I have verified I was able to put one host into maintenance (the only one running VM was automatically migrated) and then select "Reinstall" and in the proposed window I select now "Deploy" in similar hosted engine section:
Engine status : {"health": "good", "vm": "up", "detail": "up"}
Score : 3400
stopped : False
Local maintenance : False
crc32 : 8e1ee066
Host timestamp : 429820
Extra metadata (valid at timestamp):
metadata_parse_version=1
metadata_feature_version=1
timestamp=429820 (Sun Nov 20 23:58:31 2016)
host-id=1
score=3400
maintenance=False
state=EngineUp
stopped=False
--== Host 2 status ==--
Status up-to-date : True
Hostname : 192.168.150.103
Host ID : 2
Engine status : {"reason": "vm not running on this host", "health": "bad", "vm": "down", "detail": "unknown"}
Score : 3400
stopped : False
Local maintenance : False
crc32 : 839f79f5
Host timestamp : 429736
Extra metadata (valid at timestamp):
metadata_parse_version=1
metadata_feature_version=1
timestamp=429736 (Sun Nov 20 23:58:37 2016)
host-id=2
score=3400
maintenance=False
state=EngineDown
stopped=False
[root@ovirt02 ~]#
Is it?
I was also able now to migrate the hosted engine vm to the second host and to connect without problems to its console.
I'm going to change also the third host.
Two notes:
1) it would be nice to pre-filter the drop down box when you have to choose the host where migrate the hosted engine...
So that if there are no hosts available you will be given a related message without choice at all and if there is a subset of eligible hosts inside the cluster, you will be proposed only to choose one of them and not all the hosts inside the cluster.
2) If the gui option becomes the default and preferred way to deploy hosts in self hosted engine environments I think it should be put in clearer shape that if you follow the default action you would not have high availability for the hosted engine vm.
Or changing the default action to "Deploy", or showing a popup if the hosted engine vm has only one host configured for it but there are other hosts in the cluster.