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

[Roy Golan]

On Mon, Dec 28, 2015 at 4:06 PM, Yedidyah Bar David <didi at redhat.com> wrote:

> On Mon, Dec 28, 2015 at 3:48 PM, Stefano Danzi <s.danzi at hawai.it> wrote:
> > 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...
>
> Thanks for the report :-)
>
> >
> >
> > 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
> >
> >
> > _______________________________________________
> > Users mailing list
> > Users at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
> >
>
>
>
> --
> Didi
> _______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
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