[Engine-devel] watchdog

Thu Apr 11 11:10:04 UTC 2013

On 04/11/2013 01:57 PM, Laszlo Hornyak wrote:
> No what I meant is that
> if the VM is a server {
> not having a console connection to it does not mean that it is not used.
> }
>
> Therefore desktops on the same host with no console connection, they may be better candidates for migration. You can connect to servers.

I'd actually like to lose the distinction between server and desktop 
other than a set of optimizations.
i.e., if there is an optimization you want to make based on console 
being connected, model that and ask for that specifically (maybe I use 
desktop differently than you think)

>
> ----- Original Message -----
>> From: "Yair Zaslavsky" <yzaslavs at redhat.com>
>> To: "Tomas Jelinek" <tjelinek at redhat.com>
>> Cc: "Laszlo Hornyak" <lhornyak at redhat.com>, "engine-devel" <engine-devel at ovirt.org>
>> Sent: Thursday, April 11, 2013 12:26:35 PM
>> 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 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?
>>
>>
>>>>
>>>>>
>>>>>>
>>>>>> ----- 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)
>>>>>>>
>>>>>>>
>>>>>> _______________________________________________
>>>>>> Engine-devel mailing list
>>>>>> Engine-devel at ovirt.org
>>>>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
>>>>>>
>>>>>
>>>>
>>> _______________________________________________
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>>
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