Status Update:

During migration between Host1 and Host3, links are being created and I see no 
Errors as before in the agent/broker logs.

Having all links in place, and having waited 24hours, for potential Engine 
updates, I tried to deploy HE on Host2:
Part1:

  *   From oVirt UI – HostedEngine Deploy
  *   Imeddiately on Host2 started seeing messages like “ Is the HostedEngine 
deployed ?”
  *   hosted-engine.conf got populated only with host_id and ca_path
  *   it failed
Part2:

  *   I noticed that during deployment no links in 
/var/rund/vdsm/storage/<hosted_storage_id> were created
  *   Copied hosted-engine.conf from Host1 to Host2
  *   Replace the host_id with correct value
  *   Reran the deployment
  *   Noticed that /var/rund/vdsm/storage/<hosted_storage_id> two links got 
created, one of them being the link to metadata_image
  *   Host1 and Host3 hosted-engine –vm-status was showing Host2 but with 
status unknown/stale data
  *   Deployment failed
Part3:

  *   Since link to conf_image was not created in first phase, I added it 
manually
  *   Populated the hosted-engine.conf
  *   Reran the deployment
  *   Same result
  *   Hosted-engine.conf on Host2 would end up with only host_id and ca_path 
values and deployment would fail

At this point, I cleaned up all hosted-engie remains from Host2 using 
ovirt-hosted-engine-cleanup and removed metadata of Host2 from host1 and Host3

I am out of ideas. It seems that Host1 and Host3 are happily operating, but I 
am unable to add any other hosts to HE pool.

Please assist if you have any ideas.
I am open to executing restore – but I would much rather like to at least 
discover where or what is the problem, before moving to planning restore.



-----
kind regards/met vriendelijke groeten

Marko Vrgotic
Sr. System Engineer @ System Administration

ActiveVideo
o: +31 (35) 6774131
m: +31 (65) 5734174
e: [email protected]<mailto:[email protected]>
w: www.activevideo.com<http://www.activevideo.com>

ActiveVideo Networks BV. Mediacentrum 3745 Joop van den Endeplein 1.1217 WJ 
Hilversum, The Netherlands. The information contained in this message may be 
legally privileged and confidential. It is intended to be read only by the 
individual or entity to whom it is addressed or by their designee. If the 
reader of this message is not the intended recipient, you are on notice that 
any distribution of this message, in any form, is strictly prohibited.  If you 
have received this message in error, please immediately notify the sender 
and/or ActiveVideo Networks, LLC by telephone at +1 408.931.9200 and delete or 
destroy any copy of this message.



From: Marko Vrgotic <[email protected]>
Date: Wednesday, 5 May 2021 at 12:16
To: Strahil Nikolov <[email protected]>, Yedidyah Bar David 
<[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: [ovirt-users] Re: Unable to migrate Engine to another HE Host
Both hosts have same agent.conf:

❯ cat <(ssh [email protected] 'cat 
/etc/ovirt-hosted-engine-ha/agent.conf')
[score]
# NOTE: These values must be the same for all hosts in the HA cluster!
base-score=3400
network-score-penalty=1600
not-uptodate-config-penalty=1000
mgmt-bridge-score-penalty=600
free-memory-score-penalty=400
cpu-load-score-penalty=1000
engine-retry-score-penalty=50
cpu-load-penalty-min=0.4
cpu-load-penalty-max=0.9
❯ cat <(ssh [email protected] 'cat 
/etc/ovirt-hosted-engine-ha/agent.conf')
[score]
# NOTE: These values must be the same for all hosts in the HA cluster!
base-score=3400
network-score-penalty=1600
not-uptodate-config-penalty=1000
mgmt-bridge-score-penalty=600
free-memory-score-penalty=400
cpu-load-score-penalty=1000
engine-retry-score-penalty=50
cpu-load-penalty-min=0.4
cpu-load-penalty-max=0.9

And its same on the good platform:

❯ ssh [email protected] 'cat /etc/ovirt-hosted-engine-ha/agent.conf'
[score]
# NOTE: These values must be the same for all hosts in the HA cluster!
base-score=3400
network-score-penalty=1600
not-uptodate-config-penalty=1000
mgmt-bridge-score-penalty=600
free-memory-score-penalty=400
cpu-load-score-penalty=1000
engine-retry-score-penalty=50
cpu-load-penalty-min=0.4
cpu-load-penalty-max=0.9

-----
kind regards/met vriendelijke groeten

Marko Vrgotic
Sr. System Engineer @ System Administration

ActiveVideo
o: +31 (35) 6774131
m: +31 (65) 5734174
e: [email protected]<mailto:[email protected]>
w: www.activevideo.com<http://www.activevideo.com>

ActiveVideo Networks BV. Mediacentrum 3745 Joop van den Endeplein 1.1217 WJ 
Hilversum, The Netherlands. The information contained in this message may be 
legally privileged and confidential. It is intended to be read only by the 
individual or entity to whom it is addressed or by their designee. If the 
reader of this message is not the intended recipient, you are on notice that 
any distribution of this message, in any form, is strictly prohibited.  If you 
have received this message in error, please immediately notify the sender 
and/or ActiveVideo Networks, LLC by telephone at +1 408.931.9200 and delete or 
destroy any copy of this message.



From: Strahil Nikolov <[email protected]>
Date: Wednesday, 5 May 2021 at 00:08
To: Marko Vrgotic <[email protected]>, Marko Vrgotic 
<[email protected]>, Yedidyah Bar David <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: [ovirt-users] Re: Unable to migrate Engine to another HE Host

***CAUTION: This email originated from outside of the organization. Do not 
click links or open attachments unless you recognize the sender!!!***
Yes,
/etc/ovirt-hosted-engine-ha/agent.conf should be enough.

Best Regards,
Strahil Nikolov
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