On Thu, Mar 14, 2019 at 3:04 PM Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> wrote:

Thanks Miguel, if we configure it connect to a physical network and select the Data Centre Network I assume it will create the overlay network on top of that logical network.

Let me clarify; the network on top of which it sets up the overlay is defined when the host is added, and is *only* used for inter-host communication. When within the same host, it simply uses the OVS bridge. What (I think) you mean uses the localnet feature of OVN, where the packets leaving the OVS bridge are forwarded to the external logical network you configure. These 2 concepts are unrelated.

Also is there any documentation about the ovn-provider-network architecture.

Regards, Paul S. ________________________________________ From: Miguel Duarte de Mora Barroso <mdbarroso@redhat.com> Sent: 14 March 2019 13:15 To: Staniforth, Paul Cc: users@ovirt.org Subject: Re: [ovirt-users] ovn-provider-network

On Wed, Mar 13, 2019 at 10:08 PM Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> wrote:

...

Hello,

we are using oVirt-4.2.8 and I have created a logical network using the ovn-network-provider, I haven't configured it to connect to a physical network.

I have 2 VMs running on 2 hosts which can connect to each other this logical network. The only connection between the hosts is over the ovirtmgmt network so presumably the traffic is using this?

Yes, OVN sets up an overlay network on top of ovirtmgmt network.

...

Thanks,

Paul S.

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On Fri, Mar 15, 2019 at 3:49 PM Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> wrote:

Thanks, I can see now from "ovn-sbctl show" on the engine machine that 2 of our hosts haven't deployed ovn

● ovn-controller.service - OVN controller daemon Loaded: loaded (/usr/lib/systemd/system/ovn-controller.service; disabled; vendor preset: disabled) Active: inactive (dead) This was one of the things that was confusing me

I'll see if I can deploy ovn without reinstalling, also is it possible to change the deployment to use a different network rather than ovirtmgmt?

You could use vdsm-tool to reconfigure OVN on the hosts. Please try this: vdsm-tool ovn-config <your_engine_ip> ovirtmgmt If you want to setup your overlay on top of a different network, replace ovirtmgmt with that network name. To ensure connectivity accross the cluster, make sure all your hosts are configured to run overlays on top *of the same network*. Make sure that other network is good to go before; I'd hate for you to end up worse than you are now, or lose faith on ovn :)

Regards, Paul S. ________________________________________ From: Miguel Duarte de Mora Barroso <mdbarroso@redhat.com> Sent: 15 March 2019 11:28 To: Staniforth, Paul Cc: users@ovirt.org Subject: Re: [ovirt-users] ovn-provider-network

On Thu, Mar 14, 2019 at 3:04 PM Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> wrote:

...

Thanks Miguel, if we configure it connect to a physical network and select the Data Centre Network I assume it will create the overlay network on top of that logical network.

Let me clarify; the network on top of which it sets up the overlay is defined when the host is added, and is *only* used for inter-host communication. When within the same host, it simply uses the OVS bridge.

What (I think) you mean uses the localnet feature of OVN, where the packets leaving the OVS bridge are forwarded to the external logical network you configure.

These 2 concepts are unrelated.

...

Also is there any documentation about the ovn-provider-network architecture.

Regards, Paul S. ________________________________________ From: Miguel Duarte de Mora Barroso <mdbarroso@redhat.com> Sent: 14 March 2019 13:15 To: Staniforth, Paul Cc: users@ovirt.org Subject: Re: [ovirt-users] ovn-provider-network

On Wed, Mar 13, 2019 at 10:08 PM Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> wrote:

...

Hello,

we are using oVirt-4.2.8 and I have created a logical network using the ovn-network-provider, I haven't configured it to connect to a physical network.

I have 2 VMs running on 2 hosts which can connect to each other this logical network. The only connection between the hosts is over the ovirtmgmt network so presumably the traffic is using this?

Yes, OVN sets up an overlay network on top of ovirtmgmt network.

...

