[ovirt-users] Re: Ovirt Manager HA

[Luca 'remix_tj' Lorenzetto]

Hello,

the solution is to use hosted-engine. This implements automatic HA for
the engine vm.

Luca

On Wed, Jun 10, 2020 at 8:22 AM Vijay Sachdeva via Users
 wrote:
>
> Hi All,
>
>
>
> Is there a documentation on creating Ovirt-Manager in HA or is it possible to 
> make the manager to run in HA environment. Since it seems to be a single 
> point of failure..!!
>
>
>
> Thanks
>
> Vijay Sachdeva
>
>
>
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Ma il problema è che i libri sono tutti sparsi sul pavimento"
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Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , 
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[ovirt-users] Ovirt Manager HA

[Vijay Sachdeva via Users]

Hi All,

 

Is there a documentation on creating Ovirt-Manager in HA or is it possible to 
make the manager to run in HA environment. Since it seems to be a single point 
of failure..!!

 

Thanks

Vijay Sachdeva

 

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[ovirt-users] Re: Deploy host engine error: The task includes an option with an undefined variable

[Yedidyah Bar David]

On Tue, Jun 9, 2020 at 10:47 PM Strahil Nikolov via Users
 wrote:
>
> Can you put something like this before the 'Parse server cpu list'  :
>
> -  name: Debug why parsing  fails
>   debug:
> msg:
> - "Loop is done over  {{ 
> server_cpu_list.json['values']['system_option_value'][0]['value'].split('; 
> ')|list|difference(['']) }}"
> - "Actual value of server_cpu_dict before the set_fact is {{ 
> server_cpu_dict }}"
>
>
> Note: e-mail clients can distort code. Don't copy/paste , but type the 
> example  from above.
>
> Best  Regards,
> Strahil Nikolov
>
> На 9 юни 2020 г. 19:34:07 GMT+03:00, "Angel R. Gonzalez" 
>  написа:
> >Hi all!
> >
> >I'm deploying a host engine in a host node with a 8x Intel(R) Xeon(R)
> >CPU E5410 @ 2.33GHz.
> >
> >The deploy proccess show the next message
> >
> >> [INFO]TASK [ovirt.hosted_engine_setup : Convert CPU model name]
> >> [ERROR]fatal: [localhost]: FAILED! => {"msg": "The task includes an
> >> option with an undefined variable. The error was: 'dict object' has
> >no
> >> attribute ''\n\nThe error appears to be in
> >>
> >'/usr/share/ansible/roles/ovirt.hosted_engine_setup/tasks/create_target_vm/01_create_target_hosted_engine_vm.yml':
> >
> >> line 105, column 15, but may\nbe elsewhere in the file depending on
> >> the exact syntax problem.\n\nThe offending line appears to be:\n\n -
> >> debug: var=server_cpu_dict\n ^ here\n\nThere appears to be both 'k=v'
> >
> >> shorthand syntax and YAML in this task. Only one syntax may be
> >used.\n"}
> >
> >The ansible deploy script in his 105 line show:
> >
> >> - name: Parse server CPU list
> >> set_fact:
> >>  server_cpu_dict: "{{ server_cpu_dict |
> >> combine({item.split(':')[1]: item.split(':')[3]}) }}"
> >> with_items: >-
> >>   {{
> >>
> >server_cpu_list.json['values']['system_option_value'][0]['value'].split(';
> >
> >> ')|list|difference(['']) }}
> >>   - debug: var=server_cpu_dict
> >
> >I don´t know ansible and i don't how to resolve this issue. Any idea?

Please check/share /var/log/ovirt-hosted-engine-setup/*. Search there, e.g.,
for server_cpu_list, server_cpu_dict.

Your case seems similar to a few others, discussed recently in this thread:

[ovirt-users] Issues deploying 4.4 with HE on new EPYC hosts

Can you please check it?

In particular, what OS are you using? Perhaps CentOS Stream?

What is the output of:

rpm -q qemu-kvm libvirt

?

Thanks and best regards,
--
Didi
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[ovirt-users] Re: Global Maintenance

[Yedidyah Bar David]

On Tue, Jun 9, 2020 at 8:03 PM Anton Louw  wrote:
>
>
>
> Hi Didi,
>
> I followed the below steps in order to move the HE to a standalone engine:
>
> Backup and remove Hosted Engine:
>
> 1. Backup Hosted Engine (engine-backup --scope=all --mode=backup --file=Full 
> --log=Log_Full)
> 2. Download the backup files from HE using WinSCP
> 3. Enable global Maintenance (hosted-engine --set-maintenance --mode=global)
> 4. Power down hosted engine (hosted-engine --vm-shutdown)
>
> -
> Redeploy Hosted Engine:
>
> Build new CentOS VM in another environment
> *Same IP
> *Same name
> *Same resources
>
> 1. sudo yum install 
> https://resources.ovirt.org/pub/yum-repo/ovirt-release43.rpm
> 2. sudo yum install -y ovirt-engine
> 3. Copy backup files to newly deployed CentOS VM
> 4. engine-backup --mode=restore --file=Full --log=Log_Full --provision-db 
> --provision-dwh-db --restore-permissions
> 5. after restore has completed, run engine-setup
>
> Yes, I get “It seems that you are running your engine inside of the 
> hosted-engine VM and are not in "Global Maintenance" mode” error message when 
> running anything to do with engine-setup. In this case, I would like to 
> reconfigure the Websocket proxy.
>
> How will I go about updating the below:
>
> update vds_statistics set ha_global_maintenance=f;

Please remember that this isn't tested. Please thoroughly test first
on a test setup.

