[ovirt-users] Re: ovirtmgmt Bridge - Which NIC? - Advice Please

2022-09-27 Thread duluxoz 

Thanks Gianluca

On 28/09/2022 08:12, Gianluca Cecchi wrote:
On Tue, Sep 27, 2022 at 5:22 PM Matthew J Black 
 wrote:


I need a quick piece of advice, please.

I'm at setting up the oVirt Engine VM (ie doing a "hosted-engine
--deploy") stage.

The Host has 3 NICs.

NIC_1 and NIC_2 are bonded (bond1) and run 2 VLANs (on bond1.1 and
bond1.2).

VLAN_1 is to be used as the "everyday connection VLAN for the VMs"
(including the oVirt Engine VM - I think).

VLAN_2 is *only* to be used for data traffic to-and-from our Ceph
Cluster (ie via the Ceph iSCSI Gateway Nodes).

NIC_3 (running VLAN_3) is to be used for oVirt-host-to-oVirt-host
comms (including "local" Gluster traffic - yes, the (oVirt) hosts
are running a couple of Gluster drives).

My question is: Which interface should we use for the "ovirtmgmt"
Bridge?

I suspect it should be NIC_3 (VLAN_3), and I'm 99.999% sure it
*shouldn't* be bond1.2 (VLAN_2), but it might be bond1.1 (VLAN_1),
so I thought I'd better get peoples' input.

You see, I'm not sure what the purpose of the "ovirtmgmt" bridge
is. Is it for humans to talk to the oVirt Engine, or is it for the
oVirt Engine to talk to the VMs (and hosts), or is it for some
other purpose, or is it for some combination of the these? (I have
read the doco on the ovirtmgmt bridge, and I'm still somewhat
confused.)

So, if someone wouldn't mind getting back to me about this, I'd
appreciate it.

Cheers

Dulux-Oz


In general the IP on the ovirtmgmt bridge is the one used to connect 
to the engine server (eg for web admin gui access and ssh access to 
the server to check logs and so on) and it is also used for mgmt 
communication between engine and hosts.

So the choice of the adapter/bond should take this into consideration.
No VMs involved and no need to use that logical network (the ovirtmgmt 
one) also for VMs virtual nics, but you can do it if needed/practical 
(eg lab or small environments).
The must in general is that the network where you decide to put the 
engine IP has to be routable with the networks where you decide to put 
the IPs of your hosts (eg host1 could be on network1 and host2 in 
network2, with both network1 and network2 routable with the network 
where the engine IP lives).
In the case of a Self Hosted Engine environment (engine as a VM inside 
the oVirt infra that it manages), you start the deployment process 
using a command on one server that will become at the end one of the 
managed hosts (hypervisors). So in general for the ovirtmgmt bridge 
you will use the network and so the adapter/bond that you use when you 
connect from your client to the host through ssh to start the whole 
process with the "hosted-engine --deploy" command.


See also this for temporary IP allocation for the self hosted engine 
appliance (downstream RHV links provided, but quite the same for oVirt):

https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html/planning_and_prerequisites_guide/rhv_requirements#general_requirements

Also these:
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html/planning_and_prerequisites_guide/considerations#networking-considerations
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html/planning_and_prerequisites_guide/recommendations#networking-recommendations

and review the deploy process flow:
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html/installing_red_hat_virtualization_as_a_self-hosted_engine_using_the_command_line/installing_the_red_hat_virtualization_manager_she_cli_deploy#Deploying_the_Self-Hosted_Engine_Using_the_CLI_install_RHVM

HIH,
Gianluca
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[ovirt-users] Re: Editing vm devices

2022-09-27 Thread Hean-Seng Tan 
I never needed to this but I could see host devices tab on web console for a vm 
in oVirt 4.5.0. Clicking on Add Device button will bring up a window to select 
host and some devices from the host to attach to the vm. Is this what you are 
looking for?

-HS Tan
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[ovirt-users] Uncaught exception on Network Interfaces tab of a newly added host to oVirt 4.5.0

2022-09-27 Thread Hean-Seng Tan 
I added a few hosts to oVirt that runs engine version 4.5.0.8-1.el8. Most of 
the hosts work well except that Network Interfaces tab of a host shows the 
below error on the web browser:

Uncaught exception occurred. Please try reloading the page. Details: 
(TypeError) : Cannot read properties of null (reading 'e')
Please have your administrator check the UI logs

I tried the following steps but they do not help:
- clearing web browser cache
- using a different web browser
- deleting and re-adding the host back to oVirt

