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

[Stefano Danzi]

I found this in vdsm.log and I think that could be the problem:

Thread-3771::ERROR::2015-12-18 
16:18:58,597::brokerlink::279::ovirt_hosted_engine_ha.lib.brokerlink.BrokerLink::(_communicate) 
Connection closed: Connection closed
Thread-3771::ERROR::2015-12-18 
16:18:58,597::API::1847::vds::(_getHaInfo) failed to retrieve Hosted 
Engine HA info
Traceback (most recent call last):
   File "/usr/share/vdsm/API.py", line 1827, in _getHaInfo
     stats = instance.get_all_stats()
   File 
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py", 
line 103, in get_all_stats
     self._configure_broker_conn(broker)
   File 
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py", 
line 180, in _configure_broker_conn
     dom_type=dom_type)
   File 
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py", 
line 176, in set_storage_domain
     .format(sd_type, options, e))
RequestError: Failed to set storage domain FilesystemBackend, options 
{'dom_type': 'nfs3', 'sd_uuid': '46f55a31-f35f-465c-b3e2-df45c05e06a7'}: 
Connection closed

Il 17/12/2015 18.51, Stefano Danzi ha scritto:
> 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
>>
>
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