<HTML><body>
<br />
Lior Vernia píše v St 19. 11. 2014 v 17:22 +0200:<BR>
> On 19/11/14 14:42, Finstrle, Ludek wrote:<BR>
> > Engine has both networks (ovirtmgmt as eth0 and data as eth1).<BR>
> > Internally the cluster should communicate via ovirtmgmt (installed using<BR>
> > internal name for ovirtmgmt IP and this network is strictly local to the<BR>
> > ovirt cluster). I'm reaching web of engine via data IP (public network<BR>
> > as web is listening on all interfaces).<BR>
> <BR>
> So when you take node1 down and node2's management interface goes down,<BR>
> how come the engine is still able to communicate with node2? Is the<BR>
> hostname also resolved to the data IP?<BR>
<BR>
It's not exact description of the situation.<BR>
<BR>
1) both nodes up => everything is working properly<BR>
2) second node power off<BR>
3) first node still have interfaces up (ovirtmgmt -> ens1f0 just without<BR>
link detected) => first node is switched into Non-Operational mode<BR>
(there should be at least some switch if I require link detected)<BR>
4) ping is working correctly over ovirtmgmt (checked via tcpdump)<BR>
between remaining node and hosted engine running on that node<BR>
<BR>
I switch back to the problematic situation and ensure I'm not saying<BR>
misleading information (ens1f0 is network interface for ovirtmgmt):<BR>
ovirtmgmt: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<BR>
ens1f0: flags=4099<UP,BROADCAST,MULTICAST> mtu 9000<BR>
# ethtool ens1f0<BR>
Settings for ens1f0:<BR>
Supported ports: [ TP ]<BR>
Supported link modes: 10baseT/Half 10baseT/Full <BR>
100baseT/Half 100baseT/Full <BR>
1000baseT/Full <BR>
Supported pause frame use: No<BR>
Supports auto-negotiation: Yes<BR>
Advertised link modes: 10baseT/Half 10baseT/Full <BR>
100baseT/Half 100baseT/Full <BR>
1000baseT/Full <BR>
Advertised pause frame use: No<BR>
Advertised auto-negotiation: Yes<BR>
Speed: Unknown!<BR>
Duplex: Unknown! (255)<BR>
Port: Twisted Pair<BR>
PHYAD: 1<BR>
Transceiver: internal<BR>
Auto-negotiation: on<BR>
MDI-X: Unknown (auto)<BR>
Supports Wake-on: pumbg<BR>
Wake-on: g<BR>
Current message level: 0x00000007 (7)<BR>
drv probe link<BR>
Link detected: no<BR>
<BR>
Cheers,<BR>
<BR>
Luf<BR>
<BR>
> > I'm sorry for worse responses as I'm on a business trip for next few weeks.<BR>
> > <BR>
> > Cheers,<BR>
> > <BR>
> > Luf<BR>
> > <BR>
> > sent from phone<BR>
> > <BR>
> > Dne 19. 11. 2014 9:34 Lior Vernia <lvernia@redhat.com> napsal(a):<BR>
> > Hey,<BR>
> > <BR>
> > Thanks, so how come node2 moves to non-operational state rather than<BR>
> > non-responsive (i.e. how come it's reachable from the engine)? The IP<BR>
> > address via which it was installed, belongs to which network interface?<BR>
> > bond1 which is used for data?<BR>
> > <BR>
> > Lior.<BR>
> > <BR>
> > On 18/11/14 12:17, Finstrle, Ludek wrote:<BR>
> >><BR>
> >> Hi,<BR>
> >><BR>
> >> yes that's exactly what I tried to describe. Thanks Ekin.<BR>
> >> There is no switch between 2 hosts/nodes (for ovirtmgmt network). It's<BR>
> >> similar to situation when I tried just one host/node and put the<BR>
> >> ovirtmgmt network to not connected network interface (will connect it<BR>
> >> once we buy second host).<BR>
> >><BR>
> >> Cheers,<BR>
> >><BR>
> >> Luf<BR>
> >><BR>
> >> Ekin Meroğlu píše v Út 18. 11. 2014 v 00:00 +0200:<BR>
