[ovirt-users] 3.6 : Hosted engine High Availability

[Alexis HAUSER]

Thank you for your explanations, this is very clear now :)



Actually I was confused because "this host" is used in several different contexts, if I am right :

1 - For the engine (which is not a host, but a guest) :
"Enter the name which will be used to identify this host inside the Administrator Portal [hosted_engine_2]"

2 - For the Host
It asks the same things for the FQDN, but not for the engine this time, for the real "host"

Please confirm me this, so I will know if I have to open a bug for this.



Now my error is the following :

"[ ERROR ] Failed to execute stage 'Closing up': Specified cluster does not exist: Default"

I think it assume I didn't change the name of the default cluster after deploying the first host. I will try to workaround with this by renaming the datacenter
I will check if a bug if open on the bugzilla about this and if not I'll open one.





----- Mail original -----
De: "Simone Tiraboschi" <stirabos at redhat.com>
À: "Alexis HAUSER" <alexis.hauser at telecom-bretagne.eu>
Cc: "users" <users at ovirt.org>
Envoyé: Jeudi 25 Août 2016 16:56:17
Objet: Re: [ovirt-users] 3.6 : Hosted engine High Availability

On Thu, Aug 25, 2016 at 4:26 PM, Alexis HAUSER
<alexis.hauser at telecom-bretagne.eu> wrote:
>
>> Can you please share your hosted-engine-setup logs?
>
> Yes of course, here they are :)

OK, the issue is here:
2016-08-25 12:49:04 DEBUG otopi.plugins.otopi.dialog.human
human.queryString:156 query OVESETUP_NETWORK_FQDN_HOST_HOSTNAME
2016-08-25 12:49:04 DEBUG otopi.plugins.otopi.dialog.human
dialog.__logString:219 DIALOG:SEND                 Please provide the
address of this host.
2016-08-25 12:49:04 DEBUG otopi.plugins.otopi.dialog.human
dialog.__logString:219 DIALOG:SEND                 Note: The engine VM
and all the other hosts should be able to correctly resolve it.
2016-08-25 12:49:04 DEBUG otopi.plugins.otopi.dialog.human
dialog.__logString:219 DIALOG:SEND                 Host address:
[localhost.localdomain]:
2016-08-25 12:49:37 DEBUG otopi.plugins.otopi.dialog.human
dialog.__logString:219 DIALOG:RECEIVE    vm-rhemgr.mydomain.com
2016-08-25 12:49:37 DEBUG
otopi.plugins.ovirt_hosted_engine_setup.network.bridge
hostname.test_hostname:411 test_hostname exception
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/ovirt_setup_lib/hostname.py",
line 407, in test_hostname
    not_local_text,
  File "/usr/lib/python2.7/site-packages/ovirt_setup_lib/hostname.py",
line 252, in _validateFQDNresolvability
    fqdn=fqdn,
RuntimeError: vm-rhemgr.mydomain.com did not resolve into an IP address
2016-08-25 12:49:37 ERROR
otopi.plugins.ovirt_hosted_engine_setup.network.bridge
dialog.queryEnvKey:115 Host name is not valid: vm-rhemgr.mydomain.com
did not resolve into an IP address



'Please provide the address of THIS host.' means that you have to
enter/validate the address of the host you are going to add (the host
where you are running hosted-engine --deploy command).

Let's try to recap:
the fqdn of your engine VM is 'vm-rhemgr.mydomain.com',
the fqdn of your host is currently 'localhost.localdomain' but it's
not acceptable (try to run 'ssh localhost.localdomain' on the engine
VM and see where are you getting...)

So you have just to configure a valid fqdn on your additional host
(something like 'my2ndhost.mydomain.com') and confirm it when asked by
that question.

Normally we suggest to rely on a properly configured DNS; you can just
work entering values under '/etc/hosts' but it's up to you to properly
maintain it:
- the engine VM should be able to resolve the address of all the hosts
to contact them: this is not true in your env, with
'localhost.localdomain' your engine VM will not reach your host...
- each host should be able to resolve the address of all the other
hosts and also the address of the engine VM: this is not true in your
env as I read 'RuntimeError: vm-rhemgr.mydomain.com did not resolve
into an IP address'