subject:"\[ovirt\-users\] Re\: Cannot delete snapshot"

[ovirt-users] Re: Cannot delete snapshot

2021-04-27 Thread Giulio Casella

Thanks Shani, this did the trick. I managed to tweak the database and
then correctly remove the snapshot.

In the meanwhile, in bugzilla
https://bugzilla.redhat.com/show_bug.cgi?id=1948599, this has been
confirmed as a bug.

Regards,
Giulio Casella

On 22/04/2021 14:31, Shani Leviim wrote:
> Since 6180c2e8-141a-4126-bcb1-5af5caa98175 doesn't exist on the VDSM, it
> should be removed from the DB,
> and since it's the parent id for image
> e77e2773-eecb-46a6-87c7-14df14f7d95b, it also should be changed.
> Something like this:
> UPDATE images set parentid = '19fa612d-2f93-46a5-93e7-c74afc2937fa'
> where image_guid = 'e77e2773-eecb-46a6-87c7-14df14f7d95b';
> 
> Then you can remove the 6180c2e8 image.
> 
> It will be safe if you'll have a backup before making any DB changes.
> 
> *Regards,
> *
> *Shani Leviim
> *
> 
> 
> On Thu, Apr 22, 2021 at 3:06 PM Giulio Casella  > wrote:
> 
> 
> 
> On 22/04/2021 13:20, Shani Leviim wrote:
> > Hi,
> > You can use the DeleteImage tool [1], but it's first recommended to
> > backup your engine.
> >
> > To be on the safe side, here are some checks it's better to execute
> > before deleting:
> > - In order to locate the illegal image, you can run this command
> on the
> > host:
> > vdsm-tool dump-volume-chains 
> 
> Ok, that is the relevant part of the output:
> 
> image:    2fd9b340-14ce-42cd-a880-8f75eb3b72e7
> 
>              - 19fa612d-2f93-46a5-93e7-c74afc2937fa
>                status: OK, voltype: INTERNAL, format: COW, legality:
> LEGAL, type: SPARSE, capacity: 53687091200, truesize: 45902462976
> 
>              - e77e2773-eecb-46a6-87c7-14df14f7d95b
>                status: OK, voltype: LEAF, format: COW, legality: LEGAL,
> type: SPARSE, capacity: 53687091200, truesize: 27917287424
> 
> So I have on storage two images, first one is a snapshot, second one is
> Active VM.
> 
> Being the VM up and running I think I could say that on storage the
> situation is consistent.
> 
> >
> > - It's also recommended to verify that the engine and vdsm are synced
> > about that image, once you've found it, by running this command on the
> > engine:
> > SELECT *
> >      FROM images_storage_domain_view images_storage_domain_view
> >      WHERE image_group_id = ;
> >
> 
> That's the point: engine (database) sees 3 images, whilst vdsm sees
> only 2.
> 
> And this is output of:
> 
> select
> 
> image_guid,parentid,imagestatus,vm_snapshot_id,volume_type,volume_format,active
> from images where image_group_id='image-group-id';
> 
>               image_guid              |               parentid
>      | imagestatus |            vm_snapshot_id            | volume_type
> | volume_format | active
> 
> --+--+-+--+-+---+
>  6180c2e8-141a-4126-bcb1-5af5caa98175 |
> 19fa612d-2f93-46a5-93e7-c74afc2937fa |           1 |
> 281a4331-89fa-4544-b6ab-22c0e5ac6459 |           2 |             4 | f
>  19fa612d-2f93-46a5-93e7-c74afc2937fa |
> ---- |           4 |
> 6488f4c8-efc4-43df-aafc-497fb7d51fbb |           2 |             4 | f
>  e77e2773-eecb-46a6-87c7-14df14f7d95b |
> 6180c2e8-141a-4126-bcb1-5af5caa98175 |           1 |
> 59f69d6f-f300-45e4-8487-1fe4368a5933 |           2 |             4 | t
> 
> So there is in the database an image (the one with image-guid
> "6180c2e8-141a-4126-bcb1-5af5caa98175") not existing on storage.
> 
> > [1]
> > DeleteImage tool:
> > SELECT DeleteImage('image-id');
> >
> >     DELETE
> >     FROM images
> >     WHERE image_guid = v_image_guid;
> >
> 
> I think it could not be enough, I think I should adjust parentship
> relations in "images" table.
> 
> Just looking at that table it seems not so difficult, but: is it
> sufficient? Is it safe?
> 
> Regards,
> Giulio
> 
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[ovirt-users] Re: Cannot delete snapshot

2021-04-22 Thread Shani Leviim

Since 6180c2e8-141a-4126-bcb1-5af5caa98175 doesn't exist on the VDSM, it
should be removed from the DB,
and since it's the parent id for image
e77e2773-eecb-46a6-87c7-14df14f7d95b, it also should be changed.
Something like this:
UPDATE images set parentid = '19fa612d-2f93-46a5-93e7-c74afc2937fa' where
image_guid = 'e77e2773-eecb-46a6-87c7-14df14f7d95b';

Then you can remove the 6180c2e8 image.

