[ovirt-users] Re: OVirt Engine Server Died - Steps for Rebuilding the Ovirt Engine System

[Yedidyah Bar David]

On Mon, Jan 6, 2020 at 12:00 AM Bob Franzke  wrote:
>
> Thanks for the reply here. Still waiting on a server to rebuild this with. 
> Should be here tomorrow. The engine was running on bare metal server, and was 
> not a VM.
>
> In the mean time we had a few of the VMs go dark for some reason. I 
> discovered the vdsm-client commands and tried figuring out what happened. Is 
> there any way I can start a VM via command line on one of the VM hosts? Is 
> the vdsm-client command the way to do this without a working engine?

It is, in principle, but that's not supported and is risky - because
the engine will not know what you do.

See also e.g.:

https://www.ovirt.org/develop/release-management/features/integration/cockpit.html

>
> -Original Message-
> From: Yedidyah Bar David (d...@redhat.com) 
> Sent: Tuesday, December 24, 2019 1:50 AM
> To: Bob Franzke 
> Cc: users 
> Subject: [ovirt-users] Re: OVirt Engine Server Died - Steps for Rebuilding 
> the Ovirt Engine System
>
> On Mon, Dec 23, 2019 at 7:08 PM Bob Franzke  wrote:
> >
> > > Which nightly backups? Do they run engine-backup?
> >
> > Yes sorry. The backups are the backups created when running the 
> > engine-backup script. So I have the files and the DB backed up and off onto 
> > different storage. I just grabbed a copy of the entire /etc directory as 
> > well just in case there was something needed in there that is not included 
> > in the engine-backup solution.
> >
> > > In either case, assuming this is a production env, I suggest to first 
> > > test on a separate env to see how it all looks like.
> >
> > This is a production environment. My plan is to get a new server ordered 
> > and built, removing the old server from the equation (old server is old and 
> > needs to be replaced anyway). Then rebuild the Ovirt bits and restore the 
> > data from my backups.
>
> I assume, from your first post, that you refer to the host running the 
> engine, and that this is a standalone engine, not hosted-engine.
> Right? Meaning, it's running on bare-metal, not inside a VM managed by itself.
>
> For testing you can try stuff on an isolated VM somewhere, no need to wait 
> for your new server to arrive.
>
> >
> > I just more needed a quick set up steps to take here. From what I gather I 
> > need to basically:
> >
> > 1. reinstall CentOS
> > 2. Reconfigure storage (this server has several ISCSI LUNs its attached to 
> > currently. I don’t know if they are required for this or what).
>
> I obviously have no idea what is your storage design and requirements, but 
> this is largely a local matter, unrelated to the hosts that run VMs. The 
> engine machine's storage is (normally) not used for that, only for the engine 
> itself (and its db, etc.).
>
> > 3. Install PostGreSQL (maybe? Or does the ovirt engine script do this
> > for you?) 3. Install Ovirt/run ovirt-engine script maybe?
>
> Add relevant repo, by installing relevant ovirt-releast* package (see the web 
> site), and then 'yum install ovirt-engine' - this should grab for you 
> postgresql etc.
>
> > 4. Restore DB and data
>
> Yes. Run basically 'engine-backup --mode=restore' and then 'engine-setup'. 
> Please check the backup/restore documentation on the web site.
> If your current engine used only defaults (meaning, engine+dwh+their DBs all 
> on the engine machine, provisioned by engine-setup), then the restore command 
> should be something like:
>
> engine-backup --mode=restore --file=your-backup-file --provision-all-databases
>
> Again, please test on a test VM somewhere, and make sure it's isolated
> - that it can't reach your hosts and start to manage them (unless that's what 
> you want, of course).
>
> >
> > I am not sure the details of the list outlined above (what to run where, 
> > etc.). I am looking for consultants to help me out here as its clear I am a 
> > bit behind the curve on this one. So far not much has worked out on that 
> > front. Does the above list seem reasonable in terms of needed steps to get 
> > this going again?
>
> See above.
>
> For consultants, you might want to check:
>
> https://www.ovirt.org/community/user-stories/users-and-providers.html
>
> And/or post again to the list with a subject line that's more likely to 
> attract them ("Looking for an oVirt consultant...").
>
> Good luck and best regards,
>
> >
> >
> > -Original Message-
> > From: Yedidyah Bar David (d...@redhat.com) 
> > Sent: Sunday, December 22, 2019 1:58 AM
> > To: bob.fran...@mdaemon.com
> > Cc: users 
> > Subject: [ovirt-users] Re: OVirt Engine Server Died - Steps for
> > Rebuilding the Ovirt Engine System
> >
> > On Fri, Dec 20, 2019 at 8:55 PM  wrote:
> > >
> > > Full disclosure here.I am not an Ovirt Expert. I am a network 
> > > Engineer that has been forced to take over sysadmin duties for a departed 
> > > co-worker. I have little experience with Ovirt so apologies up front for 
> > > anything I say that comes across as stupid or "RTM" questions. Normally I 
> > > 

[ovirt-users] Re: How do I do bridged networking?