Thanks,

Paul S.

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Thanks, not to worry we are still in a testing phase with ovn. That worked for one host the other failed with Job for ovsdb-server.service failed because the control process exited with error code. See "systemctl status ovsdb-server.service" and "journalctl -xe" for details. Traceback (most recent call last): File "/usr/bin/vdsm-tool", line 219, in main return tool_command[cmd]["command"](*args) File "/usr/lib/python2.7/site-packages/vdsm/tool/ovn_config.py", line 69, in ovn_config exec_command(cmd, 'Failed to configure OVN controller.') File "/usr/lib/python2.7/site-packages/vdsm/tool/ovn_config.py", line 140, in exec_command raise EnvironmentError(error_msg) EnvironmentError: Failed to configure OVN controller. Regards, Paul S. ________________________________________ From: Miguel Duarte de Mora Barroso <mdbarroso@redhat.com> Sent: 15 March 2019 16:15 To: Staniforth, Paul Cc: users@ovirt.org Subject: Re: [ovirt-users] ovn-provider-network On Fri, Mar 15, 2019 at 3:49 PM Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> wrote:

Thanks, I can see now from "ovn-sbctl show" on the engine machine that 2 of our hosts haven't deployed ovn

● ovn-controller.service - OVN controller daemon Loaded: loaded (/usr/lib/systemd/system/ovn-controller.service; disabled; vendor preset: disabled) Active: inactive (dead) This was one of the things that was confusing me

I'll see if I can deploy ovn without reinstalling, also is it possible to change the deployment to use a different network rather than ovirtmgmt?

You could use vdsm-tool to reconfigure OVN on the hosts. Please try this: vdsm-tool ovn-config <your_engine_ip> ovirtmgmt If you want to setup your overlay on top of a different network, replace ovirtmgmt with that network name. To ensure connectivity accross the cluster, make sure all your hosts are configured to run overlays on top *of the same network*. Make sure that other network is good to go before; I'd hate for you to end up worse than you are now, or lose faith on ovn :)

Regards, Paul S. ________________________________________ From: Miguel Duarte de Mora Barroso <mdbarroso@redhat.com> Sent: 15 March 2019 11:28 To: Staniforth, Paul Cc: users@ovirt.org Subject: Re: [ovirt-users] ovn-provider-network

On Thu, Mar 14, 2019 at 3:04 PM Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> wrote:

...

Thanks Miguel, if we configure it connect to a physical network and select the Data Centre Network I assume it will create the overlay network on top of that logical network.

Let me clarify; the network on top of which it sets up the overlay is defined when the host is added, and is *only* used for inter-host communication. When within the same host, it simply uses the OVS bridge.

What (I think) you mean uses the localnet feature of OVN, where the packets leaving the OVS bridge are forwarded to the external logical network you configure.

These 2 concepts are unrelated.

...

Also is there any documentation about the ovn-provider-network architecture.

Regards, Paul S. ________________________________________ From: Miguel Duarte de Mora Barroso <mdbarroso@redhat.com> Sent: 14 March 2019 13:15 To: Staniforth, Paul Cc: users@ovirt.org Subject: Re: [ovirt-users] ovn-provider-network

On Wed, Mar 13, 2019 at 10:08 PM Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> wrote:

...

Hello,

we are using oVirt-4.2.8 and I have created a logical network using the ovn-network-provider, I haven't configured it to connect to a physical network.

I have 2 VMs running on 2 hosts which can connect to each other this logical network. The only connection between the hosts is over the ovirtmgmt network so presumably the traffic is using this?

Yes, OVN sets up an overlay network on top of ovirtmgmt network.

...

Thanks,

Paul S.

To view the terms under which this email is distributed, please go to:- http://leedsbeckett.ac.uk/disclaimer/email/

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On Fri, Mar 15, 2019 at 6:11 PM Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> wrote:

I've now got the second host working, the directory /etc/openvswitch/ was owned by root instead of openvswitch:openvswitch

Nice to know you've got it working. Thanks for getting back to us.