It will be safe if you'll have a backup before making any DB changes.


*Regards,*

*Shani Leviim*


On Thu, Apr 22, 2021 at 3:06 PM Giulio Casella  wrote:

>
>
> On 22/04/2021 13:20, Shani Leviim wrote:
> > Hi,
> > You can use the DeleteImage tool [1], but it's first recommended to
> > backup your engine.
> >
> > To be on the safe side, here are some checks it's better to execute
> > before deleting:
> > - In order to locate the illegal image, you can run this command on the
> > host:
> > vdsm-tool dump-volume-chains 
>
> Ok, that is the relevant part of the output:
>
> image:2fd9b340-14ce-42cd-a880-8f75eb3b72e7
>
>  - 19fa612d-2f93-46a5-93e7-c74afc2937fa
>status: OK, voltype: INTERNAL, format: COW, legality:
> LEGAL, type: SPARSE, capacity: 53687091200, truesize: 45902462976
>
>  - e77e2773-eecb-46a6-87c7-14df14f7d95b
>status: OK, voltype: LEAF, format: COW, legality: LEGAL,
> type: SPARSE, capacity: 53687091200, truesize: 27917287424
>
> So I have on storage two images, first one is a snapshot, second one is
> Active VM.
>
> Being the VM up and running I think I could say that on storage the
> situation is consistent.
>
> >
> > - It's also recommended to verify that the engine and vdsm are synced
> > about that image, once you've found it, by running this command on the
> > engine:
> > SELECT *
> >  FROM images_storage_domain_view images_storage_domain_view
> >  WHERE image_group_id = ;
> >
>
> That's the point: engine (database) sees 3 images, whilst vdsm sees only 2.
>
> And this is output of:
>
> select
>
> image_guid,parentid,imagestatus,vm_snapshot_id,volume_type,volume_format,active
> from images where image_group_id='image-group-id';
>
>   image_guid  |   parentid
>  | imagestatus |vm_snapshot_id| volume_type
> | volume_format | active
>
> --+--+-+--+-+---+
>  6180c2e8-141a-4126-bcb1-5af5caa98175 |
> 19fa612d-2f93-46a5-93e7-c74afc2937fa |   1 |
> 281a4331-89fa-4544-b6ab-22c0e5ac6459 |   2 | 4 | f
>  19fa612d-2f93-46a5-93e7-c74afc2937fa |
> ---- |   4 |
> 6488f4c8-efc4-43df-aafc-497fb7d51fbb |   2 | 4 | f
>  e77e2773-eecb-46a6-87c7-14df14f7d95b |
> 6180c2e8-141a-4126-bcb1-5af5caa98175 |   1 |
> 59f69d6f-f300-45e4-8487-1fe4368a5933 |   2 | 4 | t
>
> So there is in the database an image (the one with image-guid
> "6180c2e8-141a-4126-bcb1-5af5caa98175") not existing on storage.
>
> > [1]
> > DeleteImage tool:
> > SELECT DeleteImage('image-id');
> >
> > DELETE
> > FROM images
> > WHERE image_guid = v_image_guid;
> >
>
> I think it could not be enough, I think I should adjust parentship
> relations in "images" table.
>
> Just looking at that table it seems not so difficult, but: is it
> sufficient? Is it safe?
>
> Regards,
> Giulio
>
>
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[ovirt-users] Re: Cannot delete snapshot

2021-04-22 Thread Giulio Casella



On 22/04/2021 13:20, Shani Leviim wrote:
> Hi,
> You can use the DeleteImage tool [1], but it's first recommended to
> backup your engine.
> 
> To be on the safe side, here are some checks it's better to execute
> before deleting:
> - In order to locate the illegal image, you can run this command on the
> host:
> vdsm-tool dump-volume-chains 

Ok, that is the relevant part of the output:

image:2fd9b340-14ce-42cd-a880-8f75eb3b72e7

 - 19fa612d-2f93-46a5-93e7-c74afc2937fa
   status: OK, voltype: INTERNAL, format: COW, legality:
LEGAL, type: SPARSE, capacity: 53687091200, truesize: 45902462976

 - e77e2773-eecb-46a6-87c7-14df14f7d95b
   status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE, capacity: 53687091200, truesize: 27917287424

So I have on storage two images, first one is a snapshot, second one is
Active VM.