[Ales Musil]

On Sun, Jan 5, 2020 at 5:31 PM  wrote:

Hi,

Hello everyone,
>
> how do I set up bridged networking?


Any VM network in oVirt is bridged.


> I want to give my VMs direct access to the network, that is: they should
> get an IP from DHCP and appear as "normal" nodes.


This should be possible straight away using ovirtmgmt network for example
without the need to define any other network.


> This is working out of the box for Proxmox. I was not able to find
> documentation that would make it possible to configure. Can I configure it
> via https://github.com/oVirt/ovirt-ansible-infra?
>

Yes, you can use ansible to configure networks.


>
> Kind regards
> Skrzetuski
>

Best regards,
Ales


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>


-- 

Ales Musil

Software Engineer - RHV Network

Red Hat EMEA 

amu...@redhat.comIM: amusil

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[ovirt-users] Usage statistics or graph for an oVirt environment?

[Victor Hooi]

Hi,

Is there an easy way to generate a dashboard or some kind of graph to track
the usage of an oVirt environment?

This would be things like how many VMs were created, or started, how many
successful logins, how many clones etc.

(Use case is to justify an internal environment/use case)

Thanks,
Victor
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[ovirt-users] Re: VM auto start with Host?

[Joseph Goldman]

High Availability will start a host that was interrupted - but there is 
no auto-start for VM's (yet) after a clean shutdown. A full clean 
shutdown should be very rare or not recommended in any environment but 
it does happen (think a DC move or something). The auto-start feature 
along with auto-start order is something apparently coming in a later 
release.


On 6/1/20 10:11 am, m.skrzetu...@gmail.com wrote:

Seems like it's enough to activate high availability.
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[ovirt-users] Re: Looking for Ovirt Consultants

[Joseph Goldman]

Do you also have backups of the engine ? from engine-backup utility in 
particular?


If so - both standalone and hosted engine should be fairly easy to 
recover with a backup file.



On 6/1/20 9:55 am, adrianquint...@gmail.com wrote:

Bob,
Is your environment hyperconverged?
if yes, what is the output of
#hosted-engine --vm-status


Are your hypervisors up and running?
i.e.
https://hypervisor1.mydomain.com
# ssh r...@hypervisor1.mydomain.com



Regards,

Adrian
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[ovirt-users] Re: VM auto start with Host?

[m . skrzetuski]

Seems like it's enough to activate high availability.
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[ovirt-users] Re: Looking for Ovirt Consultants

[adrianquintero]

Bob,
Is your environment hyperconverged?
if yes, what is the output of 
#hosted-engine --vm-status


Are your hypervisors up and running?
i.e. 
https://hypervisor1.mydomain.com
# ssh r...@hypervisor1.mydomain.com 



Regards,

Adrian
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[ovirt-users] Re: OVirt Engine Server Died - Steps for Rebuilding the Ovirt Engine System

[Bob Franzke]

Thanks for the reply here. Still waiting on a server to rebuild this with. 
Should be here tomorrow. The engine was running on bare metal server, and was 
not a VM.

In the mean time we had a few of the VMs go dark for some reason. I discovered 
the vdsm-client commands and tried figuring out what happened. Is there any way 
I can start a VM via command line on one of the VM hosts? Is the vdsm-client 
command the way to do this without a working engine?

-Original Message-
From: Yedidyah Bar David (d...@redhat.com)  
Sent: Tuesday, December 24, 2019 1:50 AM
To: Bob Franzke 
Cc: users 
Subject: [ovirt-users] Re: OVirt Engine Server Died - Steps for Rebuilding the 
Ovirt Engine System

On Mon, Dec 23, 2019 at 7:08 PM Bob Franzke  wrote:
>
> > Which nightly backups? Do they run engine-backup?
>
> Yes sorry. The backups are the backups created when running the engine-backup 
> script. So I have the files and the DB backed up and off onto different 
> storage. I just grabbed a copy of the entire /etc directory as well just in 
> case there was something needed in there that is not included in the 
> engine-backup solution.
>
> > In either case, assuming this is a production env, I suggest to first test 
> > on a separate env to see how it all looks like.
>
> This is a production environment. My plan is to get a new server ordered and 
> built, removing the old server from the equation (old server is old and needs 
> to be replaced anyway). Then rebuild the Ovirt bits and restore the data from 
> my backups.

