I was able to get vm.conf back for HE hosts by restoring old OVF stores and manually replacing the uids of volume and image in the files.

Remains the fact OVF image files on disk are not created or updated automatically... but for this I created a bug ticket.

Thanks for all the help!

Op do 21 apr. 2016 om 09:54 schreef Paul Groeneweg | Pazion <paul@pazion.nl>:
Yesterday evening I have restarted a host.
I put hosted engine to global maintenance.
I upgraded to 3.6.5
The problem remained. 

As explained the GUI says it created the OVF stores ( they show with status illegal ).
On file level there are no OVF folders created in the images folder.
So the OVF not being updated and now not being created on file seem quite related, but as files have right permissions and other images in the hosted engine folder are ok, I don't think NFS is the issue.
A wild guess might be the colon in the folder name that has to be escaped?

My biggest concern for now is if my hosted engine goes down.
On the hosts not running the hostedengine now, the vm.conf is replaced by the ovirt-ha-agent with file containing 'None', make it impossible to restart the hosted-engine.
Where is this 'falling back to initial vm.conf' file? Maybe I can change it with current one and remain be safe with hosted engine shutdown/restart





Op do 21 apr. 2016 om 09:46 schreef Maor Lipchuk <mlipchuk@redhat.com>:
>From the logs (see [1]) it looks like you encountered the following bug:

Simone, can u confirm it is the same case mentioned in the bug, is there any workaround you can suggest not getting those errors any more (Maybe move the Host to Maintenance-Mode and restart of the hypervisor as suggested in the bug or  upgrade VDSM ?)

[1]
MainThread::INFO::2016-04-20 17:14:02,500::hosted_engine::688::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images) Reloading vm.conf from the shared storage domain
MainThread::INFO::2016-04-20 17:14:02,500::config::205::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file) Trying to get a fresher copy of vm configuration from the OVF_STORE
MainThread::WARNING::2016-04-20 17:14:02,807::ovf_store::104::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan) Unable to find OVF_STORE
MainThread::ERROR::2016-04-20 17:14:02,873::config::234::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file) Unable to get vm.conf from OVF_STORE, falling back to initial vm.conf

Regards,
Maor

On Wed, Apr 20, 2016 at 6:21 PM, Paul Groeneweg | Pazion <paul@pazion.nl> wrote:
The logs are not from the machine where the hosted engine is running on, but from the SPM.

Op wo 20 apr. 2016 om 17:19 schreef Paul Groeneweg | Pazion <paul@pazion.nl>:
Hereby the logs.


Op wo 20 apr. 2016 om 17:11 schreef Maor Lipchuk <mlipchuk@redhat.com>:
Hi Paul,

Can u please attach the engine and VDSM logs with those failures to check the origin of those failures

Thanks,
Maor

On Wed, Apr 20, 2016 at 6:06 PM, Paul Groeneweg | Pazion <paul@pazion.nl> wrote:
Looks like the system does try recreate the OVF :-) 
Too bad this failed again...


Failed to create OVF store disk for Storage Domain hostedengine_nfs.
The Disk with the id b6f34661-8701-4f82-a07c-ed7faab4a1b8 might be removed manually for automatic attempt to create new one. 
OVF updates won't be attempted on the created disk.

And on the hosted storage disk tab : http://screencast.com/t/ZmwjsGoQ1Xbp






Op wo 20 apr. 2016 om 09:17 schreef Paul Groeneweg | Pazion <paul@pazion.nl>:
I have added a ticket: https://bugzilla.redhat.com/show_bug.cgi?id=1328718

Looking forward to solve!  ( trying to providing as much info as required ).

For the short term, wwhat do I need to restore/rollback to get the OVF_STORE back in the Web GUI? is this all db?



Op wo 20 apr. 2016 om 09:04 schreef Paul Groeneweg | Pazion <paul@pazion.nl>:
Yes I removed them also from the web interface.
Cen I recreate these or how can I restore?

