oVirt 3.6 support and work well only on node with CentOS 7.3 or oVirt Node NG 4.1. I recommend using with oVirt 3.6 only CentOS 7.3 vault repo. http://vault.centos.org/7.3.1611/
 
 
23.01.2019, 19:29, "Sandro Bonazzola" <sbona...@redhat.com>:
 
 
Il giorno mar 1 gen 2019 alle ore 03:26 <jaherr...@usa.net> ha scritto:
Hi, I working on a CentOS7 based Ovirt 3.6 system (ovirt-engine/db on one machine, two separate ovirt vm hosts) which has been running fine but mostly ignored for 2-3 of years.  Recently it was decided to update the OS as it was far behind on security updates, so one host was put into maintenance mode, yum update'd, rebooted, and then it was attempted to take out of maintenance mode but it's "non-responsive" now.
 
Hi, please note oVirt 3.6 is no longer supported.
While waiting for 4.3 I would recommend to replace the non-responsive node with an oVirt 4.2.8 + CentOS 7.6 or oVirt Node 4.2.8 and plan to upgrade the whole data center.
 
 
 
 

If I look in /var/log/ovirt-engine/engine.log on the engine machine I see for this host (vmserver2):

"ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.GetCapabilitiesVDSCommand] (DefaultQuartzScheduler_Worker-36) [2bc0978d] Command 'GetCapabilitiesVDSCommand(HostName = vmserver2, VdsIdAndVdsVDSCommandParametersBase:{runAsync='true', hostId='6725086f-42c0-40eb-91f1-0f2411ea9432', vds='Host[vmserver2,6725086f-42c0-40eb-91f1-0f2411ea9432]'})' execution failed: org.ovirt.vdsm.jsonrpc.client.ClientConnectionException: Connection failed"  and thereafter more errors.  This keep repeating in the log.

In the Ovirt GUI I see multiple occurrences of log entries for the problem host:

"vmserver2...command failed: Vds timeout occurred"
"vmserver2...command failed: Heartbeat exceeded"
"vmserver2...command failed: internal error: Unknown CPU model Broadwell-noTSX-IBRS"

Firewall rules look identical to the host which is working normally but has not been updated.

Any thoughts about how to fix or further troubleshoot this?
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--

SANDRO BONAZZOLA

MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV

Red Hat EMEA

sbona...@redhat.com   

,

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