3:59 p.m.
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
9:38 p.m.
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(a)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)
9:56 a.m.
Hi,
Isnt someone already working on removing the UI distinction between server and desktop?
However the desktop/server distinction could be useful for scheduling information, I hope
that will remain.
----- Original Message -----
From: "Itamar Heim" <iheim(a)redhat.com>
To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
Cc: "engine-devel" <engine-devel(a)ovirt.org>, "Andrew Cathrow"
<acathrow(a)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(a)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)
10:02 a.m.
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
To: "Itamar Heim" <iheim(a)redhat.com>
Cc: "engine-devel" <engine-devel(a)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.
----- Original Message -----
> From: "Itamar Heim" <iheim(a)redhat.com>
> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> Cc: "engine-devel" <engine-devel(a)ovirt.org>, "Andrew
Cathrow"
> <acathrow(a)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(a)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(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/engine-devel
10:25 a.m.
----- Original Message -----
From: "Tomas Jelinek" <tjelinek(a)redhat.com>
To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
Cc: "engine-devel" <engine-devel(a)ovirt.org>
Sent: Thursday, April 11, 2013 10:02:16 AM
Subject: Re: [Engine-devel] watchdog
----- Original Message -----
> From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> To: "Itamar Heim" <iheim(a)redhat.com>
> Cc: "engine-devel" <engine-devel(a)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.
>
> ----- Original Message -----
> > From: "Itamar Heim" <iheim(a)redhat.com>
> > To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > Cc: "engine-devel" <engine-devel(a)ovirt.org>, "Andrew
Cathrow"
> > <acathrow(a)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(a)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(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/engine-devel
>
10:33 a.m.
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(a)redhat.com>
To: "Tomas Jelinek" <tjelinek(a)redhat.com>
Cc: "engine-devel" <engine-devel(a)ovirt.org>
Sent: Thursday, April 11, 2013 10:25:28 AM
Subject: Re: [Engine-devel] watchdog
----- Original Message -----
> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> Cc: "engine-devel" <engine-devel(a)ovirt.org>
> Sent: Thursday, April 11, 2013 10:02:16 AM
> Subject: Re: [Engine-devel] watchdog
>
>
>
> ----- Original Message -----
> > From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > To: "Itamar Heim" <iheim(a)redhat.com>
> > Cc: "engine-devel" <engine-devel(a)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.
>
> >
> > ----- Original Message -----
> > > From: "Itamar Heim" <iheim(a)redhat.com>
> > > To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > > Cc: "engine-devel" <engine-devel(a)ovirt.org>, "Andrew
Cathrow"
> > > <acathrow(a)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(a)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(a)ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/engine-devel
> >
>
12:26 p.m.
----- Original Message -----
From: "Tomas Jelinek" <tjelinek(a)redhat.com>
To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
> To: "Tomas Jelinek" <tjelinek(a)redhat.com>
> Cc: "engine-devel" <engine-devel(a)ovirt.org>
> Sent: Thursday, April 11, 2013 10:25:28 AM
> Subject: Re: [Engine-devel] watchdog
>
>
>
> ----- Original Message -----
> > From: "Tomas Jelinek" <tjelinek(a)redhat.com>
> > To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > Cc: "engine-devel" <engine-devel(a)ovirt.org>
> > Sent: Thursday, April 11, 2013 10:02:16 AM
> > Subject: Re: [Engine-devel] watchdog
> >
> >
> >
> > ----- Original Message -----
> > > From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > > To: "Itamar Heim" <iheim(a)redhat.com>
> > > Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
> > > > To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > > > Cc: "engine-devel" <engine-devel(a)ovirt.org>,
"Andrew Cathrow"
> > > > <acathrow(a)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(a)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(a)ovirt.org
> > > http://lists.ovirt.org/mailman/listinfo/engine-devel
> > >
> >
>
_______________________________________________
Engine-devel mailing list
Engine-devel(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/engine-devel
12:57 p.m.
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.
----- Original Message -----
From: "Yair Zaslavsky" <yzaslavs(a)redhat.com>
To: "Tomas Jelinek" <tjelinek(a)redhat.com>
Cc: "Laszlo Hornyak" <lhornyak(a)redhat.com>, "engine-devel"
<engine-devel(a)ovirt.org>
Sent: Thursday, April 11, 2013 12:26:35 PM
Subject: Re: [Engine-devel] watchdog
----- Original Message -----
> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
> > To: "Tomas Jelinek" <tjelinek(a)redhat.com>
> > Cc: "engine-devel" <engine-devel(a)ovirt.org>
> > Sent: Thursday, April 11, 2013 10:25:28 AM
> > Subject: Re: [Engine-devel] watchdog
> >
> >
> >
> > ----- Original Message -----
> > > From: "Tomas Jelinek" <tjelinek(a)redhat.com>
> > > To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > > Cc: "engine-devel" <engine-devel(a)ovirt.org>
> > > Sent: Thursday, April 11, 2013 10:02:16 AM
> > > Subject: Re: [Engine-devel] watchdog
> > >
> > >
> > >
> > > ----- Original Message -----
> > > > From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > > > To: "Itamar Heim" <iheim(a)redhat.com>
> > > > Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
> > > > > To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > > > > Cc: "engine-devel" <engine-devel(a)ovirt.org>,
"Andrew Cathrow"
> > > > > <acathrow(a)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(a)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(a)ovirt.org
> > > > http://lists.ovirt.org/mailman/listinfo/engine-devel
> > > >
> > >
> >
> _______________________________________________
> Engine-devel mailing list
> Engine-devel(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/engine-devel
>
1:10 p.m.
