[ovirt-users] ovirt hosted-engine deploy never works

Wed Sep 7 07:20:35 UTC 2016

On Wed, Sep 7, 2016 at 8:06 AM, KY LO <lokoiyin at 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
> <https://www.ovirt.org/documentation/how-to/hosted-engine/#installing-additional-nodes>
>  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.

>
> Hosted Engine Howto — oVirt
>
> <https://www.ovirt.org/documentation/how-to/hosted-engine/#installing-additional-nodes>
>
>
>
> On Wednesday, September 7, 2016 12:59 AM, Osvaldo ALVAREZ POZO <
> alvarez at 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 at redhat.com>
> *À: *"alvarez" <alvarez at xtra-mail.fr>
> *Cc: *"Artyom Lukianov" <alukiano at redhat.com>, "users" <users at 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 at 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 at redhat.com>
> *À: *"alvarez" <alvarez at xtra-mail.fr>
> *Cc: *"Artyom Lukianov" <alukiano at redhat.com>, "users" <users at 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 at xtra-mail.fr> wrote:
>
> Ok,
>
> I have a LUN show as unntached.
>
> how do I attach it?
>
>
> http://www.ovirt.org/documentation/quickstart/quickstart-guide/#Create_an_
> iSCSI_Data_Domain
>
>
>
> 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 at redhat.com>
> *À: *"alvarez" <alvarez at xtra-mail.fr>
> *Cc: *"Artyom Lukianov" <alukiano at redhat.com>, "users" <users at 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 at 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:
> https://bugzilla.redhat.com/show_bug.cgi?id=1358313
>
>
> sincerily
>
> Inle
> ------------------------------
> *De: *"Artyom Lukianov" <alukiano at redhat.com>
> *À: *"alvarez" <alvarez at xtra-mail.fr>
> *Cc: *"Simone Tiraboschi" <stirabos at redhat.com>, "users" <users at 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 at xtra-mail.fr
> > wrote:
>
> hello,
>
> I managed to install hoste-engine.
> I think
>
> yum localinstall http://dl.fedoraproject.org/
> pub/epel/7/x86_64/h/haveged-1.9.1-1.el7.x86_64.rpm
>  -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 at redhat.com>
> *À: *"alvarez" <alvarez at xtra-mail.fr>
> *Cc: *"Gianluca Cecchi" <gianluca.cecchi at gmail.com>, "users" <
> users at 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 at 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 at redhat.com>
> *À: *"Gianluca Cecchi" <gianluca.cecchi at gmail.com>
> *Cc: *"alvarez" <alvarez at xtra-mail.fr>, "users" <users at 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 at gmail.com> wrote:
>
> On Thu, Sep 1, 2016 at 11:39 AM, Osvaldo ALVAREZ POZO <
> alvarez at 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:
> https://bugzilla.redhat.com/show_bug.cgi?id=1357246
>
>
>
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>
>
>
>
>
>
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