I think that you can try to set one of the HE hosts into maintenance and then 
use UI to 'reinstall'. Don't forget to mark the host as a HE host also (some 
dropdown in the UI wizard).

Best Regards,
Strahil Nikolov






В вторник, 8 септември 2020 г., 10:24:00 Гринуич+3, Yedidyah Bar David 
<[email protected]> написа: 





On Tue, Sep 8, 2020 at 4:33 AM ddqlo <[email protected]> wrote:
> my hosts cpu:Intel Haswell-noTSX Family
> cluster cpu:Intel Haswell-noTSX Family
> HostedEngine vm cpu:Intel Haswell-noTSX Family
> 
> When I tried to put the host in maintenance in web UI, I got an error:
> 
> 

Adding Arik. Arik - any idea what else to test?
 
> 
> 
> When I typed the command, I got this:
> [root@node22 ~]# hosted-engine --set-maintenance --mode=local
> Unable to enter local maintenance mode: the engine VM is running on the 
> current host, please migrate it before entering local maintenance mode.

Sorry, I wasn't aware that this was disabled since 4.3.5, about a year ago:

https://gerrit.ovirt.org/#/q/Ia06b9bc6e65a7937e6d6462c001b59572369fe66,n,z

So you'll have to first fix migration on engine level.

Best regards,

 
> 
> 
> 
> 
> At 2020-09-07 12:52:01, "Yedidyah Bar David" <[email protected]> wrote:
>>On Mon, Sep 7, 2020 at 4:13 AM ddqlo <[email protected]> wrote:
>>>
>>> I have found some engine logs:
>>>
>>> 2020-09-07 09:00:45,428+08 INFO  
>>> [org.ovirt.engine.core.bll.scheduling.SchedulingManager] (default task-6) 
>>> [29259482-1515-4c10-8458-59354a0953ac] Candidate host 'node22' 
>>> ('585b374b-4c82-4f5c-aad7-196d9f5d5625') was filtered out by 
>>> 'VAR__FILTERTYPE__INTERNAL' filter 'CPU' (correlation id: null)
>>>
>>> 2020-09-07 09:00:45,428+08 INFO  
>>> [org.ovirt.engine.core.bll.scheduling.SchedulingManager] (default task-6) 
>>> [29259482-1515-4c10-8458-59354a0953ac] Candidate host 'node28' 
>>> ('a678a15d-19e6-46f2-80bf-c3181197a0a6') was filtered out by 
>>> 'VAR__FILTERTYPE__INTERNAL' filter 'CPU' (correlation id: null)
>>>
>>>
>>> It seems that both of the two hosts were filtered out.
>>
>>So please check cpu conf of the hosts, cluster, VM, etc.
>>
>>One more thing you can try is to force putting the host in maintenance
>>- this will require migrating the engine VM.
>>
>>If the engine refuses to do that, because it can't migrate the VM due
>>to above issue, you can try instead:
>>
>>hosted-engine --set-maintenance --mode=local
>>
>>I think this overrides the engine and will force a migration. Didn't
>>try recently.
>>
>>Best regards,
>>
>>>
>>>
>>>
>>>
>>> 在 2020-09-07 07:50:55,"ddqlo" <[email protected]> 写道:
>>>
>>> I could not find any logs because the migration button is disabled in the 
>>> web UI. It seems that the engine migration operation is prevented at first. 
>>> Any other ideas? Thanks!
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> 在 2020-09-01 00:06:19,"Strahil Nikolov" <[email protected]> 写道:
>>> >I'm running oVirt 4.3.10 and I can migrate my Engine from node to node.
>>> >I had one similar issue , but powering off and on the HE has fixed it.
>>> >
>>> >You have to check the vdsm log on the source and on destination in order 
>>> >to figure out what is going on.
>>> >Also you might consider checking the libvirt logs on the destination.
>>> >
>>> >Best Regards,
>>> >Strahil Nikolov
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >В понеделник, 31 август 2020 г., 10:47:22 Гринуич+3, ddqlo <[email protected]> 
>>> >написа:
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >Thanks! The scores of all nodes are not '0'. I find that someone has 
>>> >already asked a question like this. It seems that  this feature has been 
>>> >disabled in 4.3. I am not sure if it is enabled in 4.4.
>>> >
>>> >
>>> >在 2020-08-29 02:27:03,"Strahil Nikolov" <[email protected]> :
>>> >>Have you checked under a shell the output of 'hosted-engine --vm-status' 
>>> >>. Check the Score of the hosts. Maybe there is a node with score of '0' ?
>>> >>
>>> >>Best Regards,
>>> >>Strahil Nikolov
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>В вторник, 25 август 2020 г., 13:46:18 Гринуич+3, 董青龙 <[email protected]> 
>>> >>написа:
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>Hi all,
>>> >>        I have an ovirt4.3.10.4 environment of 2 hosts. Normal vms in 
>>> >>this environment could be migrated, but the hosted engine vm could not be 
>>> >>migrated. Anyone can help? Thanks a lot!
>>> >>
>>> >>hosts status:
>>> >>
>>> >>normal vm migration:
>>> >>
>>> >>hosted engine vm migration:
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>_______________________________________________
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>>> >
>>> >
>>> >
>>> >
>>> >
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>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
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>>
>>
>>
>>-- 
>>Didi
> 
> 
> 
> 
>  


-- 
Didi
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