I assume, from your first post, that you refer to the host running the engine, 
and that this is a standalone engine, not hosted-engine.
Right? Meaning, it's running on bare-metal, not inside a VM managed by itself.

For testing you can try stuff on an isolated VM somewhere, no need to wait for 
your new server to arrive.

>
> I just more needed a quick set up steps to take here. From what I gather I 
> need to basically:
>
> 1. reinstall CentOS
> 2. Reconfigure storage (this server has several ISCSI LUNs its attached to 
> currently. I don’t know if they are required for this or what).

I obviously have no idea what is your storage design and requirements, but this 
is largely a local matter, unrelated to the hosts that run VMs. The engine 
machine's storage is (normally) not used for that, only for the engine itself 
(and its db, etc.).

> 3. Install PostGreSQL (maybe? Or does the ovirt engine script do this 
> for you?) 3. Install Ovirt/run ovirt-engine script maybe?

Add relevant repo, by installing relevant ovirt-releast* package (see the web 
site), and then 'yum install ovirt-engine' - this should grab for you 
postgresql etc.

> 4. Restore DB and data

Yes. Run basically 'engine-backup --mode=restore' and then 'engine-setup'. 
Please check the backup/restore documentation on the web site.
If your current engine used only defaults (meaning, engine+dwh+their DBs all on 
the engine machine, provisioned by engine-setup), then the restore command 
should be something like:

engine-backup --mode=restore --file=your-backup-file --provision-all-databases

Again, please test on a test VM somewhere, and make sure it's isolated
- that it can't reach your hosts and start to manage them (unless that's what 
you want, of course).

>
> I am not sure the details of the list outlined above (what to run where, 
> etc.). I am looking for consultants to help me out here as its clear I am a 
> bit behind the curve on this one. So far not much has worked out on that 
> front. Does the above list seem reasonable in terms of needed steps to get 
> this going again?

See above.

For consultants, you might want to check:

https://www.ovirt.org/community/user-stories/users-and-providers.html

And/or post again to the list with a subject line that's more likely to attract 
them ("Looking for an oVirt consultant...").

Good luck and best regards,

>
>
> -Original Message-
> From: Yedidyah Bar David (d...@redhat.com) 
> Sent: Sunday, December 22, 2019 1:58 AM
> To: bob.fran...@mdaemon.com
> Cc: users 
> Subject: [ovirt-users] Re: OVirt Engine Server Died - Steps for 
> Rebuilding the Ovirt Engine System
>
> On Fri, Dec 20, 2019 at 8:55 PM  wrote:
> >
> > Full disclosure here.I am not an Ovirt Expert. I am a network Engineer 
> > that has been forced to take over sysadmin duties for a departed co-worker. 
> > I have little experience with Ovirt so apologies up front for anything I 
> > say that comes across as stupid or "RTM" questions. Normally I would do 
> > just that but I am in a bind and am trying to figure this out quickly. We 
> > have an OVirt installation setup that consists of 4 nodes and a server that 
> > hosts the ovirt-engine all running CentOS 7. The server that hosts the 
> > engine has a pair of failing hard drives and I need to replace the hardware 
> > ASAP. Need to outline the steps needed to build a new server to serve as 
> > and replace the ovirt engine server. I have backed up the 

[ovirt-users] Looking for Ovirt Consultants

[Bob Franzke]

Having an issue with Ovirt. Ovirt Engine server died. I have no idea about
Ovirt and I am way over my head here. Trying to put the engine back together
to get my environment working again. Can anyone help me here? Thanks in
advance.

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[ovirt-users] VM auto start with Host?

[m . skrzetuski]

Hello everyone,

please tell me it is possible to auto start all VMs together with a Host. How 
do I configure this?
I found some RFEs and Bugzilla Bugs and Redhat engineers promising this but no 
docs about how to enable it.

Kind regards
Skrzetuski
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[ovirt-users] Re: How do I do bridged networking?

[Strahil]

I setup my VMs to use the ovirtmgmt network as it is  defined  for all kinds of 
traffic.
As you use Intel NUC - just create a VM manually with ovirtmgmt and if it works 
- check the ansible playbooks.