> >>> Hi Lior,<BR>
> >>><BR>
> >>><BR>
> >>> If I'm not mistaken, on Luf's topology, there is no switch on the<BR>
> >>> management bond (bond0) - just a cross or regular eth cable connecting<BR>
> >>> physical interfaces on both nodes. So when one node is powered down,<BR>
> >>> there is no link detected on the other node.<BR>
> >>><BR>
> >>><BR>
> >>> Regards,<BR>
> >>><BR>
> >>> On Mon, Nov 17, 2014 at 12:02 PM, Lior Vernia <lvernia@redhat.com><BR>
> >>> wrote:<BR>
> >>> Hi Luf,<BR>
> >>><BR>
> >>> Apologies, I probably don't understand the details of your L2<BR>
> >>> toplogy;<BR>
> >>> how come when you turn off one host it affects the link state<BR>
> >>> of of the<BR>
> >>> other one's interfaces?...<BR>
> >>><BR>
> >>> Yours, Lior.<BR>
> >>><BR>
> >>> On 14/11/14 11:43, Finstrle, Ludek wrote:<BR>
> >>> ><BR>
> >>> > Hi,<BR>
> >>> ><BR>
> >>> > I have 2-node ovirt "cluster". Both machines has 4<BR>
> >>> interfaces.<BR>
> >>> > 2 interfaces in bond1 for data<BR>
> >>> > 2 interfaces in bond0 for management (short connected<BR>
> >>> directly between<BR>
> >>> > servers)<BR>
> >>> ><BR>
> >>> > switch0 -----\ /-----\ /----- switch0<BR>
> >>> > node1 node2<BR>
> >>> > switch1 -----/ \-----/ \----- switch1<BR>
> >>> ><BR>
> >>> > I setup everything as I want/expect but I hit one problem<BR>
> >>> and I don't<BR>
> >>> > know how to fix it. The problem is when I switch off one of<BR>
> >>> the machines<BR>
> >>> > for maintenance (node01.ovirt in this case). I get in ovirt<BR>
> >>> engine this<BR>
> >>> > message:<BR>
> >>> ><BR>
> >>> > Host node02.ovirt moved to Non-Operational state because<BR>
> >>> interfaces<BR>
> >>> > which are down are needed by required networks in the<BR>
> >>> current cluster:<BR>
> >>> > 'bond0 (ovirtmgmt)'.<BR>
> >>> ><BR>
> >>> > Do you have any idea how to avoid it? I can't change<BR>
> >>> physical<BR>
> >>> > architecture as I don't have 10Gb switch.<BR>
> >>> ><BR>
> >>> > BTW it's the same as if I want to start with only 1 node and<BR>
> >>> separated<BR>
> >>> > data and mgmt networks:<BR>
> >>> ><BR>
> >>> > switch ----- host --(not connected iface for mgmt as I don't<BR>
> >>> need it)<BR>
> >>> ><BR>
> >>> > Thanks,<BR>
> >>> ><BR>
> >>> > Luf<BR>
> >>> ><BR>
> >>> ><BR>
> >>> > NOTICE: This email and any attachments may contain<BR>
> >>> confidential and<BR>
> >>> > proprietary information of NetSuite Inc. and is for the sole<BR>
> >>> use of the<BR>
> >>> > intended recipient for the stated purpose. Any improper use<BR>
> >>> or<BR>
> >>> > distribution is prohibited. If you are not the intended<BR>
> >>> recipient,<BR>
> >>> > please notify the sender; do not review, copy or distribute;<BR>
> >>> and<BR>
> >>> > promptly delete or destroy all transmitted information.<BR>
> >>> Please note that<BR>
> >>> > all communications and information transmitted through this<BR>
> >>> email system<BR>
> >>> > may be monitored and retained by NetSuite or its agents and<BR>
> >>> that all<BR>
> >>> > incoming email is automatically scanned by a third party<BR>
> >>> spam and<BR>
> >>> > filtering service which may result in deletion of a<BR>
> >>> legitimate e-mail<BR>
> >>> > before it is read by the intended recipient.<BR>
> >>> ><BR>
> >>> ><BR>
> >>><BR>
> >>> > _______________________________________________<BR>
