Hi Lior,
Engine has both networks (ovirtmgmt as eth0 and data as eth1).
Internally the cluster should communicate via ovirtmgmt (installed using
internal name for ovirtmgmt IP and this network is strictly local to the
ovirt cluster). I'm reaching web of engine via data IP (public network
as web is listening on all interfaces).
So when you take node1 down and node2's management interface goes down,
how come the engine is still able to communicate with node2? Is the
hostname also resolved to the data IP?
I'm sorry for worse responses as I'm on a business trip for next few weeks.
Cheers,
Luf
sent from phone
Dne 19. 11. 2014 9:34 Lior Vernia <lvernia(a)redhat.com> napsal(a):
Hey,
Thanks, so how come node2 moves to non-operational state rather than
non-responsive (i.e. how come it's reachable from the engine)? The IP
address via which it was installed, belongs to which network interface?
bond1 which is used for data?
Lior.
On 18/11/14 12:17, Finstrle, Ludek wrote:
>
> Hi,
>
> yes that's exactly what I tried to describe. Thanks Ekin.
> There is no switch between 2 hosts/nodes (for ovirtmgmt network). It's
> similar to situation when I tried just one host/node and put the
> ovirtmgmt network to not connected network interface (will connect it
> once we buy second host).
>
> Cheers,
>
> Luf
>
> Ekin Meroğlu píše v Út 18. 11. 2014 v 00:00 +0200:
>> Hi Lior,
>>
>>
>> If I'm not mistaken, on Luf's topology, there is no switch on the
>> management bond (bond0) - just a cross or regular eth cable connecting
>> physical interfaces on both nodes. So when one node is powered down,
>> there is no link detected on the other node.
>>
>>
>> Regards,
>>
>> On Mon, Nov 17, 2014 at 12:02 PM, Lior Vernia <lvernia(a)redhat.com>
>> wrote:
>> Hi Luf,
>>
>> Apologies, I probably don't understand the details of your L2
>> toplogy;
>> how come when you turn off one host it affects the link state
>> of of the
>> other one's interfaces?...
>>
>> Yours, Lior.
>>
>> On 14/11/14 11:43, Finstrle, Ludek wrote:
>> >
>> > Hi,
>> >
>> > I have 2-node ovirt "cluster". Both machines has 4
>> interfaces.
>> > 2 interfaces in bond1 for data
>> > 2 interfaces in bond0 for management (short connected
>> directly between
>> > servers)
>> >
>> > switch0 -----\ /-----\ /----- switch0
>> > node1 node2
>> > switch1 -----/ \-----/ \----- switch1
>> >
>> > I setup everything as I want/expect but I hit one problem
>> and I don't
>> > know how to fix it. The problem is when I switch off one of
>> the machines
>> > for maintenance (node01.ovirt in this case). I get in ovirt
>> engine this
>> > message:
>> >
>> > Host node02.ovirt moved to Non-Operational state because
>> interfaces
>> > which are down are needed by required networks in the
>> current cluster:
>> > 'bond0 (ovirtmgmt)'.
>> >
>> > Do you have any idea how to avoid it? I can't change
>> physical
>> > architecture as I don't have 10Gb switch.
>> >
>> > BTW it's the same as if I want to start with only 1 node and
>> separated
>> > data and mgmt networks:
>> >
>> > switch ----- host --(not connected iface for mgmt as I don't
>> need it)
>> >
>> > Thanks,
>> >
>> > Luf
>> >
>> >
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>> Ekin Meroğlu Red Hat Certified Datacenter Specialist
>> linuxera Özgür Yazılım Çözüm ve Hizmetleri
>> T +90 (850) 22 LINUX GSM +90 (532) 137 77 04
>
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