One way to do that is:

/usr/share/ovirt-engine/dbscripts/engine-psql.sh -c 'update
vds_statistics set ha_global_maintenance=f;'

As I said, it's probably best to do this while the engine is down, to
prevent caching issues etc.

Best regards,

>
> Thank you
>
> Anton Louw
> Cloud Engineer: Storage and Virtualization at Vox
> 
> T:  087 805  | D: 087 805 1572
> M: N/A
> E: anton.l...@voxtelecom.co.za
> A: Rutherford Estate, 1 Scott Street, Waverley, Johannesburg
> www.vox.co.za
>
>
>
>
>
>
>
>
> Disclaimer
>
> The contents of this email are confidential to the sender and the intended 
> recipient. Unless the contents are clearly and entirely of a personal nature, 
> they are subject to copyright in favour of the holding company of the Vox 
> group of companies. Any recipient who receives this email in error should 
> immediately report the error to the sender and permanently delete this email 
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>
>
>
> -Original Message-
> From: Yedidyah Bar David 
> Sent: 09 June 2020 15:19
> To: Anton Louw 
> Cc: users@ovirt.org
> Subject: Re: [ovirt-users] Global Maintenance
>
> On Tue, Jun 9, 2020 at 9:39 AM Anton Louw via Users  wrote:
> >
> >
> >
> > Hi Everybody,
> >
> >
> >
> > Just a bit of background. A couple of weeks back I moved my self-hosted 
> > engine to a standalone manager. Everything went smooth, my environment is 
> > up and running without any issues.
>
> How exactly did you do that?
>
> > Just one thing, when I want to reconfigure settings on my self-hosted 
> > engine, it says:
> >
> > “It seems that you are running your engine inside of the hosted-engine VM 
> > and are not in "Global Maintenance" mode”
>
> This message is in engine-setup, right?
>
> engine-setup's code is checking this by:
>
> /usr/share/ovirt-engine/setup/plugins/ovirt-engine-common/ovirt-engine/system/he.py
>
> SELECT vm_guid, run_on_vds
> FROM vms
> WHERE vm_name = %(HostedEngineVmName)s;
>
> where HostedEngineVmName is either the option of same name from vdc_options, 
> or 'HostedEngine' if missing. Then, where VdsId is 'run_on_vds' column of the 
> result of above:
>
> SELECT vds_id, ha_global_maintenance
> FROM vds_statistics
> WHERE vds_id = %(VdsId)s;
>
> So if this isn't a hosted-engine setup anymore, it should probably be safe to 
> do:
>
> update vds_statistics set ha_global_maintenance=f;
>
> and perhaps restart the engine (in case it also does similar checks itself 
> but caches this data).
>
> Please note that I didn't try this myself.
>
> >
> >
> >
> > When trying to enable global maintenance from my node, I also get the below:
> >
> >
> >
> > “Cannot connect to the HA daemon, please check the logs”
>
> This is expected, no? You say it's not a hosted-engine setup anymore.
>
> >
> >
> >
> > Is there something I missed when I moved my self-hosted engine to a 
> > standalone manager?
>
> Either Yes, or the procedure you followed is incomplete. If latter, please 
> file a bug about it. Thanks!
>
> Best regards,
> --
> Didi



-- 
Didi
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[ovirt-users] Re: What happens when shared storage is down?

[Vinícius Ferrão via Users]

> On 7 Jun 2020, at 08:34, Strahil Nikolov  wrote:
> 
> 
> 
> На 7 юни 2020 г. 1:58:27 GMT+03:00, "Vinícius Ferrão via Users" 
>  написа:
>> Hello,
>> 
>> This is a pretty vague and difficult question to answer. But what
>> happens if the shared storage holding the VMs is down or unavailable
>> for a period of time?
> Once  a  pending I/O is blocked, libvirt will pause the VM .
> 
>> I’m aware that a longer timeout may put the VMs on pause state, but how
>> this is handled? Is it a time limit? Requests limit? Who manages this?
> You got sanlock.service that notifies the engine when a storage domain is 
> unaccessible for  mode than 60s.
> 
> Libvirt also will pause  a  VM when a pending I/O cannot be done.
> 
>> In an event of self recovery of the storage backend what happens next?
> Usually the engine should resume the VM,  and from application perspective 
> nothing has happened.

Hmm thanks Strahil. I was thinking to upgrade the storage backend of one of my 
oVirt clusters without powering off the VM’s, just to be lazy.

The storage does not have dual controllers, so downtime is needed. I’m trying 
to understand what happens so I can evaluate this update without turning off 
the VMs.

