Dear oVirt,

I have three HE Hosts. Upon upgrade from 4.3.5 to 4.3.10 the Hosted Engine did not start anymore on Host2, but working just fine on Host1 and Host3.

I tried to Undeploy – Deploy on Host2 but I noticed that hosted-engine.conf  contains only ca path and host id. It looks like either Undeploy properly or Deploy is failing due to reason I am unable to find in the logs.

When checking the hosted-engine –vm-status, even though undeployed, the output was still containing Host2 in the list. Than I cleaned metadata on the Host1 and 3 for Host2 and at that point it was forgotten.

After that I tried adding the Host2 back to HE pool, first installed the Host2 with fresh OS and than added it to Hosts pool with HostedEngine DEPLOY option. Result was the same.

The VDSM on the Host2 was showing ERROR: “2021-04-16 06:47:30,422+0000 ERROR (periodic/3) [root] failed to retrieve Hosted Engine HA score '[Errno 2] No such file or directory'Is the Hosted Engine setup finished? (api:196)”

The broker is showing the error: “MainThread::WARNING::2021-04-16 06:47:27,514::storage_broker::97::ovirt_hosted_engine_ha.broker.storage_broker.StorageBroker::(__init__) Can't connect vdsm storage: 'metadata_image_UUID can't be 'None'

Atm, I am thinking of executing the /usr/sbin/ovirt-hosted-engine-cleanup but its effect is not clear to me. Is it going to cleanup any HE deploy remains from the Host its executed on, or its going to cleanup the other two Hosts, rendering my platfrom offline? I have been reading through https://www.ovirt.org/images/Hosted-Engine-4.3-deep-dive.pdf but its effect is not clear.

I would have tested it already but this issue is on our production platform, so I need some experts input before taking further action.

Please advise.

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kind regards/met vriendelijke groeten

Marko Vrgotic
Sr. System Engineer @ System Administration

ActiveVideo

o: +31 (35) 6774131

m: +31 (65) 5734174

e: m.vrgotic@activevideo.com
w: www.activevideo.com

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