Being the VM up and running I think I could say that on storage the
situation is consistent.

> 
> - It's also recommended to verify that the engine and vdsm are synced
> about that image, once you've found it, by running this command on the
> engine:
> SELECT *
>      FROM images_storage_domain_view images_storage_domain_view
>      WHERE image_group_id = ;
> 

That's the point: engine (database) sees 3 images, whilst vdsm sees only 2.

And this is output of:

select
image_guid,parentid,imagestatus,vm_snapshot_id,volume_type,volume_format,active
from images where image_group_id='image-group-id';

  image_guid  |   parentid
 | imagestatus |vm_snapshot_id| volume_type
| volume_format | active
--+--+-+--+-+---+
 6180c2e8-141a-4126-bcb1-5af5caa98175 |
19fa612d-2f93-46a5-93e7-c74afc2937fa |   1 |
281a4331-89fa-4544-b6ab-22c0e5ac6459 |   2 | 4 | f
 19fa612d-2f93-46a5-93e7-c74afc2937fa |
---- |   4 |
6488f4c8-efc4-43df-aafc-497fb7d51fbb |   2 | 4 | f
 e77e2773-eecb-46a6-87c7-14df14f7d95b |
6180c2e8-141a-4126-bcb1-5af5caa98175 |   1 |
59f69d6f-f300-45e4-8487-1fe4368a5933 |   2 | 4 | t

So there is in the database an image (the one with image-guid
"6180c2e8-141a-4126-bcb1-5af5caa98175") not existing on storage.

> [1]
> DeleteImage tool:
> SELECT DeleteImage('image-id');
> 
>     DELETE
>     FROM images
>     WHERE image_guid = v_image_guid;
> 

I think it could not be enough, I think I should adjust parentship
relations in "images" table.

Just looking at that table it seems not so difficult, but: is it
sufficient? Is it safe?

Regards,
Giulio
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[ovirt-users] Re: Cannot delete snapshot

2021-04-22 Thread Shani Leviim

Hi,
You can use the DeleteImage tool [1], but it's first recommended to backup
your engine.

To be on the safe side, here are some checks it's better to execute before
deleting:
- In order to locate the illegal image, you can run this command on the
host:
vdsm-tool dump-volume-chains 

- It's also recommended to verify that the engine and vdsm are synced about
that image, once you've found it, by running this command on the engine:
SELECT *
 FROM images_storage_domain_view images_storage_domain_view
 WHERE image_group_id = ;

[1]
DeleteImage tool:
SELECT DeleteImage('image-id');

DELETE
FROM images
WHERE image_guid = v_image_guid;



*Regards,*

*Shani Leviim*


On Wed, Apr 21, 2021 at 1:17 PM Giulio Casella  wrote:

> I tried, with no luck. Giving "disk snapshot id" as a parameter to that
> psql procedure nothing happened. Giving the "vm_snapshot_id" as found in
> the "images" table made the snapshot disappear from the gui, but not
> from the "images" table.
>
> SO I decided to look into DeleteSnapshot procedure, that resolve as:
>
> DELETE FROM snapshots WHERE snapshot_id = v_snapshot_id;
>
> It only acts on the "snapshots" table, and not on the "image" table,
> where the parentship between snapshots is still wrong.
>
> How safe is to manually modify "images" table and set correct parentship?
>
>
>
>
>
> On 20/04/2021 15:56, Shani Leviim wrote:
> > Thanks, Ritesh.
> >
> > In order to delete that snapshot, run this command on psql:
> > SELECT DeleteSnapshot('snapshot-id');
> >
> > *Regards,
> > *
> > *Shani Leviim
> > *
> >
> >
> > On Tue, Apr 20, 2021 at 3:25 PM Ritesh Chikatwar  > > wrote:
> >
> > adding @Shani Leviim 
> >
> > On Tue, Apr 20, 2021 at 5:35 PM Thomas Hoberg  > > wrote:
> >
> > I have used these tools to get rid of snapshots that wouldn't go
> > away any other way:
> >
> https://www.ovirt.org/develop/developer-guide/db-issues/helperutilities.html
> > <
> https://www.ovirt.org/develop/developer-guide/db-issues/helperutilities.html
> >
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> >
> >
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[ovirt-users] Re: Cannot delete snapshot

2021-04-21 Thread Giulio Casella

I tried, with no luck. Giving "disk snapshot id" as a parameter to that
psql procedure nothing happened. Giving the "vm_snapshot_id" as found in
the "images" table made the snapshot disappear from the gui, but not
from the "images" table.

