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From Nik Martin <nik.mar...@nfinausa.com>
Subject Re: Can't create template from snapshot
Date Fri, 24 Aug 2012 14:56:13 GMT
On 08/24/2012 04:46 AM, Nitin Mehta wrote:
> Nik - What I meant was to check if for some reason it is not physically present or getting
deleted ( If you see some deletesnapshot operation for the particular snapshot )
> Also is this happening consistently for all the template create operations from snapshot
or is there a pattern ?

Right, and in my original reply, I stated that I had verified the 
snapshot I created with the file at:

/export/secondary/snapshots/2/104/42cfab12-e7c6-1418-5050-21cb77c0cc45/f4d8a467-c37e-4f4d-a3a3-cf24365f0c36.vhd

So, the snapshot is in fact being created, just the template creation 
fails. I will test it on another VM on another hypervisor to see if it 
also fails.

>
> -----Original Message-----
> From: Nik Martin [mailto:nik.martin@nfinausa.com]
> Sent: Friday, August 24, 2012 1:05 AM
> To: cloudstack-users@incubator.apache.org
> Subject: Re: Can't create template from snapshot
>
> On 08/23/2012 11:00 AM, Nitin Mehta wrote:
>> Nik - Can you please log in to the hypervisor and see in the logs under /var/log/SMlog
if there is any failure logged there for this operation ? Search for create_privatetemplate_from_snapshot
there.
>>
> I tailed the SMlog while I was trying to craete a template and nothing changed. I also
tailed /var/log/messages, and nothing changed there either.
>
>> 34a0115b-466a-492a-b4f4-d4a0db5dc55b which you are wondering about is nothing but
a random UUID for mounting the snapshots directory from sec. storage (on which this snapshot
is physically present). This UUID directory gets deleted as part of the cleanup once the operations
is done and the snapshot directory is unmounted.
>> What you need to verify is whether the snapshot is present on sec. storage under
the directory snaphots/account_id/volume_id_of_snapshot/  on sec. storage or if you can find
any evidence of snapshot deleting in the MS logs bcz that seems to be the issue here.
>>
> Ok, here's what I see.  To get in sync, I deleted all snapshots on this VM, and confirmed
that the snapshots were deleted from secondary storage.  I then created a new snapshot.  Here
is the record in the snapshots table:
> +----+----------------+------------+-----------+-----------+------------------+-----------+--------------------------------------+--------------------------------
> | id | data_center_id | account_id | domain_id | volume_id |
> disk_offering_id | status    | path                                 |
> name
> +----+----------------+------------+-----------+-----------+------------------+-----------+--------------------------------------+--------------------------------
> |  3 |              1 |          2 |         1 |       104 |
>      10 | BackedUp | a0f74cf2-a8c0-40aa-9452-61b110e8b4a8 |
> Android_ROOT-104_20120823192357
> +----+----------------+------------+-----------+-----------+------------------+-----------+--------------------------------------+--------------------------------
>
> Cloudstack reports this in the UI:
>
> Name	Android_ROOT-104_20120823192357
> ID	005c0d8b-8733-45cb-8ad3-61c25e9eaf01
>
> On the disk on secondary storage, I have:
> /export/secondary/snapshots/2/104/42cfab12-e7c6-1418-5050-21cb77c0cc45/
>
> -rw-r--r--. 1 root root 1437274624 Aug 23 14:27
> f4d8a467-c37e-4f4d-a3a3-cf24365f0c36.vhd
>
> So, the snapshot is being created.
>
>> Thanks,
>> -Nitin
>>
>> -----Original Message-----
>> From: Nik Martin [mailto:nik.martin@nfinausa.com]
>> Sent: Thursday, August 23, 2012 9:05 PM
>> To: cloudstack-users@incubator.apache.org
>> Subject: Can't create template from snapshot
>>
>> I recently added a new zone to my CS Acton cloud, using Xenserver 6.02 HVs. My secondary
storage is NFS on Centos 6.  I can upload ISOs, CS downloaed the system template fine, and
I can create VMs, and make snapshots from Volumes.  When I pick a snapshit and try to create
a template, I get:
>>
>> 2012-08-23 10:09:39,992 WARN  [cloud.vm.VirtualMachineManagerImpl]
>> (Job-Executor-29:job-44) Cleanup failed due to Creating template from snapshot 6ec231ac-9468-454c-ab60-5c46c4463799
failed due to
>> com.cloud.utils.exception.CloudRuntimeException:
>> create_privatetemplate_from_snapshot failed due to failed to query /var/run/cloud_mount/34a0115b-466a-492a-b4f4-d4a0db5dc55b/6ec231ac-9468-454c-ab60-5c46c4463799.vhd
>>
>> If I log into the HV the VM is running on, and look at /var/run/cloud_mount/, there
are hundreds of directories, but 34a0115b-466a-492a-b4f4-d4a0db5dc55b is not one of them.
Is someting out of sync?
>>
>> --
>> Regards,
>>
>> Nik
>>
>
>


-- 
Regards,

Nik


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