/var/log/ovirt-engine/ui.log logged below error when the network interface tab 
of the host was accessed:
2022-09-28 01:52:51,527Z ERROR 
[org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService] (default 
task-1381) [] Permutation name: 06C89A2CB3005B8E9B9129A6A121B6E2
2022-09-28 01:52:51,527Z ERROR 
[org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService] (default 
task-1381) [] Uncaught exception: 
com.google.gwt.core.client.JavaScriptException: (TypeError) : a is null
at java.math.Elementary.add(Elementary.java:52)
at 
org.ovirt.engine.ui.webadmin.widget.host.HostNetworkInterfaceBondedListViewItem$8.$getValue(HostNetworkInterfaceBondedListViewItem.java:167)
at 
org.ovirt.engine.ui.webadmin.widget.host.HostNetworkInterfaceBondedListViewItem$8.getValue(HostNetworkInterfaceBondedListViewItem.java:167)
at com.google.gwt.user.cellview.client.Column.render(Column.java:164)
at 
com.google.gwt.user.cellview.client.AbstractCellTableBuilder.$renderCell(AbstractCellTableBuilder.java:188)
at 
com.google.gwt.user.cellview.client.DefaultCellTableBuilder.$buildRowImpl(DefaultCellTableBuilder.java:62)
at 
com.google.gwt.user.cellview.client.AbstractCellTableBuilder.$buildRow(AbstractCellTableBuilder.java:85)
at 
com.google.gwt.user.cellview.client.AbstractCellTable.$buildRowValues(AbstractCellTable.java:2350)
at 
com.google.gwt.user.cellview.client.AbstractCellTable.replaceAllChildren(AbstractCellTable.java:2149)
at 
com.google.gwt.user.cellview.client.AbstractHasData$View.replaceAllChildren(AbstractHasData.java:265)
at 
com.google.gwt.user.cellview.client.HasDataPresenter.$resolvePendingState(HasDataPresenter.java:1062)
at 
com.google.gwt.user.cellview.client.HasDataPresenter$2.execute(HasDataPresenter.java:981)
at 
com.google.gwt.core.client.impl.SchedulerImpl.runScheduledTasks(SchedulerImpl.java:167)
at 
com.google.gwt.core.client.impl.SchedulerImpl.$flushFinallyCommands(SchedulerImpl.java:272)
at com.google.gwt.core.client.impl.Impl.exit(Impl.java:383)
at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:345)
at 
Unknown.Ny/<(https://atlnpkvmoc01.amd.com/ovirt-engine/webadmin/?locale=en_US 
line 9 > injectedScript)
at Unknown.anonymous(Unknown)

Does anyone have any idea of what could be wrong?
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[ovirt-users] Re: ovirtmgmt Bridge - Which NIC? - Advice Please

2022-09-27 Thread Gianluca Cecchi 
On Tue, Sep 27, 2022 at 5:22 PM Matthew J Black 
wrote:

> I need a quick piece of advice, please.
>
> I'm at setting up the oVirt Engine VM (ie doing a "hosted-engine
> --deploy") stage.
>
> The Host has 3 NICs.
>
> NIC_1 and NIC_2 are bonded (bond1) and run 2 VLANs (on bond1.1 and
> bond1.2).
>
> VLAN_1 is to be used as the "everyday connection VLAN for the VMs"
> (including the oVirt Engine VM - I think).
>
> VLAN_2 is *only* to be used for data traffic to-and-from our Ceph Cluster
> (ie via the Ceph iSCSI Gateway Nodes).
>
> NIC_3 (running VLAN_3) is to be used for oVirt-host-to-oVirt-host comms
> (including "local" Gluster traffic - yes, the (oVirt) hosts are running a
> couple of Gluster drives).
>
> My question is: Which interface should we use for the "ovirtmgmt" Bridge?
>
> I suspect it should be NIC_3 (VLAN_3), and I'm 99.999% sure it *shouldn't*
> be bond1.2 (VLAN_2), but it might be bond1.1 (VLAN_1), so I thought I'd
> better get peoples' input.
>
> You see, I'm not sure what the purpose of the "ovirtmgmt" bridge is. Is it
> for humans to talk to the oVirt Engine, or is it for the oVirt Engine to
> talk to the VMs (and hosts), or is it for some other purpose, or is it for
> some combination of the these? (I have read the doco on the ovirtmgmt
> bridge, and I'm still somewhat confused.)
>
> So, if someone wouldn't mind getting back to me about this, I'd appreciate
> it.
>
> Cheers
>
> Dulux-Oz
>
>
In general the IP on the ovirtmgmt bridge is the one used to connect to the
engine server (eg for web admin gui access and ssh access to the server to
check logs and so on) and it is also used for mgmt communication between
engine and hosts.
So the choice of the adapter/bond should take this into consideration.
No VMs involved and no need to use that logical network (the ovirtmgmt one)
also for VMs virtual nics, but you can do it if needed/practical (eg lab or
small environments).
The must in general is that the network where you decide to put the engine
IP has to be routable with the networks where you decide to put the IPs of
your hosts (eg host1 could be on network1 and host2 in network2, with both
network1 and network2 routable with the network where the engine IP lives).
In the case of a Self Hosted Engine environment (engine as a VM inside the
oVirt infra that it manages), you start the deployment process using a
command on one server that will become at the end one of the managed hosts
(hypervisors). So in general for the ovirtmgmt bridge you will use the
network and so the adapter/bond that you use when you connect from your
client to the host through ssh to start the whole process with the
"hosted-engine --deploy" command.