SO I decided to look into DeleteSnapshot procedure, that resolve as:

DELETE FROM snapshots WHERE snapshot_id = v_snapshot_id;

It only acts on the "snapshots" table, and not on the "image" table,
where the parentship between snapshots is still wrong.

How safe is to manually modify "images" table and set correct parentship?





On 20/04/2021 15:56, Shani Leviim wrote:
> Thanks, Ritesh.
> 
> In order to delete that snapshot, run this command on psql:
> SELECT DeleteSnapshot('snapshot-id');
> 
> *Regards,
> *
> *Shani Leviim
> *
> 
> 
> On Tue, Apr 20, 2021 at 3:25 PM Ritesh Chikatwar  > wrote:
> 
> adding @Shani Leviim  
> 
> On Tue, Apr 20, 2021 at 5:35 PM Thomas Hoberg  > wrote:
> 
> I have used these tools to get rid of snapshots that wouldn't go
> away any other way:
> 
> https://www.ovirt.org/develop/developer-guide/db-issues/helperutilities.html
> 
> 
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[ovirt-users] Re: Cannot delete snapshot

2021-04-20 Thread Shani Leviim

Thanks, Ritesh.

In order to delete that snapshot, run this command on psql:
SELECT DeleteSnapshot('snapshot-id');


*Regards,*

*Shani Leviim*


On Tue, Apr 20, 2021 at 3:25 PM Ritesh Chikatwar 
wrote:

> adding @Shani Leviim 
>
> On Tue, Apr 20, 2021 at 5:35 PM Thomas Hoberg  wrote:
>
>> I have used these tools to get rid of snapshots that wouldn't go away any
>> other way:
>>
>> https://www.ovirt.org/develop/developer-guide/db-issues/helperutilities.html
>> ___
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>>
>
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[ovirt-users] Re: Cannot delete snapshot

2021-04-20 Thread Ritesh Chikatwar

adding @Shani Leviim 

On Tue, Apr 20, 2021 at 5:35 PM Thomas Hoberg  wrote:

> I have used these tools to get rid of snapshots that wouldn't go away any
> other way:
>
> https://www.ovirt.org/develop/developer-guide/db-issues/helperutilities.html
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[ovirt-users] Re: Cannot delete snapshot

2021-04-20 Thread Thomas Hoberg

I have used these tools to get rid of snapshots that wouldn't go away any other 
way:
https://www.ovirt.org/develop/developer-guide/db-issues/helperutilities.html
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[ovirt-users] Re: Cannot delete snapshot

2021-04-20 Thread Giulio Casella

Hi Nir,
in bugzilla I see it could be a bug, so I'm waiting for software update
to fix it.
In the meanwhile is there some fix I can do on the database? The VM is
working fine, but I cannot operate with snapshots, and my backup is stuck...

TIA,
Giulio Casella

On 12/04/2021 16:54, Giulio Casella wrote:
> Hi,
> a colleague has submitted a bugzilla:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1948599
> 
> Regards,
> Giulio Casella
> 
> On 12/04/2021 14:33, Nir Soffer wrote:
>> On Mon, Apr 12, 2021 at 11:19 AM Giulio Casella  wrote:
>>>
>>> Hi,
>>> I'm having (another) issue working with snapshots.
>>>
>>> Since a few days my backup system (storware vprotect) cannot delete a
>>> snapshot. Message reported by SPM is:
>>>
>>> HSMGetAllTasksStatusesVDS failed: value=Volume does not exist:
>>> ('6180c2e8-141a-4126-bcb1-5af5caa98175',) abortedcode=201
>>>
>>> Other snapshots from other VMs are working fine (created and deleted as
>>> needed).
>>>
>>> I verified it, I can reach on SPM filesystem other snapshots from the
>>> same VM, but that one doesn't exist.
>>>
>>> I suspect that during normal backup management that snapshot has been
>>> correctly removed from file system, but still live in ovirt database.
>>>
>>> I'm pretty sure vProtect use ovirt API to operate, it doesn't directly
>>> interact with ovirt database. That's why I'm talking to you and not to
>>> storware guys.
>>>
>>> Is there a (safe) way to get rid of that snapshot?
>>
>> If the snapshot was already removed, ovirt should detect this and
>> complete the operation successfully.
>>
>> Please file ovirt bug for this, and attach engine and vdsm logs showing
>> the effected snapshot and disk snapshot id.
>>
>> You can get find the snapshot id is the UI. You can see the disk snapshot
>> id in vm > snapshots > disks > disk id
>>
>> Then grep engine and vdsm log for the disk id an attach all the logs
>> mentioning this disk id.
>>
>> It will be also useful to get a database dump so we can see what engine
>> knows about this snapshot.
>>
>> Benny, can  you recommend some queries to extract relevant info?
>>
>> Nir
>>
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[ovirt-users] Re: Cannot delete snapshot