Op wo 20 apr. 2016 om 09:01 schreef Roy Golan <rgolan@redhat.com>:
On Wed, Apr 20, 2016 at 9:05 AM, Paul Groeneweg | Pazion <paul@pazion.nl> wrote:
Hi Roy,

What do you mean with a RFE , submit a bug ticket?

Yes please. https://bugzilla.redhat.com/enter_bug.cgi?product=oVirt

 
Here is what I did:

I removed the OVF disks as explained from the hosted engine/storage.
I started another server, tried several things like putting to maintenance and reinstalling, but I keep getting:

Apr 20 00:18:00 geisha-3 ovirt-ha-agent: WARNING:ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore:Unable to find OVF_STORE
Apr 20 00:18:00 geisha-3 journal: ovirt-ha-agent ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config ERROR Unable to get vm.conf from OVF_STORE, falling back to initial vm.conf
Apr 20 00:18:00 geisha-3 ovirt-ha-agent: ERROR:ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config:Unable to get vm.conf from OVF_STORE, falling back to initial vm.conf
Apr 20 00:18:00 geisha-3 journal: ovirt-ha-agent ovirt_hosted_engine_ha.agent.agent.Agent ERROR Error: ''Configuration value not found: file=/var/run/ovirt-hosted-engine-ha/vm.conf, key=memSize'' - trying to restart agent

Fact it can't find the OVF store seems logical, but now the /var/run/ovirt-hosted-engine-ha/vm.conf is replace with a file conatining only "None".
I tried to set file readonly ( chown root ), but this only threw an error about file not writable, tried different path, but nothing helped.
So I am afraid to touch the other running hosts, as same might happen there and I am unable to start hosted engine again.

I thought OVF would be created automatically again if it is missing, but it isn't...
Can I trigger this OVF, or add it somehow manually? Would deleting the whole hosted_storage trigger an auto import again including OVF?

If this provides no solution, I guess, I have to restore the removed OVF store. Would a complete database restore + restoring folder images/<OVF_STORE_ID> be sufficient? 
Or where is the information about the OVF stores the Web GUI shows stored?


Did you remove it also from the engine via the webadmin or REST? storage tab -> click the hosted_storage domain -> disks subtab -> right click remove the failing ovf
 
Looking forward to resolve this OVF store issue.

Thanks in advance!!!



Op di 19 apr. 2016 om 10:31 schreef Paul Groeneweg | Pazion <paul@pazion.nl>:
Hi Roy,

Thanks for this explanation. I will dive into this evening. ( and make a backup first :-) )

Normally the hosted engine only creates 1 ovf disk for the hosted storage?

Thanks for the help.

Op di 19 apr. 2016 om 10:22 schreef Roy Golan <rgolan@redhat.com>:
On Mon, Apr 18, 2016 at 10:05 PM, Paul Groeneweg | Pazion <paul@pazion.nl> wrote:
I am still wondering about the OVF disk ( and event error ) on my hosted storage domain.

My hostedstorage ovf disks ( http://screencast.com/t/AcdqmJWee )  are not being updated ( what I understood is they should be regularly updated ). 

So I wonder, maybe I can remove these OVF disks and they are recreated automatically? ( Similar when removing the hosted storage domain it was added automatically again )

And for this NFS storage domain, is it normal to have 2 OVF disks?

Really looking for a way get these OVF disks right.



Hi Paul,

What you can do to remove them is to run this sql statement at your setup

```sql
-- first make sure this is the disk, dates are taken from your screenshot

SELECT ovf_disk_id, image_guid, imagestatus, _create_date FROM images, storage_domains_ovf_info where ovf_disk_id = images.image_group_id and _create_date > '2016-05-01 11:11:29' and _create_date < '2016-05-01 11:11:31';

-- now delete this disk

DELETE FROM  storage_domains_ovf_info where ovf_disk_id = %what was found in the last query%'
```

Now you can right-click and remove this disk.