>> Manual intervention is required? The VMs may be down or they just
>> continue to run? It depends on the guest OS running like in XenServer
>> where different scenarios may happen?
>> 
>> I’ve looked here:
>> https://www.ovirt.org/documentation/admin-guide/chap-Storage.html but
>> there’s nothing that goes about this question.
>> 
>> Thanks,
>> 
>> Sent from my iPhone

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[ovirt-users] Re: Cannot start ppc64le VM's

[Vinícius Ferrão via Users]

On 8 Jun 2020, at 07:43, Michal Skrivanek 
mailto:michal.skriva...@redhat.com>> wrote:



On 5 Jun 2020, at 20:23, Vinícius Ferrão 
mailto:fer...@versatushpc.com.br>> wrote:

Hi Michal

On 5 Jun 2020, at 04:39, Michal Skrivanek 
mailto:michal.skriva...@redhat.com>> wrote:



On 5 Jun 2020, at 08:19, Vinícius Ferrão via Users 
mailto:users@ovirt.org>> wrote:

Hello, I’m trying to run ppc64le VM’s on POWER9 but qemu-kvm fails complaining 
about NUMA issues:

that is not a line you should be looking at, it’s just a harmless warning.
I suppose it’s the other one, about spectre fixes

VM ppc64le.local.versatushpc.com.br 
is down with error. Exit message: internal error: qemu unexpectedly closed the 
monitor: 2020-06-05T06:16:10.716052Z qemu-kvm: warning: CPU(s) not present in 
any NUMA nodes: CPU 4 [core-id: 4], CPU 5 [core-id: 5], CPU 6 [core-id: 6], CPU 
7 [core-id: 7], CPU 8 [core-id: 8], CPU 9 [core-id: 9], CPU 10 [core-id: 10], 
CPU 11 [core-id: 11], CPU 12 [core-id: 12], CPU 13 [core-id: 13], CPU 14 
[core-id: 14], CPU 15 [core-id: 15] 2020-06-05T06:16:10.716067Z qemu-kvm: 
warning: All CPU(s) up to maxcpus should be described in NUMA config, ability 
to start up with partial NUMA mappings is obsoleted and will be removed in 
future 2020-06-05T06:16:11.155924Z qemu-kvm: Requested safe indirect branch 
capability level not supported by kvm, try cap-ibs=fixed-ibs.

Any idea of what’s happening?

I found some links, but I’m not sure if they are related or not:
https://bugzilla.redhat.com/show_bug.cgi?id=1732726
https://bugzilla.redhat.com/show_bug.cgi?id=1592648

yes, they look relevant if that’s the hw you have. We do use 
pseries-rhel7.6.0-sxxm machine type in 4.3 (not in 4.4. that would be the 
preferred solution, to upgrade).
If you don’t care about security you can also modify the machine type per VM 
(or in engine db for all VMs) to "pseries-rhel7.6.0"

I’m using an AC922 machine.

and is it oVirt  4.3 or 4.4?
Bug 1732726 is on RHEL 8, so relevant only for oVirt 4.4, i.e. you’d have to 
have a 4.3 cluster level?
if you really want to keep using -sxxm you need to modify it to add the extra 
flag the bug talks about

this shouldn’t be needed in 4.4 cluster level though

Hi Michal, I’m running 4.3.10. Not in 4.4 yet.

So the workaround would be add cap-ibs=fixed-ibs to VM parameters so sxxm would 
work? Where do I add this? Do you know?

Thanks.



In fact I can boot the VMs with pseries-rhel7.6.0 but not with 
pseries-rhel7.6.0-sxxm; how do you made pseries-rhel7.6.0-sxxm works on 4.3 
release?

# lscpu
Architecture:  ppc64le
Byte Order:Little Endian
CPU(s):128
On-line CPU(s) list:   0-127
Thread(s) per core:4
Core(s) per socket:16
Socket(s): 2
NUMA node(s):  6
Model: 2.2 (pvr 004e 1202)
Model name:POWER9, altivec supported
CPU max MHz:   3800.
CPU min MHz:   2300.
L1d cache: 32K
L1i cache: 32K
L2 cache:  512K
L3 cache:  10240K
NUMA node0 CPU(s): 0-63
NUMA node8 CPU(s): 64-127
NUMA node252 CPU(s):
NUMA node253 CPU(s):
NUMA node254 CPU(s):
NUMA node255 CPU(s):

Thank you for helping out.


Thanks,
michal

Thanks,

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[ovirt-users] Re: Deploy host engine error: The task includes an option with an undefined variable

[Strahil Nikolov via Users]

Can you put something like this before the 'Parse server cpu list'  :

-  name: Debug why parsing  fails
  debug:
msg:
- "Loop is done over  {{ 
server_cpu_list.json['values']['system_option_value'][0]['value'].split('; 
')|list|difference(['']) }}"
- "Actual value of server_cpu_dict before the set_fact is {{ 
server_cpu_dict }}"


Note: e-mail clients can distort code. Don't copy/paste , but type the example  
from above.

