On Wed, Sep 7, 2016 at 8:06 AM, KY LO <lokoiyin@yahoo.com> wrote:
You can't migrate the engine to a normal host added via add host. To join the hosted-engine pool, you need to run hosted-engine --deploy and point to the same storage used by the engine. It will then be recognised as adding additional host capable of hosting the engine. See Hosted Engine Howto — oVirt Thanks.

Since 4.0 you can achieve that from the engine (web ui or REST api) without the need to manually run hosted-engine --deploy on additional hosts.


​
 




On Wednesday, September 7, 2016 12:59 AM, Osvaldo ALVAREZ POZO <alvarez@xtra-mail.fr> wrote:



Hello,

Thanks for the reply

but  i did not understood the following part  " Since 4.0 you can also choose to have your new host participating to the hosted-engine pool from the engine itself.
"

it's my first time using ovirt

coud you explain?



ovirt-ha-agent is a daemon that run on same of your hosts to provide HA capabilities for the engine VM, not all the hosts of your cluster could/should be involved in that process.
So, inside you cluster, you have a set of hosted-engine capable hosts.
 

De: "Simone Tiraboschi" <stirabos@redhat.com>
À: "alvarez" <alvarez@xtra-mail.fr>
Cc: "Artyom Lukianov" <alukiano@redhat.com>, "users" <users@ovirt.org>
Envoyé: Mardi 6 Septembre 2016 18:41:33
Objet: Re: [ovirt-users] ovirt hosted-engine deploy never works



On Tue, Sep 6, 2016 at 6:19 PM, Osvaldo ALVAREZ POZO <alvarez@xtra-mail.fr> wrote:
Hello,

Now I have 1 hoste_engine, 1 ovirt-node and 1 cluster

How do i add a node to the cluster?

Do I go to ovirt-engine and I add a node directly? or are there rpms to install fist?

You have just to install http://resources.ovirt.org/pub/yum-repo/ovirt-release40.rpm on your next host.
Than you can go to the engine in the hosts section of that cluster and choose New.
Since 4.0 you can also choose to have your new host participating to the hosted-engine pool from the engine itself.
 

thanks

Sincerily

De: "Simone Tiraboschi" <stirabos@redhat.com>
À: "alvarez" <alvarez@xtra-mail.fr>
Cc: "Artyom Lukianov" <alukiano@redhat.com>, "users" <users@ovirt.org>
Envoyé: Vendredi 2 Septembre 2016 13:38:05

Objet: Re: [ovirt-users] ovirt hosted-engine deploy never works



On Fri, Sep 2, 2016 at 12:39 PM, Osvaldo ALVAREZ POZO <alvarez@xtra-mail.fr> wrote:
Ok,

I have a LUN show as unntached.

how do I attach it?


 

one other question

do  have to add the ISCSI LUN where the hosted-engine was deployed?

No, the engine will do it automatically once the datacenter will be up.
 

Sincerily

De: "Simone Tiraboschi" <stirabos@redhat.com>
À: "alvarez" <alvarez@xtra-mail.fr>
Cc: "Artyom Lukianov" <alukiano@redhat.com>, "users" <users@ovirt.org>
Envoyé: Vendredi 2 Septembre 2016 12:09:32

Objet: Re: [ovirt-users] ovirt hosted-engine deploy never works



On Fri, Sep 2, 2016 at 11:49 AM, Osvaldo ALVAREZ POZO <alvarez@xtra-mail.fr> wrote:

Hello ,

when i connect to hosted_engine web-interface i get "the hosted Engine Storage Domain doesn't exist. it should be imported into the setup".

 waht does it means?


It will be automatically imported once you add your first storage domain for regular VMs.

The message is a bit confusing and indeed we have an open bug to change it:
 
sincerily

Inle
De: "Artyom Lukianov" <alukiano@redhat.com>
À: "alvarez" <alvarez@xtra-mail.fr>
Cc: "Simone Tiraboschi" <stirabos@redhat.com>, "users" <users@ovirt.org>
Envoyé: Jeudi 1 Septembre 2016 16:52:09

Objet: Re: [ovirt-users] ovirt hosted-engine deploy never works

Just run on your host hosted-engine --vm-status.

On Thu, Sep 1, 2016 at 5:47 PM, Osvaldo ALVAREZ POZO <alvarez@xtra-mail.fr> wrote:
hello,

I managed to install hoste-engine.
I think

 -systemctl enable haveged
systemctl start haveged

cat /proc/sys/kernel/random/entropy_avail
1888
it was helpfull

I lost connection for a while to the ovirt-node

But I think the hosted-engine vm is not in the iscsi LUN.
How can I see where is the VM located?

Thanks

De: "Simone Tiraboschi" <stirabos@redhat.com>
À: "alvarez" <alvarez@xtra-mail.fr>
Cc: "Gianluca Cecchi" <gianluca.cecchi@gmail.com>, "users" <users@ovirt.org>
Envoyé: Jeudi 1 Septembre 2016 12:12:39

Objet: Re: [ovirt-users] ovirt hosted-engine deploy never works



On Thu, Sep 1, 2016 at 12:06 PM, Osvaldo ALVAREZ POZO <alvarez@xtra-mail.fr> wrote:
Hello,

but the problem is that i am not able to finish the hosted_engine deploy. So, I am not able to modify the Vm, because procces stoped :-(

thanks for the help


Yes, adding entropy to the host should still help.
 
De: "Simone Tiraboschi" <stirabos@redhat.com>
À: "Gianluca Cecchi" <gianluca.cecchi@gmail.com>
Cc: "alvarez" <alvarez@xtra-mail.fr>, "users" <users@ovirt.org>
Envoyé: Jeudi 1 Septembre 2016 12:00:22
Objet: Re: [ovirt-users] ovirt hosted-engine deploy never works



On Thu, Sep 1, 2016 at 11:48 AM, Gianluca Cecchi <gianluca.cecchi@gmail.com> wrote:
On Thu, Sep 1, 2016 at 11:39 AM, Osvaldo ALVAREZ POZO <alvarez@xtra-mail.fr> wrote:
hello,

but normally it is not possible to install paquets on ovirt node
that's way I wonder how to install  haveged?

yum localinstall is this the command?

Thanks


Actually the haveged workaround is to apply on engine server, tipically when it is deployed as a VM, not the host.
HIH,
Gianluca


The effectiveness of HAVEGE (HArdware Volatile Entropy Gathering and Expansion) on virtual machines is quite debated.
Having more entropy on the host could also help, but yes, we also have to add a virtio-rng device to the engine VM:



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