[ovirt-users] Add more hosts

[Simone Tiraboschi]

On Thu, Sep 15, 2016 at 6:20 PM, Davide Ferrari <davide at billymob.com> wrote:

> Trying to set the maintenance gives me:
>
> [root at vm01 ~]# hosted-engine --set-maintenance --mode=global
> /usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/storage_backends.py:15:
> DeprecationWarning: vdscli uses xmlrpc. since ovirt 3.6 xmlrpc is
> deprecated, please use vdsm.jsonrpcvdscli
>   import vdsm.vdscli
>
>
> it's not vey clear if it worked and it's just a warning or since it's
> deprecated it didn't work at all
>

it's just a warning; to be really sure, you can check the status with:
   hosted-engine --vm-status


>
> 2016-09-15 17:34 GMT+02:00 Simone Tiraboschi <stirabos at redhat.com>:
>
>>
>>
>> On Thu, Sep 15, 2016 at 5:29 PM, Davide Ferrari <davide at billymob.com>
>> wrote:
>>
>>> How can I forcefully migrate the engine VM?
>>>
>>
>> You can try to migrate it from the engine.
>> If it doesn't work you can got to the first host,
>> set the global maintenance mode with
>>    hosted-engine --set-maintenance --mode=global
>> connect to the engine VM and shutdown it
>> restart the engine VM on the first host with:
>>    hosted-engine --vm-start
>>
>>
>>>
>>> 2016-09-15 17:22 GMT+02:00 Simone Tiraboschi <stirabos at redhat.com>:
>>>
>>>>
>>>>
>>>> On Thu, Sep 15, 2016 at 5:14 PM, Davide Ferrari <davide at billymob.com>
>>>> wrote:
>>>>
>>>>> All from the CLI. Right now in the GUI I have the "Reinstall" button
>>>>> greyed out. What's happening?
>>>>>
>>>>
>>>> I suggest to forcefully migrate the engine VM to the first host; remove
>>>> the other hosts from the engine and redeploy from there as
>>>> hosted-engine-hosts.
>>>>
>>>>
>>>>>
>>>>> 2016-09-15 16:57 GMT+02:00 Simone Tiraboschi <stirabos at redhat.com>:
>>>>>
>>>>>>
>>>>>>
>>>>>> On Thu, Sep 15, 2016 at 4:13 PM, Davide Ferrari <davide at billymob.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Strange..now it's working :? I've added successfully a fourth server
>>>>>>> to the cluster without touching anything, a part migrating the HE vm to
>>>>>>> another host.
>>>>>>> But now it seems that 2 of the hosts are not recognized as working.
>>>>>>> When I try to migrate the HostedEngine to another machine I get:
>>>>>>>
>>>>>>> The host hosted_engine_1 did not satisfy internal filter HA because
>>>>>>> it is not a Hosted Engine host.
>>>>>>> The host hosted_engine_3 did not satisfy internal filter HA because
>>>>>>> it is not a Hosted Engine host.
>>>>>>>
>>>>>>> hosted_engine_2 is in maintanaince mode right now and 4 is the one
>>>>>>> that is running the VM. The VM was first migrated from 1 to 2, then from 2
>>>>>>> it started giving those errors, then I successfully added 4 and I could
>>>>>>> migrate the VM to it, and now it is stuck there.
>>>>>>> I'm trying to look through the VDMS logs but oh boy, they are so
>>>>>>> verbose!
>>>>>>>
>>>>>>
>>>>>> Did you added your additional hosted-engine hosts from CLI or from
>>>>>> the web interface (there is special sub-panel in the add host dialog)?
>>>>>> I strongly recommend the second way.
>>>>>>
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> 2016-09-15 15:11 GMT+02:00 Davide Ferrari <davide at billymob.com>:
>>>>>>>
>>>>>>>> Hello again
>>>>>>>>
>>>>>>>> as I said I'm a beginner with OVirt and I was playing with a
>>>>>>>> proof-of-concept cluster with OVirt 4.0 + GlusterFS 3.8, following this
>>>>>>>> guide
>>>>>>>>
>>>>>>>> http://www.ovirt.org/blog/2016/03/up-and-running-with-ovirt-3-6/
>>>>>>>>
>>>>>>>> (it works smoothly with 4.0 too)
>>>>>>>> I've created the cluster and the engine is running as an higly
>>>>>>>> available VM in the cluster itself with hosted-engine --deploy but now I
>>>>>>>> want to add a fourth machine to the cluster but I get this error:
>>>>>>>>
>>>>>>>>  Cannot automatically add the host to cluster Default: Cannot add
>>>>>>>> Host. There is no available server in the cluster to probe the new server.
>>>>>>>>
>>>>>>>> both if I try to add an host from Ovirt AAdmin GUI or if I try to
>>>>>>>> run "hosted-engine --deploy" on the new machine. Is it possible to have
>>>>>>>> this cluster conf (with the engine running as a VM) with 4 or more
>>>>>>>> machines? What thing should I have to do?
>>>>>>>>
>>>>>>>> Thanks in advance
>>>>>>>>
>>>>>>>> --
>>>>>>>> Davide Ferrari
>>>>>>>> Senior Systems Engineer
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Davide Ferrari
>>>>>>> Senior Systems Engineer
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Users mailing list
>>>>>>> Users at ovirt.org
>>>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Davide Ferrari
>>>>> Senior Systems Engineer
>>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Davide Ferrari
>>> Senior Systems Engineer
>>>
>>
>>
>
>
> --
> Davide Ferrari
> Senior Systems Engineer
>
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