Best  Regards,
Strahil Nikolov

На 9 юни 2020 г. 19:34:07 GMT+03:00, "Angel R. Gonzalez" 
 написа:
>Hi all!
>
>I'm deploying a host engine in a host node with a 8x Intel(R) Xeon(R) 
>CPU E5410 @ 2.33GHz.
>
>The deploy proccess show the next message
>
>> [INFO]TASK [ovirt.hosted_engine_setup : Convert CPU model name]
>> [ERROR]fatal: [localhost]: FAILED! => {"msg": "The task includes an 
>> option with an undefined variable. The error was: 'dict object' has
>no 
>> attribute ''\n\nThe error appears to be in 
>>
>'/usr/share/ansible/roles/ovirt.hosted_engine_setup/tasks/create_target_vm/01_create_target_hosted_engine_vm.yml':
>
>> line 105, column 15, but may\nbe elsewhere in the file depending on 
>> the exact syntax problem.\n\nThe offending line appears to be:\n\n - 
>> debug: var=server_cpu_dict\n ^ here\n\nThere appears to be both 'k=v'
>
>> shorthand syntax and YAML in this task. Only one syntax may be
>used.\n"}
>
>The ansible deploy script in his 105 line show:
>
>> - name: Parse server CPU list
>>     set_fact:
>>  server_cpu_dict: "{{ server_cpu_dict | 
>> combine({item.split(':')[1]: item.split(':')[3]}) }}"
>>     with_items: >-
>>   {{ 
>>
>server_cpu_list.json['values']['system_option_value'][0]['value'].split(';
>
>> ')|list|difference(['']) }}
>>   - debug: var=server_cpu_dict
>
>I don´t know ansible and i don't how to resolve this issue. Any idea?
>
>Thanks in advance,
>
>Ángel González.
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[ovirt-users] Re: Global Maintenance

[Anton Louw via Users]

Hi Didi,

I followed the below steps in order to move the HE to a standalone engine:

Backup and remove Hosted Engine:

1. Backup Hosted Engine (engine-backup --scope=all --mode=backup --file=Full 
--log=Log_Full)
2. Download the backup files from HE using WinSCP
3. Enable global Maintenance (hosted-engine --set-maintenance --mode=global)
4. Power down hosted engine (hosted-engine --vm-shutdown)

-
Redeploy Hosted Engine:

Build new CentOS VM in another environment
*Same IP
*Same name
*Same resources

1. sudo yum install https://resources.ovirt.org/pub/yum-repo/ovirt-release43.rpm
2. sudo yum install -y ovirt-engine
3. Copy backup files to newly deployed CentOS VM
4. engine-backup --mode=restore --file=Full --log=Log_Full --provision-db 
--provision-dwh-db --restore-permissions
5. after restore has completed, run engine-setup

Yes, I get “It seems that you are running your engine inside of the 
hosted-engine VM and are not in "Global Maintenance" mode” error message when 
running anything to do with engine-setup. In this case, I would like to 
reconfigure the Websocket proxy.

How will I go about updating the below: 

update vds_statistics set ha_global_maintenance=f;

Thank you

-Original Message-
From: Yedidyah Bar David  
Sent: 09 June 2020 15:19
To: Anton Louw 
Cc: users@ovirt.org
Subject: Re: [ovirt-users] Global Maintenance

On Tue, Jun 9, 2020 at 9:39 AM Anton Louw via Users  wrote:
>
>
>
> Hi Everybody,
>
>
>
> Just a bit of background. A couple of weeks back I moved my self-hosted 
> engine to a standalone manager. Everything went smooth, my environment is up 
> and running without any issues.

How exactly did you do that?

> Just one thing, when I want to reconfigure settings on my self-hosted engine, 
> it says:
>
> “It seems that you are running your engine inside of the hosted-engine VM and 
> are not in "Global Maintenance" mode”

This message is in engine-setup, right?

engine-setup's code is checking this by:

/usr/share/ovirt-engine/setup/plugins/ovirt-engine-common/ovirt-engine/system/he.py

SELECT vm_guid, run_on_vds
FROM vms
WHERE vm_name = %(HostedEngineVmName)s;

where HostedEngineVmName is either the option of same name from vdc_options, or 
'HostedEngine' if missing. Then, where VdsId is 'run_on_vds' column of the 
result of above:

SELECT vds_id, ha_global_maintenance
FROM vds_statistics
WHERE vds_id = %(VdsId)s;

So if this isn't a hosted-engine setup anymore, it should probably be safe to 
do:

update vds_statistics set ha_global_maintenance=f;

and perhaps restart the engine (in case it also does similar checks itself but 
caches this data).

Please note that I didn't try this myself.

>
>
>
> When trying to enable global maintenance from my node, I also get the below:
>
>
>
> “Cannot connect to the HA daemon, please check the logs”

This is expected, no? You say it's not a hosted-engine setup anymore.

>
>
>
> Is there something I missed when I moved my self-hosted engine to a 
> standalone manager?

Either Yes, or the procedure you followed is incomplete. If latter, please file 
a bug about it. Thanks!

Best regards,
--
Didi


Anton Louw
Cloud Engineer: Storage and Virtualization
__
D: 087 805 1572 | M: N/A
A: Rutherford Estate, 1 Scott Street, Waverley, Johannesburg
anton.l...@voxtelecom.co.za

www.vox.co.za






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[ovirt-users] Deploy host engine error: The task includes an option with an undefined variable

[Angel R. Gonzalez]

Hi all!

I'm deploying a host engine in a host node with a 8x Intel(R) Xeon(R) 
CPU E5410 @ 2.33GHz.


