[ovirt-users] Re: Unable to start ovirt-ha-agent on all hosts

Hi Didi! > On Sun, Dec 26, 2021 at 12:24 PM <martin(a)fulmo.org&gt; wrote: > > IIRC something similar was reported on the lists - that you can't > (always? easily?) migrate VMs between CentOS Linux 8 (.3? .4? not > sure) and current Stream. Is this mandatory for you? If not, you might > test on a test env stopping/starting your VMs and decide this is good > enough. Of course I tried, instead of migrating the VMs, simply stopping them on the Centos 8.5 hosts and starting them on the Centos Stream 8 host. It did not work, the network was not reachable but there was no error thrown in the engine appliance, no event, nothing. > Perhaps provide more details, if you have them. Did you put host3 to > maintenance? Remove it? etc. With everything I performed host3 was put into maintenance first. It has not been removed. I planned to remove it but then the error below (Unable to start ovirt-ha-agent on all hosts) started appearing. > Not sure where 'GATEWAY_IP' comes from, but it should be the actual IP > address, e.g.: I just replaced the actual gateway IP in the error message thrown with 'GATEWAY_IP', since the error message thrown does expose the gateway IP instead of the respective host IP. This issue does confirm that finding: https://lists.ovirt.org/archives/list/users@ovirt.org/message/DTEY6OTBIWN... > MainThread::INFO::2021-12-20 > 07:51:05,151::brokerlink::82::ovirt_hosted_engine_ha.lib.brokerlink.BrokerLink::(start_monitor) > Starting monitor network, options {'addr': '192.168.201.1', > 'network_test': 'dns', 'tcp_t_address': '', > 'tcp_t_port': ''} > > Check (and perhaps fix manually, if you can't/do not want to first > diagnose/fix your reinstallation) the line 'gateway=' in > /etc/ovirt-hosted-engine/hosted-engine.conf . Perhaps compare this > file to your other hosts - only the line 'host_id' should be different > between them. Everything in /etc/ovirt-hosted-engine/hosted-engine.conf is as you describe it. Only the host_id is different. I haven't touched that file either.