Best Regards,
Strahil Nikolov
On Jan 5, 2020 18:30, m.skrzetu...@gmail.com wrote:
>
> Hello everyone, 
>
> how do I set up bridged networking? I want to give my VMs direct access to 
> the network, that is: they should get an IP from DHCP and appear as "normal" 
> nodes. This is working out of the box for Proxmox. I was not able to find 
> documentation that would make it possible to configure. Can I configure it 
> via https://github.com/oVirt/ovirt-ansible-infra? 
>
> Kind regards 
> Skrzetuski
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[ovirt-users] Re: Power management and storage domains error when running Ansible tasks!

[Strahil]

If you have some kind of ethernet-controlled power plug - you can have fencing 
(at least I have considered that).
Or you can edit the Host and disable the power management at all.


Best Regards,
Strahil Nikolov

On Jan 5, 2020 17:45, m.skrzetu...@gmail.com wrote:
>
> Well this is impossible on an Intel NUC. Or am I wrong? 
> Any way to get rid of the error messages? Deactivate them maybe?
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[ovirt-users] How do I do bridged networking?

[m . skrzetuski]

Hello everyone,

how do I set up bridged networking? I want to give my VMs direct access to the 
network, that is: they should get an IP from DHCP and appear as "normal" nodes. 
This is working out of the box for Proxmox. I was not able to find 
documentation that would make it possible to configure. Can I configure it via 
https://github.com/oVirt/ovirt-ansible-infra?

Kind regards
Skrzetuski
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[ovirt-users] Re: Power management and storage domains error when running Ansible tasks!

[m . skrzetuski]

Well this is impossible on an Intel NUC. Or am I wrong?
Any way to get rid of the error messages? Deactivate them maybe?
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[ovirt-users] Re: Power management and storage domains error when running Ansible tasks!

[Strahil]

You need to speciify the method to be used  for power fencing  - that could be 
HPE's iLO, Dell's iDRAC, APC UPS or  something else.

Best Regards,
Strahil NikolovOn Jan 5, 2020 14:13, m.skrzetu...@gmail.com wrote:
>
> I don't feel comfortable uploading the whole file with all the information 
> inside it. 
> I can see the following entries around power management. 
>
> 2020-01-05 12:58:18,031+01 WARN  
> [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
> (EE-ManagedThreadFactory-engine-Thread-3) [26be9219] EVENT_ID: 
> VDS_HOST_NOT_RESPONDING(9,027), Host  is not responding. Host cannot 
> be fenced automatically because power management for the host is disabled. 
> [...] 
> 2020-01-05 12:58:24,435+01 WARN  
> [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
> (EE-ManagedThreadFactory-engineScheduled-Thread-25) [cff01c0] EVENT_ID: 
> VDS_ALERT_FENCE_IS_NOT_CONFIGURED(9,000), Failed to verify Power Management 
> configuration for Host . 
>
> When (in the web UI) I try to activate power management for the host I get an 
> error: Cannot edit Host. Power Management is enabled for Host but no Agent 
> type selected. 
>
> Which agent is the error talking about? Do I have to run an agent somewhere?
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[ovirt-users] Re: Cluster CPU type update

[Strahil]

Just a  question from curiosity.
Can't we just define second cluster  and move each VM from old cluster  to the  
new one ?

Best Regards,
Strahil NikkolovOn Jan 5, 2020 12:29, Eli Mesika  wrote:
>
> This is the right way to do that IMO
>
> On Sat, Jan 4, 2020 at 3:09 AM Morris, Roy  wrote:
>>
>> Hello,
>>
>> I'm running a 4.3 cluster with 56 VMs all set to default cluster and the 
>> cluster itself is set to Intel Westmere Family. I am getting a new server 
>> and retiring 3 old ones which brings me to my question.
>>
>> When implementing the new host into the cluster and retiring the older 
>> hosts. I want to change the CPU type setting in the cluster default to 
>> Broadwell which is what my new 3 host cluster will be. To make this change, 
>> I assume the process would be to turn off all VMs, set cluster cpu type to 
>> broadwell, then turn on VMs to get the new CPU flags?
>>
>> Just wanted to reach out and see if someone else has had to go through this 
>> before and has any notes/tips.
>>
>> Best regards,
>>
>> Roy 
>>
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[ovirt-users] Re: Power management and storage domains error when running Ansible tasks!

