].
>
> VM_HOOK = [
>    name      = "vmdir_cleanup",
>    on        = "DONE",
>    command   = "/bin/rm",
>    arguments = "-r /var/lib/one/$VMID" ]
>
> VM_HOOK = [
>    name      = "log_cleanup",
>    on        = "DONE",
>    command   = "/bin/rm",
>    arguments = "/var/log/one/$VMID.log" ]
>
> In previous versions the dirs would be recreated, but it should work in
> 3.6.
>
> By the way, where did you get opennebula 3.8? Can I take a look at it?
> That will speed development! [image: :-)]
>
>
> And on another side, I have an image that can't be deleted, Sunstone says
>> that it's used by 4 VMs, but none is running, and the image can't be
>> deleted from the DB I think.
>
>
> The Image can still be reserved for VMs in states other than running, like
> stopped or suspended.
> Is this your case?
>
>
> Regards
>
> [1] http://opennebula.org/documentation:rel3.6:hooks
> [2] http://dev.opennebula.org/issues/1026
> --
> Carlos Martín, MSc
> Project Engineer
> OpenNebula - The Open-source Solution for Data Center Virtualization
> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>
>
>
>
> On Mon, Oct 1, 2012 at 2:42 PM, Duverne, Cyrille <
> cyrille.duverne at euranova.eu> wrote:
>
>> Hello dear community,
>>
>> I've noticed that when I delete a VM, the directory
>> /var/lib/one/one-data/$VMID is left behind and never deleted.
>> Is this normal ?
>> I've seen this behaviour in 3.2, but it's still happening in 3.8
>>
>> And on another side, I have an image that can't be deleted, Sunstone says
>> that it's used by 4 VMs, but none is running, and the image can't be
>> deleted from the DB I think.
>>
>> Any idea ?
>>
>> Thanks in advance.
>>
>> PS : ONE 3.6 rocksss !!! [image: :p]
>>
>>
>> Cyrille
>>
>> Blog : http://blog.cduverne.com
>> Twitter : @CydsWorld
>>
>> "Imagination is more important than Knowledge"
>> Albert Einstein
>>
>>
>>
>> Lundi 01/10/2012 à 12:57 Carlos Martín Sánchez a écrit:
>>
>> Hi,
>>
>> The files should have been deleted. Do you have any error messages in
>> /var/log/one/oned.log?
>>
>> You can also check each image file path using 'oneimage show', it's the
>> SOURCE attribute.
>>
>> Regards
>> --
>> Carlos Martín, MSc
>> Project Engineer
>> OpenNebula - The Open-source Solution for Data Center Virtualization
>> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>
>>
>>
>>
>> On Mon, Oct 1, 2012 at 8:58 AM, Christoph Robbert <
>> chrobbert at googlemail.com> wrote:
>>
>>> Hello,
>>>
>>> my hard drive is running out of space. So i deleted some unused images
>>> in Opennebula via the sunstone gui.
>>> But i didn't get any additional free hard drive space. But the datastore
>>> contains only files with hash names.
>>> Why happen this? Is this a bug or a feature?
>>>
>>> Regards,
>>>
>>> Christoph Robbert
>>> ______________________________**_________________
>>> Users mailing list
>>> Users at lists.opennebula.org
>>> http://lists.opennebula.org/**listinfo.cgi/users-opennebula.**org<http://lists.opennebula.org/listinfo.cgi/users-opennebula.org>
>>>
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at lists.opennebula.org
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>>
>>
>
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