The deploy proccess show the next message


[INFO]TASK [ovirt.hosted_engine_setup : Convert CPU model name]
[ERROR]fatal: [localhost]: FAILED! => {"msg": "The task includes an 
option with an undefined variable. The error was: 'dict object' has no 
attribute ''\n\nThe error appears to be in 
'/usr/share/ansible/roles/ovirt.hosted_engine_setup/tasks/create_target_vm/01_create_target_hosted_engine_vm.yml': 
line 105, column 15, but may\nbe elsewhere in the file depending on 
the exact syntax problem.\n\nThe offending line appears to be:\n\n - 
debug: var=server_cpu_dict\n ^ here\n\nThere appears to be both 'k=v' 
shorthand syntax and YAML in this task. Only one syntax may be used.\n"}


The ansible deploy script in his 105 line show:


- name: Parse server CPU list
    set_fact:
  server_cpu_dict: "{{ server_cpu_dict | 
combine({item.split(':')[1]: item.split(':')[3]}) }}"

    with_items: >-
  {{ 
server_cpu_list.json['values']['system_option_value'][0]['value'].split('; 
')|list|difference(['']) }}

  - debug: var=server_cpu_dict


I don´t know ansible and i don't how to resolve this issue. Any idea?

Thanks in advance,

Ángel González.



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[ovirt-users] Re: ovirt vm backup tool

[Jayme]

 I wrote a simple un-official ansible playbook to backup full VMs here:
https://github.com/silverorange/ovirt_ansible_backup -- it works great for
my use case, but it is more geared toward smaller environments.

For commercial software I'd take a look at vProtect (it's free for up to 10
VMs)

I've heard some rumblings about incremental backup support in 4.4 as some
others have suggested but don't have much knowledge on the subject.



On Tue, Jun 9, 2020 at 1:16 PM Gianluca Cecchi 
wrote:

> On Tue, Jun 9, 2020 at 5:24 PM Shani Leviim  wrote:
>
>> Hi Shashank,
>> You can use the new incremental backup feature, which available for a
>> tech preview for ovirt 4.4.
>>
>
> It seems it is not so; see this thread and errors received in 4.4 and
> latest answer from Nir:
>
> https://lists.ovirt.org/archives/list/users@ovirt.org/thread/CWLMCHTSWDNOLFUPPLOU7ORIVKHWD5GM/
>
> I too hoped to be able to test in 4.4. without going to master...
>
> Gianluca
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[ovirt-users] Re: ovirt vm backup tool

[Gianluca Cecchi]

On Tue, Jun 9, 2020 at 5:24 PM Shani Leviim  wrote:

> Hi Shashank,
> You can use the new incremental backup feature, which available for a tech
> preview for ovirt 4.4.
>

It seems it is not so; see this thread and errors received in 4.4 and
latest answer from Nir:
https://lists.ovirt.org/archives/list/users@ovirt.org/thread/CWLMCHTSWDNOLFUPPLOU7ORIVKHWD5GM/

I too hoped to be able to test in 4.4. without going to master...

Gianluca
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[ovirt-users] Re: ovirt vm backup tool

[Shani Leviim]

Hi Shashank,
You can use the new incremental backup feature, which available for a tech
preview for ovirt 4.4.
You can find the feature page here [1], although it requires some updating.

For more details, the session from DevConf 2020 conference is available
here [2]
Also, there's a Python SDK script for backup a VM using incremental backup
new API [3]

Adding Eyal and Nir for more insights/details
+Eyal Shenitzky   +Nir Soffer 

A former discussion on the users' list can be found here [4]

[1]
https://www.ovirt.org/develop/release-management/features/storage/incremental-backup.html
[2] https://www.youtube.com/watch?v=foyi1UyadEc
[3]
https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/backup_vm.py
[4]
https://lists.ovirt.org/archives/list/users@ovirt.org/message/XGCFWR6KXMFHGFZFIIA6PIV2534ZEEGK/


*Regards,*

*Shani Leviim*


On Tue, Jun 9, 2020 at 5:58 PM Ayansh Rocks 
wrote:

> Hi Guys,
>
> Can you please suggest a good backup tool for ovirt virtual machines..?
>
> Thanks
> Shashank
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[ovirt-users] ovirt vm backup tool

[Ayansh Rocks]

Hi Guys,

Can you please suggest a good backup tool for ovirt virtual machines..?

Thanks
Shashank
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[ovirt-users] Re: Global Maintenance

[Yedidyah Bar David]

On Tue, Jun 9, 2020 at 9:39 AM Anton Louw via Users  wrote:
>
>
>
> Hi Everybody,
>
>
>
> Just a bit of background. A couple of weeks back I moved my self-hosted 
> engine to a standalone manager. Everything went smooth, my environment is up 
> and running without any issues.

How exactly did you do that?

> Just one thing, when I want to reconfigure settings on my self-hosted engine, 
> it says:
>
> “It seems that you are running your engine inside of the hosted-engine VM and 
> are not in "Global Maintenance" mode”

This message is in engine-setup, right?

engine-setup's code is checking this by:

/usr/share/ovirt-engine/setup/plugins/ovirt-engine-common/ovirt-engine/system/he.py

SELECT vm_guid, run_on_vds
FROM vms
WHERE vm_name = %(HostedEngineVmName)s;

where HostedEngineVmName is either the option of same name from
vdc_options, or 'HostedEngine' if missing. Then, where VdsId is
'run_on_vds' column of the result of above:

SELECT vds_id, ha_global_maintenance
FROM vds_statistics
WHERE vds_id = %(VdsId)s;

So if this isn't a hosted-engine setup anymore, it should probably be
safe to do:

update vds_statistics set ha_global_maintenance=f;

and perhaps restart the engine (in case it also does similar checks
itself but caches this data).

Please note that I didn't try this myself.

