[ovirt-users] MoM is failing!!!

[Erekle Magradze]

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

-- 
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Dr.rer.nat. Erekle Magradze
Lead Big Data Engineering & DevOps
Rheinwerkallee 2, 53227 Bonn
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