[ovirt-users] MoM is failing!!!

[Dafna Ron]

Hi,

Can you please tell us what is the issue that you are actually facing?
:) it would be easier to debug an issue and not an error message that
can be cause by several things.

Also, can you provide the engine and the vdsm logs?

thank you,
Dafna


On 10/16/2017 02:30 PM, Erekle Magradze wrote:
>
> It's was a typo in the failure message, 
>
> that's what I was getting:
>
> *VDSM hostname command GetStatsVDS failed: Connection reset by peer*
>
>
> On 10/16/2017 03:21 PM, Erekle Magradze wrote:
>>
>> Hi,
>>
>> It's getting clear now, indeed momd service is disabled
>>
>> ● momd.service - Memory Overcommitment Manager Daemon
>>    Loaded: loaded (/usr/lib/systemd/system/momd.service; static;
>> vendor preset: disabled)
>>    Active: inactive (dead)
>>
>> mom-vdsm is enable and running.
>>
>> ● mom-vdsm.service - MOM instance configured for VDSM purposes
>>    Loaded: loaded (/usr/lib/systemd/system/mom-vdsm.service; enabled;
>> vendor preset: enabled)
>>    Active: active (running) since Mon 2017-10-16 15:14:35 CEST; 1min
>> 3s ago
>>  Main PID: 27638 (python)
>>    CGroup: /system.slice/mom-vdsm.service
>>            └─27638 python /usr/sbin/momd -c /etc/vdsm/mom.conf
>>
>> The reason why I came up with digging in mom problems is the
>> following problem
>>
>>
>> *VDSM hostname command GetStatsVDSThanks failed: Connection reset by
>> peer*
>>
>> that is causing fencing of the node where the failure is happening,
>> what could be the reason of GetStatsVDS failure?
>>
>> Best Regards
>> Erekle
>>
>>
>> On 10/16/2017 03:11 PM, Martin Sivak wrote:
>>> Hi,
>>>
>>> how do you start MOM? MOM is supposed to talk to vdsm, we do not talk
>>> to libvirt directly. The line you posted comes from vdsm and vdsm is
>>> telling you it can't talk to MOM.
>>>
>>> Which MOM service is enabled? Because there are two momd and mom-vdsm,
>>> the second one is the one that should be enabled.
>>>
>>> Best regards
>>>
>>> Martin Sivak
>>>
>>>
>>> On Mon, Oct 16, 2017 at 3:04 PM, Erekle Magradze
>>> <erekle.magradze at recogizer.de> wrote:
>>>> Hi Martin,
>>>>
>>>> Thanks for the answer, unfortunately this warning message persists, does it
>>>> mean that mom cannot communicate with libvirt? how critical is it?
>>>>
>>>> Best
>>>>
>>>> Erekle
>>>>
>>>>
>>>>
>>>> On 10/16/2017 03:03 PM, Martin Sivak wrote:
>>>>> Hi,
>>>>>
>>>>> it is just a warning, there is nothing you have to solve unless it
>>>>> does not resolve itself within a minute or so. If it happens only once
>>>>> or twice after vdsm or mom restart then you are fine.
>>>>>
>>>>> Best regards
>>>>>
>>>>> --
>>>>> Martin Sivak
>>>>> SLA / oVirt
>>>>>
>>>>> On Mon, Oct 16, 2017 at 2:44 PM, Erekle Magradze
>>>>> <erekle.magradze at recogizer.de> wrote:
>>>>>> Hi,
>>>>>>
>>>>>> after running
>>>>>>
>>>>>> systemctl status vdsm I am getting that it's running and this message at
>>>>>> the
>>>>>> end.
>>>>>>
>>>>>> Oct 16 14:26:52 hostname vdsmd[2392]: vdsm throttled WARN MOM not
>>>>>> available.
>>>>>> Oct 16 14:26:52 hostname vdsmd[2392]: vdsm throttled WARN MOM not
>>>>>> available,
>>>>>> KSM stats will be missing.
>>>>>> Oct 16 14:26:57 hostname vdsmd[2392]: vdsm root WARN ping was deprecated
>>>>>> in
>>>>>> favor of ping2 and confirmConnectivity
>>>>>>
>>>>>> how critical it is? and how to solve that warning?
>>>>>>
>>>>>> I am using libvirt
>>>>>>
>>>>>> Cheers
>>>>>>
>>>>>> _______________________________________________
>>>>>> 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
>
> -- 
> Recogizer Group GmbH
>
> Dr.rer.nat. Erekle Magradze
> Lead Big Data Engineering & DevOps
> Rheinwerkallee 2, 53227 Bonn
> Tel: +49 228 29974555
>
> E-Mail erekle.magradze at recogizer.de
> Web: www.recogizer.com
>  
> Recogizer auf LinkedIn https://www.linkedin.com/company-beta/10039182/
> Folgen Sie uns auf Twitter https://twitter.com/recogizer
>  
> -----------------------------------------------------------------
> Recogizer Group GmbH
> Geschäftsführer: Oliver Habisch, Carsten Kreutze
> Handelsregister: Amtsgericht Bonn HRB 20724
> Sitz der Gesellschaft: Bonn; USt-ID-Nr.: DE294195993
>  
> Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen.
> Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben,
> informieren Sie bitte sofort den Absender und löschen Sie diese Mail.
> Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail und der darin enthaltenen Informationen ist nicht gestattet.
>
>
> _______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ovirt.org/pipermail/users/attachments/20171016/af302326/attachment.html>