Since the disk of the ovirt-engine resides on the hosted_storage domain we can't put this domain into maintenance and fix those kind of issues. There for I would like you to kindly open an RFE and mention you're scenario so we would supply a way to do this kind of operations in a safe way.

Maor thanks for the help and reference.


Op ma 4 apr. 2016 om 09:54 schreef Paul Groeneweg | Pazion <paul@pazion.nl>:
I'd like to add:

- There are 2 OVF stores in my hosted_storage ( hostedengine_nfs ).
- I checked creation time, they are both created around the same time http://screencast.com/t/hbXQFlou 

So hopefully there is some way to update hosted storage sp it can be updated.

Op do 31 mrt. 2016 om 15:41 schreef Maor Lipchuk <mlipchuk@redhat.com>:
[Adding Roy to the thread]
Roy,

Can you please share your insight regarding the hosted engine behavior.
It looks that one of the OVF_STORE disks is not valid and I think that detach/attach of the storage domain might fix the audit log errors.
The question is, if it is possible to do so in hosted engine environment.

Regards,
Maor

On Thu, Mar 31, 2016 at 4:14 PM, Paul Groeneweg | Pazion <paul@pazion.nl> wrote:


This storage domain is my hosted engine storage domain. So I should put it to maintenance and then detach? http://screencast.com/t/kjgNpI7fQ 

Am I still able to use the hosed engine ( web interface) when this stoarge domain is in maintenance and detached?

As I don't want to risk detaching hosted storage storage domain and as a results breaking my whole setup.





Op do 31 mrt. 2016 om 15:07 schreef Maor Lipchuk <mlipchuk@redhat.com>:
Have you already tried to detach and attach the Storage Domain?

On Thu, Mar 31, 2016 at 3:11 PM, Paul Groeneweg | Pazion <paul@pazion.nl> wrote:
Hi Maor,

I am refering to the eventlog, where these ovf errors appear every hour and fill up my eventlog




Op do 31 mrt. 2016 om 14:07 schreef Maor Lipchuk <mlipchuk@redhat.com>:
Hi Paul,

Which problem are you referring, the remove of OVF_STORE disks or the audit log warning?
In the screencast I can see that the Storage Domain is active but I didn't notice any audit log errors.

Regards,
Maor

On Thu, Mar 31, 2016 at 2:38 PM, Paul Groeneweg | Pazion <paul@pazion.nl> wrote:
Hi Maor,

The 3.6.4 did not solve the problem.

Any idea how to fix this issue?
I believe it has something todo with the status of hosted_storage ( 1st entry )  http://screencast.com/t/vCx0CQiXm 

Op za 26 mrt. 2016 om 18:08 schreef Maor Lipchuk <mlipchuk@redhat.com>:
Hi Paul,

Can you please update whether the upgrade for 3.6.4 has helped.
Regarding the OVF_STORE disks, those disks should not be deleted since deleting them might reflect on the Disaster Recovery scenarios

Regards,
Maor


On Thu, Mar 24, 2016 at 10:10 PM, Paul Groeneweg | Pazion <paul@pazion.nl> wrote:
I believe my problem is related to this bug https://bugzilla.redhat.com/show_bug.cgi?id=1303316

As you can see in the screenshot the hostedengine storage is unassigned and so both ovf_stores are OK, but not linked and therefore  can't be updated?!

So for now I guess I'll wait for update 3.6.4 and cross my fingers and updates solves the event log error.

Op do 24 mrt. 2016 om 20:15 schreef Paul Groeneweg | Pazion <paul@pazion.nl>:
I checked, the OVf, but I can only remove the OVF.


What happens when I remove them, is it safe?

I checked agent.log and do not see the errors there....