>
>
>
> When trying to enable global maintenance from my node, I also get the below:
>
>
>
> “Cannot connect to the HA daemon, please check the logs”

This is expected, no? You say it's not a hosted-engine setup anymore.

>
>
>
> Is there something I missed when I moved my self-hosted engine to a 
> standalone manager?

Either Yes, or the procedure you followed is incomplete. If latter,
please file a bug about it. Thanks!

Best regards,
-- 
Didi
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[ovirt-users] Re: Power Management on IBM AC922 Power9 (ppc64le)

[Eli Mesika]

On Fri, Jun 5, 2020 at 7:32 AM Vinícius Ferrão via Users 
wrote:

> Hello,
>
> I would like to know how to enable Power Management on AC922 hardware from
> IBM. It’s ppc64le architecture and runs OpenBMC as manager.
>
> I only get Test failed: Internal JSON-RPC error when adding the infos with
> ipmilan on the engine. From the command line I can use ipmitool but without
> specifying any user. On the Engine I must specify an user. There’s no way
> to leave it blank.
>

Yes, oVirt requires that you will authenticate against the fencing card
although I see in the fence_ipmilan script man page that it has a
*auth *parameter
that can be set to *"auth=none" *to bypass this authentication, so maybe we
should enabled blank user/password if this flag is given in the options
field ...



>
> Thanks,
>
>
>
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[ovirt-users] Re: how to test incremental backup in 4.4

[Nir Soffer]

On Tue, Jun 9, 2020 at 11:51 AM Gianluca Cecchi
 wrote:
>
> On Tue, Jun 9, 2020 at 10:39 AM Joseph Goldman  wrote:
>>
>> I could be wrong but i believe you need to push libvirt / qemu to a newer 
>> release on your hosts to enable the feature. This may be a 4.3 only thing 
>> though.
>>
>
> I have 4.4 and currently on host:
> qemu-kvm-4.1.0-23.el8.1.x86_64
> libvirt-daemon-5.6.0-10.el8.x86_64

Too old, you need RHEL 8.2, best RHEL 8.2.1 nightly build.

Using ovirt-release-master.rpm:
dnf install http://resources.ovirt.org/pub/yum-repo/ovirt-release-master.rpm

You should get newer enough libvirt and qemu on CentOS 8.1, but it is not tested
with incremental backup.

It should work on Fedora 30 host, but Fedora 30 is EOL now. New enough
libvirt and
qemu are available in Fedora 31 and 32 (using virt-preview repo), but
installing oVirt
there is a challenge and I don't think anyone tested it yet.

> Possibly needed sw pieces will be only in 4.4.1?

4.4.1 will include important fixes and new features in oVirt, but it
will not help with libvirt
and qemu.

Nir
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[ovirt-users] Re: First ovirt 4.4 installation failing

[Paul-Erik Törrönen]

On 2020-06-09 11:26, Yedidyah Bar David wrote:
On Tue, Jun 9, 2020 at 10:23 AM Paul-Erik Törrönen  
wrote:
You can't eg. have a ed25519-only setup as the installation tries to 
use

RSA.



Thanks for this comment. Added a note for you on Wart's bug 1845271.


Thank you.


Do you think this is a significant limitation?


No, unless you get others requesting this particular support. I only 
stumbled across this as I am setting up my home network from scratch 
with a minimal ansible script collection which includes hardening the 
ssh.


Nonetheless it would be a good to mention it in documentation.

Poltsi
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[ovirt-users] Re: [Possible SPAM] Re: Re: how to test incremental backup in 4.4

[Joseph Goldman]

I have no idea the version numbers, i'm just referring to comments in 
the example backup_vm.py script


Note that this feature API is supported from version 4.3
but the feature is currently in tech-preview until libvirt will
release official release that contains the support for incremental
backup.
Using this example requires a special libvirt version supporting
incremental backup.

Given that previous poster also said its 'still' in tech preview on 
libvirt/qemu side, I assumed you might still need a special version of 
libvirt to enable the feature.


*From:* Gianluca Cecchi [mailto:gianluca.cec...@gmail.com]
*Sent:* Tuesday, June 9, 2020, 6:49 PM
*To:* Joseph Goldman
*Cc:* users
*Subject:* [Possible SPAM] Re: [ovirt-users] Re: how to test incremental 
backup in 4.4


On Tue, Jun 9, 2020 at 10:39 AM Joseph Goldman > wrote:


I could be wrong but i believe you need to push libvirt / qemu to
a newer release on your hosts to enable the feature. This may be a
4.3 only thing though.


I have 4.4 and currently on host:
qemu-kvm-4.1.0-23.el8.1.x86_64
libvirt-daemon-5.6.0-10.el8.x86_64

Possibly needed sw pieces will be only in 4.4.1?

Gianluca


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[ovirt-users] Re: how to test incremental backup in 4.4

[Gianluca Cecchi]

On Tue, Jun 9, 2020 at 10:39 AM Joseph Goldman  wrote:

> I could be wrong but i believe you need to push libvirt / qemu to a newer
> release on your hosts to enable the feature. This may be a 4.3 only thing
> though.
>
>
I have 4.4 and currently on host:
qemu-kvm-4.1.0-23.el8.1.x86_64
libvirt-daemon-5.6.0-10.el8.x86_64

Possibly needed sw pieces will be only in 4.4.1?

