Hi,

Adding also Marcin here.
I reproduced it as well and I can confirm that the external provider was called 'OVN' by default at 4.1 time but now engine-setup will create by default a new provider called 'ovirt-provider-ovn'.
Both the two providers are now configured in the engine to be reached at https://<enginevm_ip>:9696

The engine can successfully talk with ovirt-provider-ovn while I get errors like 'Error while listing external networks: EngineException: (Failed with error Connection reset and code 5050)' when I try to query the old OVN provider.

Logical networks previously attached to the old OVN provider are still there in the engine and they are still attached to the old OVN provider.

Unfortunately I'm not able to start/restart VMs with interfaces on a logical network defined on the OVN provider.

I manually recreated the missing networks on the new 'ovirt-provider-ovn' provider and I reattached my VMs there and at that point I was finally able to start again my VMs.

On Mon, May 21, 2018 at 4:55 PM, Gianluca Cecchi <gianluca.cecchi@gmail.com> wrote:

 

Another information regarding my current environment:

From engine database it results that my OVN provider name is "OVN"

engine=# select id,name from providers;

                  id                  |          name          

--------------------------------------+------------------------

 ceab03af-7220-4d42-8f5c-9b557f5d29af | ovirt-image-repository

 84546a85-2958-4c1d-bbfe-afeb486ebda9 | OVN

(2 rows)

engine=# 

why it seems that in its default config it would name it "ovirt-provider-ovn"?

Does this mean that it will be no conflict in name? But what about the current nortbridge and southbridge configs?

Currently my central server is the engine (that is external to the infra) and it shows this:

[root@ovmgr1 ~]# ovn-sbctl show

Chassis "1dce5b7c-a9fc-4ddb-99b4-e2c9e0fa54c5"

    hostname: "ov200.mydomain"

    Encap geneve

        ip: "10.4.192.32"

        options: {csum="true"}

Chassis "b8872ab5-4606-4a79-b77d-9d956a18d349"

    hostname: "ov301.mydomain"

    Encap geneve

        ip: "10.4.192.34"

        options: {csum="true"}

Chassis "ddecf0da-4708-4f93-958b-6af365a5eeca"

    hostname: "ov300.mydomain"

    Encap geneve

        ip: "10.4.192.33"

        options: {csum="true"}

[root@ovmgr1 ~]# 

and

[root@ovmgr1 ~]# ovn-nbctl show

    switch 32367d8a-460f-4447-b35a-abe9ea5187e0 (ovn192)

        port affc5570-3e5a-439c-9fdf-d75d6810e3a3

            addresses: ["00:1a:4a:17:01:73 dynamic"]

        port f639d541-2118-4c24-b478-b7a586eb170c

            addresses: ["00:1a:4a:17:01:75 dynamic"]

    switch 6110649a-db2b-4de7-8fbc-601095cfe510 (ovn192)

    switch 64c4c17f-cd67-4e29-939e-2b952495159f (ovn172)

        port 32c348d9-12e9-4bcf-a43f-69338c887cfc

            addresses: ["00:1a:4a:17:01:72 dynamic"]

        port 3c77c2ea-de00-43f9-a5c5-9b3ffea5ec69

            addresses: ["00:1a:4a:17:01:74 dynamic"]

    switch 04501f6b-3977-4ba1-9ead-7096768d796d (ovn172)

        port 0a2a47bc-ea0d-4f1d-8f49-ec903e519983

            addresses: ["00:1a:4a:17:01:65 dynamic"]

        port 8fc7bed4-7663-4903-922b-05e490c6a5a1

            addresses: ["00:1a:4a:17:01:64 dynamic"]

        port f2b64f89-b719-484c-ac02-2a1ac8eaacdb

            addresses: ["00:1a:4a:17:01:59 dynamic"]

        port f7389c88-1ea1-47c2-92fd-6beffb2e2190

            addresses: ["00:1a:4a:17:01:58 dynamic"]

[root@ovmgr1 ~]# 

and on my hosts currently I have something like this (eg on ov200):

[root@ov200 ~]# ovs-vsctl show

ae0a1256-7250-46a2-a1b6-8f0ae6105c20

    Bridge br-int

        fail_mode: secure

        Port br-int

            Interface br-int

                type: internal

        Port "ovn-ddecf0-0"

            Interface "ovn-ddecf0-0"

                type: geneve

                options: {csum="true", key=flow, remote_ip="10.4.192.33"}

        Port "ovn-b8872a-0"

            Interface "ovn-b8872a-0"

                type: geneve

                options: {csum="true", key=flow, remote_ip="10.4.192.34"}

    ovs_version: "2.7.3"

[root@ov200 ~]# 

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