MainThread::INFO::2016-03-24 20:12:28,154::image::116::ovirt_hosted_engine_ha.lib.image.Image::(prepare_images) Preparing images

MainThread::INFO::2016-03-24 20:12:28,811::hosted_engine::684::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images) Reloading vm.conf from the shared storage domain

MainThread::INFO::2016-03-24 20:12:28,811::config::205::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file) Trying to get a fresher copy of vm configuration from the OVF_STORE

MainThread::INFO::2016-03-24 20:12:28,936::ovf_store::100::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan) Found OVF_STORE: imgUUID:18c50ea6-4654-4525-b241-09e15acf5e99, volUUID:2f2ccb59-a3f3-43bf-87eb-53595af01cf5

MainThread::INFO::2016-03-24 20:12:29,147::ovf_store::100::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan) Found OVF_STORE: imgUUID:6e14348b-af7a-49bc-9af2-8b703c17a53d, volUUID:fabdd6f4-b8d6-4ffe-889c-df86b34619ca

MainThread::INFO::2016-03-24 20:12:29,420::ovf_store::109::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(getEngineVMOVF) Extracting Engine VM OVF from the OVF_STORE

MainThread::INFO::2016-03-24 20:12:29,580::ovf_store::116::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(getEngineVMOVF) OVF_STORE volume path: /rhev/data-center/mnt/hostedstorage.pazion.nl:_opt_hosted-engine/88b69eba-ef4f-4dbe-ba53-20dadd424d0e/images/6e14348b-af7a-49bc-9af2-8b703c17a53d/fabdd6f4-b8d6-4ffe-889c-df86b34619ca 

MainThread::INFO::2016-03-24 20:12:29,861::config::225::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file) Found an OVF for HE VM, trying to convert

MainThread::INFO::2016-03-24 20:12:29,865::config::230::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file) Got vm.conf from OVF_STORE

MainThread::INFO::2016-03-24 20:12:29,997::hosted_engine::462::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(start_monitoring) Current state EngineUp (score: 3400)


So leaves me wondering if I should worry about the errors in the event log.




Op do 24 mrt. 2016 om 16:18 schreef Paul Groeneweg | Pazion <paul@pazion.nl>:

These OVF stores are created on my hosted-engine storage instance. I did not found any reference in the hosted-engine.conf, so you are sure they can't be deleted?

So it holds only info about the hosted-engine disk? So when detaching, do I have any risk destroying my hosted-engine?

I can just detach them in this screen: http://screencast.com/t/ymnzsNHj7e and then re-attach?

I check file permissions, but this looked good compared to the other images. So really strange this eventlog.

Regards,
Paul


Op do 24 mrt. 2016 om 10:01 schreef Maor Lipchuk <mlipchuk@redhat.com>:
Met vriendelijke groeten,

Paul Groeneweg
Pazion
Webdevelopment  -  Hosting  -  Apps

M +31 614 277 577

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On Thu, Mar 24, 2016 at 12:12 AM, Paul Groeneweg | Pazion <paul@pazion.nl> wrote:

After the 3.6 updates ( which didn't went without a hitch )

I get the following errors in my event log: 

Failed to update OVF disks 18c50ea6-4654-4525-b241-09e15acf5e99, OVF data isn't updated on those OVF stores (Data Center Default, Storage Domain hostedengine_nfs).

VDSM command failed: Could not acquire resource. Probably resource factory threw an exception.: ()


When I check on file there is some data, but not updated: http://screencast.com/t/hbXQFlou

When I check in the web interface I see 2 OVF files listed. What are these for, can I delete them? http://screencast.com/t/ymnzsNHj7e 

Hopefully someone knows what to do about these warnings/erros and whether I can delete the OVF files.

Best Regards,
Paul Groeneweg


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Hi Paul,

The OVF_STORE disks are disks which preserve all the VMs and Templates OVF data and are mostly use for disaster recovery scenarios.
Those disks can not be deleted.
Regarding the audit log which you got, can you try to detach and attach the Storage once again and let me know if you still get this even log.

Regards,
Maor