Gianluca
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[ovirt-users] Re: how to test incremental backup in 4.4

[Joseph Goldman]

I could be wrong but i believe you need to push libvirt / qemu to a 
newer release on your hosts to enable the feature. This may be a 4.3 
only thing though.


On 9/6/20 6:21 pm, Gianluca Cecchi wrote:
On Mon, Jun 8, 2020 at 1:53 PM Eyal Shenitzky > wrote:


Thank you!

We will be glad to have some feedback when you have some.

Please keep posted.


Just the first steps.

I enabled in engine the incremental backup feature and restarted 
engine service.

Created a CentOS 8.1 VM to backup, and updated it.
It has one qcow2 disk with flag of incremental backup enabled.

I configured another server to be sort of backup server.
Installed CentOS 8.1 + updates, then
dnf install https://resources.ovirt.org/pub/yum-repo/ovirt-release44.rpm
dnf update
dnf install python3-ovirt-engine-sdk4
dnf install ovirt-imageio-client

Copied backup_vm.py from the examples directory to the /root and tried 
a full backup


[root@c8-bck-server ~]# ./backup_vm.py full --engine-url 
https://ovirteng.mydomain --username admin@internal -c ca.pem 
--backup-dir /backup 80fd995d-63c7-4f2a-a4c2-0ddaf1a8389d

[   0.0 ] Starting full backup for VM 80fd995d-63c7-4f2a-a4c2-0ddaf1a8389d
Password:
Traceback (most recent call last):
  File "./backup_vm.py", line 490, in 
    main()
  File "./backup_vm.py", line 181, in main
    args.command(args)
  File "./backup_vm.py", line 195, in cmd_full
    backup = start_backup(connection, args)
  File "./backup_vm.py", line 312, in start_backup
    from_checkpoint_id=args.from_checkpoint_uuid
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/services.py", 
line 33584, in add

    return self._internal_add(backup, headers, query, wait)
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 
232, in _internal_add

    return future.wait() if wait else future
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 
55, in wait

    return self._code(response)
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 
229, in callback

    self._check_fault(response)
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 
132, in _check_fault

    self._raise_error(response, body)
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 
118, in _raise_error

    raise error
ovirtsdk4.Error: Fault reason is "Operation Failed". Fault detail is 
"[Cannot backup VM. Backup is not supported by the host 
(ovirt01.mydomain).]". HTTP response code is 409.

[root@c8-bck-server ~]#

What is the problem with the host?

Thanks,
Gianluca

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[ovirt-users] Re: First ovirt 4.4 installation failing

[Yedidyah Bar David]

On Tue, Jun 9, 2020 at 10:23 AM Paul-Erik Törrönen  wrote:
>
> On 2020-06-08 08:58, Yedidyah Bar David wrote:
> > I agree it's not detailed enough.
> > We have it briefly mentioned e.g. here:
> > https://www.ovirt.org/documentation/installing_ovirt_as_a_self-hosted_engine_using_the_cockpit_web_interface/#host-firewall-requirements_SHE_cockpit_deploy
> > For some reason it's marked "Optional", not sure why.
>
> I think it should also be pointed out that only certain keys are
> supported.
>
> You can't eg. have a ed25519-only setup as the installation tries to use
> RSA.

Thanks for this comment. Added a note for you on Wart's bug 1845271.

Do you think this is a significant limitation?

In theory, it should not be too hard to make the engine's PKI code
more flexible, allowing configuring it to use whatever algorithms
both openssl/m2crypto and Java support, but in reality this was never
requested. Only relevant change I recall was the request to change
from hash algo SHA1 to SHA256, several years ago (which we did, then,
unconditionally, still hardcoding sha256 in several places).

Thanks and best regards,
-- 
Didi
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[ovirt-users] Re: how to test incremental backup in 4.4

[Gianluca Cecchi]

On Mon, Jun 8, 2020 at 1:53 PM Eyal Shenitzky  wrote:

> Thank you!
>
> We will be glad to have some feedback when you have some.
>
> Please keep posted.
>
>
Just the first steps.

I enabled in engine the incremental backup feature and restarted engine
service.
Created a CentOS 8.1 VM to backup, and updated it.
It has one qcow2 disk with flag of incremental backup enabled.

I configured another server to be sort of backup server.
Installed CentOS 8.1 + updates, then
dnf install https://resources.ovirt.org/pub/yum-repo/ovirt-release44.rpm
dnf update
dnf install python3-ovirt-engine-sdk4
dnf install ovirt-imageio-client

Copied backup_vm.py from the examples directory to the /root and tried a
full backup

[root@c8-bck-server ~]# ./backup_vm.py full --engine-url
https://ovirteng.mydomain --username admin@internal -c ca.pem --backup-dir
/backup 80fd995d-63c7-4f2a-a4c2-0ddaf1a8389d
[   0.0 ] Starting full backup for VM 80fd995d-63c7-4f2a-a4c2-0ddaf1a8389d
Password:
Traceback (most recent call last):
  File "./backup_vm.py", line 490, in 
main()
  File "./backup_vm.py", line 181, in main
args.command(args)
  File "./backup_vm.py", line 195, in cmd_full
backup = start_backup(connection, args)
  File "./backup_vm.py", line 312, in start_backup
from_checkpoint_id=args.from_checkpoint_uuid
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/services.py", line
33584, in add
return self._internal_add(backup, headers, query, wait)
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 232,
in _internal_add
return future.wait() if wait else future
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 55,
in wait
return self._code(response)
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 229,
in callback
self._check_fault(response)
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 132,
in _check_fault
self._raise_error(response, body)
  File "/usr/lib64/python3.6/site-packages/ovirtsdk4/service.py", line 118,
in _raise_error
raise error
ovirtsdk4.Error: Fault reason is "Operation Failed". Fault detail is
"[Cannot backup VM. Backup is not supported by the host
(ovirt01.mydomain).]". HTTP response code is 409.
[root@c8-bck-server ~]#

What is the problem with the host?

