[one-users] Cannot create a VM snapshot

Thu Oct 2 01:23:59 PDT 2014

Hi Pavel,

that is pretty strange, the snapshot_* files should be there, under the
/var/tmp/one path.

Can you force the sync with "onehost sync --force"?

cheers,
Jaime

On Tue, Sep 30, 2014 at 10:10 AM, Pavel Tankov <
pavel.tankov at strategyobject.com> wrote:

> opennebula-node package is installed:
>
> # rpm -qa | grep opennebula-node
> opennebula-node-kvm-4.8.0-1.x86_64
>
> The command onehost sync returns this:
>
> # onehost sync
> No hosts are going to be updated.
>
> --
> Pavel Tankov
>
> On 09/30/2014 11:06 AM, Hamada, Ondrej wrote:
>
>> Maybe you have to run `onehost sync` against that node or install
>> opennebula-node package.
>>
>> O.
>>
>>
>>
>> -----Original Message-----
>> From: Users [mailto:users-bounces at lists.opennebula.org] On Behalf Of
>> Pavel Tankov
>> Sent: Tuesday, September 30, 2014 9:03 AM
>> To: users at lists.opennebula.org
>> Subject: Re: [one-users] Cannot create a VM snapshot
>>
>> The 'snapshot_create' script is not available on /var/tmp/one/vmm/kvm/.
>> The contents of this folder is:
>>
>> # ls -l /var/tmp/one/vmm/kvm/
>> total 32
>> -rwxr-xr-x 1 oneadmin oneadmin  1596 Aug 20 11:25 cancel -rwxr-xr-x 1
>> oneadmin oneadmin  1545 Aug 20 11:25 deploy
>> -rw-r--r-- 1 oneadmin oneadmin  1790 Aug 20 11:25 kvmrc -rwxr-xr-x 1
>> oneadmin oneadmin 14255 Aug 20 11:25 poll -rwxr-xr-x 1 oneadmin oneadmin
>> 2304 Aug 20 11:25 shutdown
>>
>> But isn't this a temporary folder. Is the script expected to be there?
>>
>> On the other hand:
>>
>> # find / -name snapshot_create
>> /var/lib/one/remotes/vmm/sl/snapshot_create
>> /var/lib/one/remotes/vmm/ec2/snapshot_create
>> /var/lib/one/remotes/vmm/kvm/snapshot_create
>> /var/lib/one/remotes/vmm/vmware/snapshot_create
>> /var/lib/one/remotes/vmm/az/snapshot_create
>> /var/lib/one/remotes/vmm/xen3/snapshot_create
>> /var/lib/one/remotes/vmm/xen4/snapshot_create
>>
>> -- Pavel Tankov
>>
>> On 09/28/2014 05:04 PM, Ondrej Hamada wrote:
>>
>>> Hi Pavel,
>>>
>>> this check has failed:
>>>
>>> if [ -x "/var/tmp/one/vmm/kvm/snapshot_create" ];
>>>
>>> You should check that the 'snapshot_create' script is available on the
>>> host in the specified path and that it is executable by oneadmin user.
>>>
>>> Ondra
>>>
>>> On 09/24/2014 04:22 PM, Pavel Tankov wrote:
>>>
>>>> Hello,
>>>>
>>>> I have Opennebula 4.8 on CentOS 6.5. I have installed from the
>>>> Marketplace CentOS 7 - KVM - OpenNebula 4.8
>>>>
>>>> I am able to instantiate it and it runs fine. However, when I click
>>>> on the running VM --> Snapshots --> Take snapshot, It doesn't get
>>>> created and in the log there is this:
>>>>
>>>> --- log begin ---
>>>> Wed Sep 24 17:13:41 2014 [Z0][DiM][I]: New VM state is ACTIVE.
>>>> Wed Sep 24 17:13:41 2014 [Z0][LCM][I]: New VM state is PROLOG.
>>>> Wed Sep 24 17:13:42 2014 [Z0][LCM][I]: New VM state is BOOT Wed Sep
>>>> 24 17:13:42 2014 [Z0][VMM][I]: Generating deployment file:
>>>> /var/lib/one/vms/61/deployment.0
>>>> Wed Sep 24 17:13:42 2014 [Z0][VMM][I]: ExitCode: 0 Wed Sep 24
>>>> 17:13:42 2014 [Z0][VMM][I]: Successfully execute network driver
>>>> operation: pre.
>>>> Wed Sep 24 17:13:42 2014 [Z0][VMM][I]: ExitCode: 0 Wed Sep 24
>>>> 17:13:42 2014 [Z0][VMM][I]: Successfully execute virtualization
>>>> driver operation: deploy.
>>>> Wed Sep 24 17:13:42 2014 [Z0][VMM][I]: ExitCode: 0 Wed Sep 24
>>>> 17:13:42 2014 [Z0][VMM][I]: Successfully execute network driver
>>>> operation: post.
>>>> Wed Sep 24 17:13:43 2014 [Z0][LCM][I]: New VM state is RUNNING Wed
>>>> Sep 24 17:15:05 2014 [Z0][VMM][I]: Command execution fail: 'if [ -x
>>>> "/var/tmp/one/vmm/kvm/snapshot_create" ]; then
>>>> /var/tmp/one/vmm/kvm/snapshot_create one-61 0 61 localhost; else exit
>>>> 42; fi'
>>>> Wed Sep 24 17:15:05 2014 [Z0][VMM][I]: Warning: Permanently added
>>>> 'localhost' (RSA) to the list of known hosts.
>>>> Wed Sep 24 17:15:05 2014 [Z0][VMM][I]: ExitCode: 42 Wed Sep 24
>>>> 17:15:05 2014 [Z0][VMM][E]: Error creating new VM Snapshot
>>>> --- log end ---
>>>>
>>>> Please, note that the image is from the Marketplace and is supposed
>>>> to be qcow2, e.g. to support snapshots.
>>>> I tried both with the image set to "Persistent: no" and "Persistent:
>>>> yes".
>>>> I tried with both the image set to "Type: OS" and "Type: DATABLOCK".
>>>>
>>>> What could be the problem?
>>>> Thanks!
>>>>
>>>>
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-- 
Jaime Melis
Project Engineer
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org | jmelis at opennebula.org
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