[m . skrzetuski]

I don't feel comfortable uploading the whole file with all the information 
inside it.
I can see the following entries around power management.

2020-01-05 12:58:18,031+01 WARN  
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(EE-ManagedThreadFactory-engine-Thread-3) [26be9219] EVENT_ID: 
VDS_HOST_NOT_RESPONDING(9,027), Host  is not responding. Host cannot be 
fenced automatically because power management for the host is disabled.
[...]
2020-01-05 12:58:24,435+01 WARN  
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] 
(EE-ManagedThreadFactory-engineScheduled-Thread-25) [cff01c0] EVENT_ID: 
VDS_ALERT_FENCE_IS_NOT_CONFIGURED(9,000), Failed to verify Power Management 
configuration for Host .

When (in the web UI) I try to activate power management for the host I get an 
error: Cannot edit Host. Power Management is enabled for Host but no Agent type 
selected.

Which agent is the error talking about? Do I have to run an agent somewhere?
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[ovirt-users] Re: Cluster CPU type update

[Eli Mesika]

This is the right way to do that IMO

On Sat, Jan 4, 2020 at 3:09 AM Morris, Roy  wrote:

> Hello,
>
> I'm running a 4.3 cluster with 56 VMs all set to default cluster and the
> cluster itself is set to Intel Westmere Family. I am getting a new server
> and retiring 3 old ones which brings me to my question.
>
> When implementing the new host into the cluster and retiring the older
> hosts. I want to change the CPU type setting in the cluster default to
> Broadwell which is what my new 3 host cluster will be. To make this change,
> I assume the process would be to turn off all VMs, set cluster cpu type to
> broadwell, then turn on VMs to get the new CPU flags?
>
> Just wanted to reach out and see if someone else has had to go through
> this before and has any notes/tips.
>
> Best regards,
>
> Roy
>
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[ovirt-users] Re: Power management and storage domains error when running Ansible tasks!

[Eli Mesika]

On Fri, Jan 3, 2020 at 5:29 PM  wrote:

> Hello everyone,
>
> when I create a host via Ansible role "ovirt.infra" I get an error that
> power management is not enabled (red exclamation sign in the UI). My vars
> in the playbook look as follows.
>
> hosts:
> - name: delirium
>   address: delirium.home
>   cluster: Matrix
>   public_key: true
>   power_management_enabled: true
>

Can you please attach engine.log

>
> Why is power management not enabled?
> What is it used for and how do I enable it with Ansible?
>

Power management is used to automatically recover a failing host by
rebooting it using its power-management card

>
> I am trying to create a storage domain as follows.
>
> storages:
> vmdata:
>   domain_function: data
>   state: present
>   data_center: Matrix
>   localfs:
> path: /vmisos
>   host: delirium.home
> vmisos:
>   domain_function: data
>   state: present
>   data_center: Matrix
>   localfs:
> path: /vmdata
>   host: delirium.home
>
> However I get the following error.
>
> msg: Fault reason is "Incomplete parameters". Fault detail is
> "StorageDomain [storage] required for add". HTTP response code is 400.
> An exception occurred during task execution. To see the full traceback,
> use -vvv. The error was: Error: Fault reason is "Incomplete parameters".
> Fault detail is "StorageDomain [storage] required for add". HTTP response
> code is 400.
> failed: [delirium.home] (item={'key': 'vmisos', 'value': {'name': 'isos',
> 'domain_function': 'data', 'state': 'present', 'data_center': 'Matrix',
> 'localfs': {'path': '/vmdata'}, 'host': 'delirium.home'}}) => changed=false
>
> What is "storage" here? I don't see "storage" as parameter in
> https://docs.ansible.com/ansible/latest/modules/ovirt_storage_domain_module.html#ovirt-storage-domain-module
> .
>
> Kind regards
> skrzetuski
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[ovirt-users] Two host cluster without hyperconverged

[Göker Dalar]

Hello everyone,

I want to get an idea in this topic.
I have two servers with the same capabilities and 8 same  physical disc per
node.  I want to setup a cluster using a redundant disc.I dont have another
server for  gluster hyperconverged . How i should build  for this
 structure ?

Thanks in advance,

Göker
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[ovirt-users] 2 node redundant cluster without hyperconverged

[gokerdalar]

Hello, 

I want to get an idea in this topic. 
I have two servers with the same capabilities and 8 same  physical disc per 
node.  I want to setup a cluster using a redundant disc.I dont have another 
server for  gluster hyperconverged . How i should build  for this  structure ? 

Thanks in advance,

Göker
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