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

[Stefano Danzi]

Problem solved!!!

The file hosted-engine.conf had a wrong fqdn.
I don't think that this happened during upgrade... mybe thay my 
colleague did something of wrong...

Il 20/12/2015 14.52, Stefano Danzi ha scritto:
> Network problems was solved after changing Bond mode  (and it's 
> strange. I have to investigate around qemu-kvm, cento 7.2 and switch 
> firmware ), but broker problem still exist.  If I turn on the host, ha 
> agent start engine vm. When engine VM is up, broker strats to send 
> email.  Now I haven't here detailed logs.
>
>
> -------- Messaggio originale --------
> Da: Yedidyah Bar David <didi at redhat.com>
> Data: 20/12/2015 11:20 (GMT+01:00)
> A: Stefano Danzi <s.danzi at hawai.it>, Dan Kenigsberg <danken at redhat.com>
> Cc: users <users at ovirt.org>
> Oggetto: Re: [ovirt-users] Network instability after upgrade 3.6.0 -> 
> 3.6.1
>
> On Fri, Dec 18, 2015 at 5:31 PM, Stefano Danzi <s.danzi at hawai.it> wrote:
> > 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
>
> My guess is that this is a consequence of your networking problems.
>
> Adding Dan.
>
> >
> >
> > 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
> >>>
> >>
> >> _______________________________________________
> >> Users mailing list
> >> Users at ovirt.org
> >> http://lists.ovirt.org/mailman/listinfo/users
> >
> > _______________________________________________
> > Users mailing list
> > Users at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
>
>
>
> -- 
> Didi
>
>
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> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users

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