[ovirt-users] Network instability after upgrade 3.6.0 -> 3.6.1

[Stefano Danzi]

I partially solve the problem.

My host machine has 2 network interfaces with a bond. The bond was 
configured with  mode=4 (802.3ad) and switch was configured in the same way.
If I remove one network cable the network become stable. With both 
cables attached the network is instable.

I removed the link aggregation configuration from switch and change the 
bond in mode=2 (balance-xor). Now the network are stable.
The strange thing is that previous configuration worked fine for one 
year... since the last upgrade.

Now ha-agent don't reboot the hosted-engine anymore, but I receive two 
emails from brocker evere 2/5 minutes.
First a mail with "ovirt-hosted-engine state transition 
StartState-ReinitializeFSM" and after "ovirt-hosted-engine state 
transition ReinitializeFSM-EngineStarting"


Il 17/12/2015 10.51, Stefano Danzi ha scritto:
> Hello,
> I have one testing host (only one host) with self hosted engine and 2 
> VM (one linux and one windows).
>
> After upgrade ovirt from 3.6.0 to 3.6.1 the network connection works 
> discontinuously.
> Every 10 minutes HA agent restart hosted engine VM because result 
> down. But the machine is UP,
> only the network stop to work for some minutes.
> I activate global maintenace mode to prevent engine reboot. If I ssh 
> to the hosted engine sometimes
> the connection work and sometimes no.  Using VNC connection to engine 
> I see that sometime VM reach external network
> and sometimes no.
> If I do a tcpdump on phisical ethernet interface I don't see any 
> packet when network on vm don't work.
>
> Same thing happens fo others two VM.
>
> Before the upgrade I never had network problems.
> _______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>