[Engine-devel] watchdog

[Michal Skrivanek]

On 11 Apr 2013, at 12:26, Yair Zaslavsky <yzaslavs at redhat.com> wrote:

> 
> 
> ----- Original Message -----
>> From: "Tomas Jelinek" <tjelinek at redhat.com>
>> To: "Laszlo Hornyak" <lhornyak at redhat.com>
>> Cc: "engine-devel" <engine-devel at ovirt.org>
>> Sent: Thursday, April 11, 2013 11:33:19 AM
>> Subject: Re: [Engine-devel] watchdog
>> 
>> Good that you have come up with this! So we will make sure to keep this info.
>> Thnx for coming up with it!
>> 
>> ----- Original Message -----
>>> From: "Laszlo Hornyak" <lhornyak at redhat.com>
>>> To: "Tomas Jelinek" <tjelinek at redhat.com>
>>> Cc: "engine-devel" <engine-devel at ovirt.org>
>>> Sent: Thursday, April 11, 2013 10:25:28 AM
>>> Subject: Re: [Engine-devel] watchdog
>>> 
>>> 
>>> 
>>> ----- Original Message -----
>>>> From: "Tomas Jelinek" <tjelinek at redhat.com>
>>>> To: "Laszlo Hornyak" <lhornyak at redhat.com>
>>>> Cc: "engine-devel" <engine-devel at ovirt.org>
>>>> Sent: Thursday, April 11, 2013 10:02:16 AM
>>>> Subject: Re: [Engine-devel] watchdog
>>>> 
>>>> 
>>>> 
>>>> ----- Original Message -----
>>>>> From: "Laszlo Hornyak" <lhornyak at redhat.com>
>>>>> To: "Itamar Heim" <iheim at redhat.com>
>>>>> Cc: "engine-devel" <engine-devel at ovirt.org>
>>>>> Sent: Thursday, April 11, 2013 9:56:32 AM
>>>>> Subject: Re: [Engine-devel] watchdog
>>>>> 
>>>>> Hi,
>>>>> 
>>>>> Isnt someone already working on removing the UI distinction between
>>>>> server
>>>>> and desktop?
>>>> Indeed :)
>>>> 
>>>>> 
>>>>> However the desktop/server distinction could be useful for scheduling
>>>>> information, I hope that will remain.
>>>> There will be a combo box: "optimized for server/desktop". That one
>>>> will set up the dialog like you would open the new server/desktop today.
>>>> But you will be able to change them - it will be just some sugar. But
>>>> there
>>>> is no reason
>>>> why would we enforce the disabling the e.g. soundcard for server. By
>>>> default
>>>> we will, but
>>>> you can enable it if you want.
>>> 
>>> Ok, so in engine we will still have the VmType in vmStatic?
>>> 
>>> I think it would make sense to use it in scheduling / load balancing
>>> - if a VM is a desktop and no user is connected to the console, then the VM
>>> is not in use, therefore it is a good candidate for saving power
>>> (hibernate,
>>> migrate, shutdown, or any other bad things that can happen to a VM)
>>> - if a VM is a server, usually no user connected, but it may still be used
>>> through its network. Therefore it may not be a good candidate to migrate.
> 
> is this indeed a valid assumption ("if VM is a server..." ) that a user will less connect to it?
IMHO if we want some new behavior/policy there should be a new corresponding property,  not desktop/server. That can be quite misleading and I would rather see it go away. Other than use it as a set of default values

> 
> 
>>> 
>>>> 
>>>>> 
>>>>> ----- Original Message -----
>>>>>> From: "Itamar Heim" <iheim at redhat.com>
>>>>>> To: "Laszlo Hornyak" <lhornyak at redhat.com>
>>>>>> Cc: "engine-devel" <engine-devel at ovirt.org>, "Andrew Cathrow"
>>>>>> <acathrow at redhat.com>
>>>>>> Sent: Wednesday, April 10, 2013 9:38:15 PM
>>>>>> Subject: Re: [Engine-devel] watchdog
>>>>>> 
>>>>>> On 04/10/2013 04:59 PM, Laszlo Hornyak wrote:
>>>>>>> Hi,
>>>>>>> 
>>>>>>> A new version of the watchdög feature is available in gerrit:
>>>>>>> 
>>>>>>> http://gerrit.ovirt.org/13057 - db
>>>>>>> http://gerrit.ovirt.org/13058 - bll
>>>>>>> http://gerrit.ovirt.org/13059 - frontend
>>>>>>> http://gerrit.ovirt.org/13060 - rest
>>>>>>> 
>>>>>>> http://www.ovirt.org/Features/Watchdog_engine_support
>>>>>>> 
>>>>>>> Since the last update the patchset has gone through major changes
>>>>>>> to
>>>>>>> meet
>>>>>>> the new architectureal and functional requirements.
>>>>>>> Also because of the rewrite this is again a preview version under
>>>>>>> testing
>>>>>>> with some missing functionality, therefore I re-introduced the
>>>>>>> [wip]
>>>>>>> flag
>>>>>>> on it.
>>>>>>> 
>>>>>>> Thx,
>>>>>>> Laszlo
>>>>>>> _______________________________________________
>>>>>>> Engine-devel mailing list
>>>>>>> Engine-devel at ovirt.org
>>>>>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
>>>>>> 
>>>>>> just a thought after looking at the feature page having different HA
>>>>>> dialog for server/desktop - I'd consider removing the distinction
>>>>>> between desktop and server in the GUI wrt HA (i.e., just both have
>>>>>> same
>>>>>> set of options)
>>>>>> 
>>>>>> (not blocking for this patch)
>>>>> _______________________________________________
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