See also this for temporary IP allocation for the self hosted engine
appliance (downstream RHV links provided, but quite the same for oVirt):
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html/planning_and_prerequisites_guide/rhv_requirements#general_requirements

Also these:
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html/planning_and_prerequisites_guide/considerations#networking-considerations
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html/planning_and_prerequisites_guide/recommendations#networking-recommendations

and review the deploy process flow:
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html/installing_red_hat_virtualization_as_a_self-hosted_engine_using_the_command_line/installing_the_red_hat_virtualization_manager_she_cli_deploy#Deploying_the_Self-Hosted_Engine_Using_the_CLI_install_RHVM

HIH,
Gianluca
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[ovirt-users] Re: Backup/restore of Hosted Engine VM

2022-09-27 Thread Strahil Nikolov via Users 
Another option is to shutdown the Engine and create a Gluster snapshot.Yet, 
this requires Gluster with thin-LVM based bricks.
Best Regards,Strahil Nikolov 
 
 
  On Mon, Sep 26, 2022 at 17:14, Volenbovskyi, 
Konstantin wrote:
Hi,
 I am aware that there is a procedure of backup/restore documented in 
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.2/html/self-hosted_engine_guide/backing_up_and_restoring_a_self-hosted_engine
 , but I would like to have also else as well when it comes to backup (and 
restore) of hosted engine VM and avoid using hosted-engine --deploy / 
engine-backup  
  
 
Is anyone doing Libvirt snapshot or any other similar thing to back up ovengine 
VM?
 
Part of that is the XML of the HE VM should be intact, so currently I am 
consideringhttps://libvirt.org/kbase/live_full_disk_backup.html#full-backup-with-older-libvirt-versions
and https://gist.github.com/cabal95/e36c06e716d3328b512
 
  
 
BR, 
 
Konstantin
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[ovirt-users] ovirtmgmt Bridge - Which NIC? - Advice Please

2022-09-27 Thread Matthew J Black 
I need a quick piece of advice, please.

I'm at setting up the oVirt Engine VM (ie doing a "hosted-engine --deploy") 
stage.

The Host has 3 NICs.

NIC_1 and NIC_2 are bonded (bond1) and run 2 VLANs (on bond1.1 and bond1.2).

VLAN_1 is to be used as the "everyday connection VLAN for the VMs" (including 
the oVirt Engine VM - I think).

VLAN_2 is *only* to be used for data traffic to-and-from our Ceph Cluster (ie 
via the Ceph iSCSI Gateway Nodes).

NIC_3 (running VLAN_3) is to be used for oVirt-host-to-oVirt-host comms 
(including "local" Gluster traffic - yes, the (oVirt) hosts are running a 
couple of Gluster drives).

My question is: Which interface should we use for the "ovirtmgmt" Bridge?

I suspect it should be NIC_3 (VLAN_3), and I'm 99.999% sure it *shouldn't* be 
bond1.2 (VLAN_2), but it might be bond1.1 (VLAN_1), so I thought I'd better get 
peoples' input.

You see, I'm not sure what the purpose of the "ovirtmgmt" bridge is. Is it for 
humans to talk to the oVirt Engine, or is it for the oVirt Engine to talk to 
the VMs (and hosts), or is it for some other purpose, or is it for some 
combination of the these? (I have read the doco on the ovirtmgmt bridge, and 
I'm still somewhat confused.)

So, if someone wouldn't mind getting back to me about this, I'd appreciate it.

Cheers

Dulux-Oz
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[ovirt-users] Re: No online ovirt conference this year?

2022-09-27 Thread Sandro Bonazzola 
Il giorno mar 27 set 2022 alle ore 09:07 Nathanaël Blanchet <
blanc...@abes.fr> ha scritto:

> Hello ovirt community,
> Will there be an upcoming ovirt conference this year? Last year it took
> place on mi- September.
> Cheers,
>

Hi, the oVirt team at Red Hat is not organizing any conference this year.
But nothing prevents the community from organizing one.

-- 

Sandro Bonazzola

MANAGER, SOFTWARE ENGINEERING, EMEA R PERFORMANCE & SCALE

Red Hat EMEA 

sbona...@redhat.com


*Red Hat respects your work life balance. Therefore there is no need to
answer this email out of your office hours.*
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[ovirt-users] No online ovirt conference this year?

2022-09-27 Thread Nathanaël Blanchet 
Hello ovirt community,
Will there be an upcoming ovirt conference this year? Last year it took place 
on mi- September.
Cheers,
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