2021-04-12 Thread Giulio Casella

Hi,
a colleague has submitted a bugzilla:

https://bugzilla.redhat.com/show_bug.cgi?id=1948599

Regards,
Giulio Casella

On 12/04/2021 14:33, Nir Soffer wrote:
> On Mon, Apr 12, 2021 at 11:19 AM Giulio Casella  wrote:
>>
>> Hi,
>> I'm having (another) issue working with snapshots.
>>
>> Since a few days my backup system (storware vprotect) cannot delete a
>> snapshot. Message reported by SPM is:
>>
>> HSMGetAllTasksStatusesVDS failed: value=Volume does not exist:
>> ('6180c2e8-141a-4126-bcb1-5af5caa98175',) abortedcode=201
>>
>> Other snapshots from other VMs are working fine (created and deleted as
>> needed).
>>
>> I verified it, I can reach on SPM filesystem other snapshots from the
>> same VM, but that one doesn't exist.
>>
>> I suspect that during normal backup management that snapshot has been
>> correctly removed from file system, but still live in ovirt database.
>>
>> I'm pretty sure vProtect use ovirt API to operate, it doesn't directly
>> interact with ovirt database. That's why I'm talking to you and not to
>> storware guys.
>>
>> Is there a (safe) way to get rid of that snapshot?
> 
> If the snapshot was already removed, ovirt should detect this and
> complete the operation successfully.
> 
> Please file ovirt bug for this, and attach engine and vdsm logs showing
> the effected snapshot and disk snapshot id.
> 
> You can get find the snapshot id is the UI. You can see the disk snapshot
> id in vm > snapshots > disks > disk id
> 
> Then grep engine and vdsm log for the disk id an attach all the logs
> mentioning this disk id.
> 
> It will be also useful to get a database dump so we can see what engine
> knows about this snapshot.
> 
> Benny, can  you recommend some queries to extract relevant info?
> 
> Nir
> 
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[ovirt-users] Re: Cannot delete snapshot

2021-04-12 Thread Nir Soffer

On Mon, Apr 12, 2021 at 11:19 AM Giulio Casella  wrote:
>
> Hi,
> I'm having (another) issue working with snapshots.
>
> Since a few days my backup system (storware vprotect) cannot delete a
> snapshot. Message reported by SPM is:
>
> HSMGetAllTasksStatusesVDS failed: value=Volume does not exist:
> ('6180c2e8-141a-4126-bcb1-5af5caa98175',) abortedcode=201
>
> Other snapshots from other VMs are working fine (created and deleted as
> needed).
>
> I verified it, I can reach on SPM filesystem other snapshots from the
> same VM, but that one doesn't exist.
>
> I suspect that during normal backup management that snapshot has been
> correctly removed from file system, but still live in ovirt database.
>
> I'm pretty sure vProtect use ovirt API to operate, it doesn't directly
> interact with ovirt database. That's why I'm talking to you and not to
> storware guys.
>
> Is there a (safe) way to get rid of that snapshot?

If the snapshot was already removed, ovirt should detect this and
complete the operation successfully.

Please file ovirt bug for this, and attach engine and vdsm logs showing
the effected snapshot and disk snapshot id.

You can get find the snapshot id is the UI. You can see the disk snapshot
id in vm > snapshots > disks > disk id

Then grep engine and vdsm log for the disk id an attach all the logs
mentioning this disk id.

It will be also useful to get a database dump so we can see what engine
knows about this snapshot.

Benny, can  you recommend some queries to extract relevant info?

Nir
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[ovirt-users] Re: Cannot delete snapshot

[ovirt-users] Re: Cannot delete snapshot

[ovirt-users] Re: Cannot delete snapshot

[ovirt-users] Re: Cannot delete snapshot

[ovirt-users] Re: Cannot delete snapshot

[ovirt-users] Re: Cannot delete snapshot

[ovirt-users] Re: Cannot delete snapshot

[ovirt-users] Re: Cannot delete snapshot

[ovirt-users] Re: Cannot delete snapshot

[ovirt-users] Re: Cannot delete snapshot

[ovirt-users] Re: Cannot delete snapshot

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