Thanks,
Gianluca
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[ovirt-users] Re: Power Management on IBM AC922 Power9 (ppc64le)

[Martin Perina]

Hi Vinicius,

do you have at least one additional host in the same datacenter as your IBM
server (engine requires to have another host acting as fencing proxy)?

If yes, then please check /var/log/vdsm/vdsm.log on the other host, which
acts as a fencing proxy, to see the exact error.

Regards,
Martin


On Mon, Jun 8, 2020 at 7:15 PM Vinícius Ferrão via Users 
wrote:

> Yes… actually IBM uses pretty standard stuff. IPMI is enabled by default
> and as I said, I can use ipmitool on CLI and it’s works normally.
>
> I do have some updates, I upgraded the OpenBMC firmware and now I can use
> ipmitool like anything else with -U and -P; so I was hoping that oVirt
> would handle the Power Management with IPMI over LAN (exactly how you
> suggested) but the issue stays. JSON-RPC error. :(
>
> Now I really think this is a bug, but I would like to get some
> confirmation from the oVirt devs to raise it on bugzilla.
>
> > On 8 Jun 2020, at 14:00, bernadette.pfau--- via Users 
> wrote:
> >
> > Making a guess here -- on Dell iDRAC there is a setting for "IPMI over
> LAN".  Is there an equivalent on the IBM?
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-- 
Martin Perina
Manager, Software Engineering
Red Hat Czech s.r.o.
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[ovirt-users] Re: First ovirt 4.4 installation failing

[Paul-Erik Törrönen]

On 2020-06-08 08:58, Yedidyah Bar David wrote:

I agree it's not detailed enough.
We have it briefly mentioned e.g. here:
https://www.ovirt.org/documentation/installing_ovirt_as_a_self-hosted_engine_using_the_cockpit_web_interface/#host-firewall-requirements_SHE_cockpit_deploy
For some reason it's marked "Optional", not sure why.


I think it should also be pointed out that only certain keys are 
supported.


You can't eg. have a ed25519-only setup as the installation tries to use 
RSA.


Poltsi
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[ovirt-users] Re: Weird problem starting VMs in oVirt-4.4

[Joop]

On 8-6-2020 19:56, Stephen Panicho wrote:
> I ended up making a BZ about this same issue a few weeks ago, but
> misdiagnosed the root cause. Maybe we could add to that?
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1839598
And maybe change the title to something else.
I'm ok with my logs/mail being added to it. I can do it sometime today
or tomorrow but feel free to do it if that suits you.

Regards,

Joop
>
> On Mon, Jun 8, 2020, 11:54 AM Strahil Nikolov via Users
> mailto:users@ovirt.org>> wrote:
>
> Are you using ECC ram ?
>
> Best Regards,
> Strahil Nikolov
>
> На 8 юни 2020 г. 15:06:22 GMT+03:00, Joop  > написа:
> >On 3-6-2020 14:58, Joop wrote:
> >> Hi All,
> >>
> >> Just had a rather new experience in that starting a VM worked
> but the
> >> kernel entered grub2 rescue console due to the fact that something
> >was
> >> wrong with its virtio-scsi disk.
> >> The message is Booting from Hard Disk 
> >> error: ../../grub-core/kern/dl.c:266:invalid arch-independent ELF
> >maginc.
> >> entering rescue mode...
> >>
> >> Doing a CTRL-ALT-Del through the spice console let the VM boot
> >> correctly. Shutting it down and repeating the procedure I get a
> disk
> >> problem everytime. Weird thing is if I activate the BootMenu
> and then
> >> straight away start the VM all is OK.
> >> I don't see any ERROR messages in either vdsm.log, engine.log
> >>
> >> If I would have to guess it looks like the disk image isn't
> connected
> >> yet when the VM boots but thats weird isn't it?
> >>
> >>
> >As an update to this:
> >Just had the same problem with a Windows VM but more importantly also
> >with HostedEngine itself.
> >On the host did:
> >hosted-engine --set-maintenance --mode=global
> >hosted-engine --vm-shutdown
> >
> >Stopped all oVirt related services, cleared all oVirt related
> logs from
> >/var/log/..., restarted the host, ran hosted-engine --set-maintenance
> >--mode=none
> >Watched /var/spool/mail/root to see the engine coming up. It went to
> >starting but never came into the Up status.
> >Set a password and used vncviewer to see the console, see attached
> >screenschot.
> >hosted-engine --vm-poweroff, and tried again, same result
> >hosted-engine --vm-start, works
> >Let it startup and then shut it down after enabling maintenance mode.
> >Copied, hopefully, all relevant logs and attached them.
> >
> >A sosreport is also available, size 12Mb. I can provide a
> download link
> >if needed.
> >
> >Hopefully someone is able to spot what is going wrong.
> >
> >Regards,
> >
> >Joop
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