Re: [ovirt-users] MoM is failing!!!

Hi, The issue is the following, after installation of ovirt 4.1 on three nodes with glusterFS as a storage, oVirt engine reported the failed events, with the following message VDSM hostname command GetStatsVDS failed: Connection reset by peer after that oVirt was trying to fence the affected host and it was excluded from production, luckily I am not running any VMs on it yet. The logs are attached, don't be surprised with the hostnames :) Thanks in advance Cheers Erekle On 10/16/2017 03:37 PM, Dafna Ron wrote: 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(a)recogizer.de&gt; 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(a)recogizer.de&gt; 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(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users _______________________________________________ Users mailing list Users(a)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(a)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(a)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(a)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(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users