[ovirt-users] ipv6 export domain

[Nathanaël Blanchet]

Hi Dan,

I have 15 ovirt hosts running vdsm, and no problem with el6 ones. 
However, all of my el7 hosts (freshly installed because provided with no 
OS) meet this issue.
I don't need ipv6 for the moment (maybe in 10 years :)), so the best way 
is to deactivate it.
As I said, the issue seems to come frome ipv6 dns resolution, so it 
could be a DNS issue...
Something else : before registering the el7 hosts, I use nmtui so as to 
configure a few network feature, like vlan for the upcoming ovirmgmt 
network. I didn't take care of the default options in this ui, but maybe 
something is related to ipv6 here.

Le 16/03/2015 13:08, Dan Kenigsberg a écrit :
> On Thu, Mar 12, 2015 at 12:14:56PM +0100, Sven Kieske wrote:
>> Was this ever fixed/reported via bugzilla?
> To the best of my knowledge, it was never reported, and certainly was
> never fixed.
>
> At the moment, I'm not yet sure that there's something to fix in oVirt:
> Like Diid, I wouldn't want to disable ipv6 on all hosts. I'd rather
> understand why Nathanaël's ipv6 dns lookup fail, and solve this specific
> bug.
>
> Nathanaël, could you provide more details on the underlying bug? Do you
> think that it is somehow related to ovirt?
>
>> On 01/03/15 08:09, Yedidyah Bar David wrote:
>>> ----- Original Message -----
>>>> From: "Nathanaël Blanchet" <blanchet at abes.fr>
>>>> To: users at ovirt.org
>>>> Sent: Friday, February 27, 2015 7:22:38 PM
>>>> Subject: Re: [ovirt-users] Can't put export/iso domain in maintenance mode
>>>>
>>>> I found the issue, all my el7 hosts were blocking in resolving ipv6
>>>> fqdn. I deactivated ipv6 with sysctl -w net.ipv6.conf.all.disable_ipv6 =
>>>> 1 and all my troubles have gone away (sysctl -w
>>>> net.ipv6.conf.all.disable_ipv6 = 1 in sysctl.conf for persistent effect)
>>> Thanks for the report!
>>>
>>>> I have a question reslating to this : why does el7 hosts deal with ipv6
>>>> in ovirt? otopi should deactivate it at the installation step, shouldn't it?
>>> Why?
>>>
>>> I didn't try ipv6 with ovirt but a quick search shows it seems to be at least
>>> partially working.
>>>
>>> If the above-mentioned blocking was due to default conf/setup, it's probably
>>> a bug.
>>>
>>>> Le 27/02/2015 15:59, Nathanaël Blanchet a écrit :
>>>>> Hi all,
>>>>>
>>>>> I use the same export domain for two different datacenter and I can't
>>>>> anymore put it in a maintenance mode so as to detach it for
>>>>> reattaching to the second datacenter.
>>>>> It says "Preparing for maintenance" and it stays in that state with no
>>>>> ending.
>>>>> Is this operation supposed to be long before being able to detach the
>>>>> datacenter?
>>>>> _______________________________________________
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>>> Best regards,
>>>
>> -- 
>> Mit freundlichen Grüßen / Regards
>>
>> Sven Kieske
>>
>> Systemadministrator
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