> >>> > Users mailing list<BR>
> >>> > <a href="mailto:Users@ovirt.org">Users@ovirt.org</a> <mailto:Users@ovirt.org> <mailto:Users@ovirt.org><BR>
> >>> > <a href="http://lists.ovirt.org/mailman/listinfo/users" target="_blank">http://lists.ovirt.org/mailman/listinfo/users</a><BR>
> >>> ><BR>
> >>> _______________________________________________<BR>
> >>> Users mailing list<BR>
> >>> <a href="mailto:Users@ovirt.org">Users@ovirt.org</a> <mailto:Users@ovirt.org> <mailto:Users@ovirt.org><BR>
> >>> <a href="http://lists.ovirt.org/mailman/listinfo/users" target="_blank">http://lists.ovirt.org/mailman/listinfo/users</a><BR>
> >>><BR>
> >>><BR>
> >>><BR>
> >>><BR>
> >>><BR>
> >>> --<BR>
> >>> Ekin Meroğlu Red Hat Certified Datacenter Specialist<BR>
> >>> linuxera Özgür Yazılım Çözüm ve Hizmetleri<BR>
> >>> T +90 (850) 22 LINUX GSM +90 (532) 137 77 04<BR>
> >><BR>
> >><BR>
> >> NOTICE: This email and any attachments may contain confidential and<BR>
> >> proprietary information of NetSuite Inc. and is for the sole use of the<BR>
> >> intended recipient for the stated purpose. Any improper use or<BR>
> >> distribution is prohibited. If you are not the intended recipient,<BR>
> >> please notify the sender; do not review, copy or distribute; and<BR>
> >> promptly delete or destroy all transmitted information. Please note that<BR>
> >> all communications and information transmitted through this email system<BR>
> >> may be monitored and retained by NetSuite or its agents and that all<BR>
> >> incoming email is automatically scanned by a third party spam and<BR>
> >> filtering service which may result in deletion of a legitimate e-mail<BR>
> >> before it is read by the intended recipient.<BR>
> > <BR>
> > <BR>
> > NOTICE: This email and any attachments may contain confidential and<BR>
> > proprietary information of NetSuite Inc. and is for the sole use of the<BR>
> > intended recipient for the stated purpose. Any improper use or<BR>
> > distribution is prohibited. If you are not the intended recipient,<BR>
> > please notify the sender; do not review, copy or distribute; and<BR>
> > promptly delete or destroy all transmitted information. Please note that<BR>
> > all communications and information transmitted through this email system<BR>
> > may be monitored and retained by NetSuite or its agents and that all<BR>
> > incoming email is automatically scanned by a third party spam and<BR>
> > filtering service which may result in deletion of a legitimate e-mail<BR>
> > before it is read by the intended recipient.<BR>
> <BR>
<br />
<br />
<font size="1">
NOTICE: This email and any attachments may contain confidential and proprietary information of NetSuite Inc. and is for the sole use of the intended recipient for the stated purpose. Any improper use or distribution is prohibited. If you are not the intended recipient, please notify the sender; do not review, copy or distribute; and promptly delete or destroy all transmitted information. Please note that all communications and information transmitted through this email system may be monitored and retained by NetSuite or its agents and that all incoming email is automatically scanned by a third party spam and filtering service which may result in deletion of a legitimate e-mail before it is read by the intended recipient.</font>
</body></HTML>