Thanks, Paul S. To view the terms under which this email is distributed, please go to:- http://leedsbeckett.ac.uk/disclaimer/email/

On Thu, 21 Mar 2019 12:19:35 -0000 p.staniforth@leedsbeckett.ac.uk wrote:

I just deployed a new engine machine using engine-backup but it looks like it doesn't backup the ovirt-provider-ovn

https://bugzilla.redhat.com/show_bug.cgi?id=1630824

I copied over the file /etc/ovirt-provider-ovn/conf.d/10-setup-ovirt-provider-ovn.conf and restarted the engine and ovirt-provider-ovn

but it fails to communicate with the provider, do I need to run engine-setup again?

Maybe the steps in https://www.mail-archive.com/users@ovirt.org/msg53697.html might help? Else you can try to remove or rename the ovirt-provider-ovn provider in oVirt Engine, if it already exsits, and run engine-setup again like this engine-setup --reconfigure-optional-components or with answer-file that has 'OVESETUP_OVN/ovirtProviderOvn' enabled: 'OVESETUP_OVN/ovirtProviderOvn=bool:True' see https://lists.ovirt.org/archives/list/users@ovirt.org/thread/32S5L4JKHGPHE2X...

Thanks Paul S. _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/Q77H7CTGZU4ZMK...

On Fri, 15 Mar 2019 14:49:04 +0000 "Staniforth, Paul" <P.Staniforth@leedsbeckett.ac.uk> wrote:

Thanks, I can see now from "ovn-sbctl show" on the engine machine that 2 of our hosts haven't deployed ovn

● ovn-controller.service - OVN controller daemon Loaded: loaded (/usr/lib/systemd/system/ovn-controller.service; disabled; vendor preset: disabled) Active: inactive (dead) This was one of the things that was confusing me

I'll see if I can deploy ovn without reinstalling, also is it possible to change the deployment to use a different network rather than ovirtmgmt?

Just to have this link available in the archive for other users in a similar situation: The procedure is documented in https://ovirt.org/documentation/admin-guide/chap-External_Providers.html#con...

Regards, Paul S. ________________________________________ From: Miguel Duarte de Mora Barroso <mdbarroso@redhat.com> Sent: 15 March 2019 11:28 To: Staniforth, Paul Cc: users@ovirt.org Subject: Re: [ovirt-users] ovn-provider-network

On Thu, Mar 14, 2019 at 3:04 PM Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> wrote:

...

Thanks Miguel, if we configure it connect to a physical network and select the Data Centre Network I assume it will create the overlay network on top of that logical network.

Let me clarify; the network on top of which it sets up the overlay is defined when the host is added, and is *only* used for inter-host communication. When within the same host, it simply uses the OVS bridge.

What (I think) you mean uses the localnet feature of OVN, where the packets leaving the OVS bridge are forwarded to the external logical network you configure.

These 2 concepts are unrelated.

...

Also is there any documentation about the ovn-provider-network architecture.

Regards, Paul S. ________________________________________ From: Miguel Duarte de Mora Barroso <mdbarroso@redhat.com> Sent: 14 March 2019 13:15 To: Staniforth, Paul Cc: users@ovirt.org Subject: Re: [ovirt-users] ovn-provider-network

On Wed, Mar 13, 2019 at 10:08 PM Staniforth, Paul <P.Staniforth@leedsbeckett.ac.uk> wrote:

...

Hello,

we are using oVirt-4.2.8 and I have created a logical network using the ovn-network-provider, I haven't configured it to connect to a physical network.

I have 2 VMs running on 2 hosts which can connect to each other this logical network. The only connection between the hosts is over the ovirtmgmt network so presumably the traffic is using this?

Yes, OVN sets up an overlay network on top of ovirtmgmt network.

...

Thanks,

Paul S.

To view the terms under which this email is distributed, please go to:- http://leedsbeckett.ac.uk/disclaimer/email/

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