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(a)redhat.com>
> To: "Tomas Jelinek" <tjelinek(a)redhat.com>
> Cc: "Laszlo Hornyak" <lhornyak(a)redhat.com>, "engine-devel"
<engine-devel(a)ovirt.org>
> Sent: Thursday, April 11, 2013 12:26:35 PM
> Subject: Re: [Engine-devel] watchdog
>
>
>
> ----- Original Message -----
>> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>> Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
>>> To: "Tomas Jelinek" <tjelinek(a)redhat.com>
>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>
>>> Sent: Thursday, April 11, 2013 10:25:28 AM
>>> Subject: Re: [Engine-devel] watchdog
>>>
>>>
>>>
>>> ----- Original Message -----
>>>> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
>>>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>
>>>> Sent: Thursday, April 11, 2013 10:02:16 AM
>>>> Subject: Re: [Engine-devel] watchdog
>>>>
>>>>
>>>>
>>>> ----- Original Message -----
>>>>> From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>>>> To: "Itamar Heim" <iheim(a)redhat.com>
>>>>> Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
>>>>>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>>>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>,
"Andrew Cathrow"
>>>>>> <acathrow(a)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(a)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(a)ovirt.org
>>>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
>>>>>
>>>>
>>>
>> _______________________________________________
>> Engine-devel mailing list
>> Engine-devel(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/engine-devel
>>
>
_______________________________________________
Engine-devel mailing list
Engine-devel(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/engine-devel
1:11 p.m.
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
To: "Yair Zaslavsky" <yzaslavs(a)redhat.com>
Cc: "Tomas Jelinek" <tjelinek(a)redhat.com>, "engine-devel"
<engine-devel(a)ovirt.org>
Sent: Thursday, April 11, 2013 1:57:04 PM
Subject: Re: [Engine-devel] watchdog
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.
Used is a more general term than "someone is connected to" - for example, you
may have a machine running some internal calculation which takes a considerable amount of
time, and you may have a user
that performs ssh to that machine (let's say once in an hour) and runs some utility
that reports the status of the calculation.
}
Therefore desktops on the same host with no console connection, they may be
better candidates for migration. You can connect to servers.
----- Original Message -----
> From: "Yair Zaslavsky" <yzaslavs(a)redhat.com>
> To: "Tomas Jelinek" <tjelinek(a)redhat.com>
> Cc: "Laszlo Hornyak" <lhornyak(a)redhat.com>,
"engine-devel"
> <engine-devel(a)ovirt.org>
> Sent: Thursday, April 11, 2013 12:26:35 PM
> Subject: Re: [Engine-devel] watchdog
>
>
>
> ----- Original Message -----
> > From: "Tomas Jelinek" <tjelinek(a)redhat.com>
> > To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
> > > To: "Tomas Jelinek" <tjelinek(a)redhat.com>
> > > Cc: "engine-devel" <engine-devel(a)ovirt.org>
> > > Sent: Thursday, April 11, 2013 10:25:28 AM
> > > Subject: Re: [Engine-devel] watchdog
> > >
> > >
> > >
> > > ----- Original Message -----
> > > > From: "Tomas Jelinek" <tjelinek(a)redhat.com>
> > > > To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > > > Cc: "engine-devel" <engine-devel(a)ovirt.org>
> > > > Sent: Thursday, April 11, 2013 10:02:16 AM
> > > > Subject: Re: [Engine-devel] watchdog
> > > >
> > > >
> > > >
> > > > ----- Original Message -----
> > > > > From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > > > > To: "Itamar Heim" <iheim(a)redhat.com>
> > > > > Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
> > > > > > To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> > > > > > Cc: "engine-devel"
<engine-devel(a)ovirt.org>, "Andrew Cathrow"
> > > > > > <acathrow(a)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(a)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(a)ovirt.org
> > > > > http://lists.ovirt.org/mailman/listinfo/engine-devel
> > > > >
> > > >
> > >
> > _______________________________________________
> > Engine-devel mailing list
> > Engine-devel(a)ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/engine-devel
> >
>
2:54 p.m.
Hi,
It is not really an optimization based only on console connection. In my opinion this
should be a decision factor when determining which VM to migrate from an overloaded host.
If it is a desktop and no console connection, then it is better candidate than a desktop
with console connection or a server with or without console connection. Basically this
logic would just want to minimize the pain caused by the short lag when a VM is live
migrated.
Can I assume that a Desktop is only used when a console is connected?
----- Original Message -----
From: "Itamar Heim" <iheim(a)redhat.com>
To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
Cc: "Yair Zaslavsky" <yzaslavs(a)redhat.com>, "engine-devel"
<engine-devel(a)ovirt.org>
Sent: Thursday, April 11, 2013 1:10:04 PM
Subject: Re: [Engine-devel] watchdog
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(a)redhat.com>
>> To: "Tomas Jelinek" <tjelinek(a)redhat.com>
>> Cc: "Laszlo Hornyak" <lhornyak(a)redhat.com>,
"engine-devel"
>> <engine-devel(a)ovirt.org>
>> Sent: Thursday, April 11, 2013 12:26:35 PM
>> Subject: Re: [Engine-devel] watchdog
>>
>>
>>
>> ----- Original Message -----
>>> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
>>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>> Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
>>>> To: "Tomas Jelinek" <tjelinek(a)redhat.com>
>>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>
>>>> Sent: Thursday, April 11, 2013 10:25:28 AM
>>>> Subject: Re: [Engine-devel] watchdog
>>>>
>>>>
>>>>
>>>> ----- Original Message -----
>>>>> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
>>>>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>
>>>>> Sent: Thursday, April 11, 2013 10:02:16 AM
>>>>> Subject: Re: [Engine-devel] watchdog
>>>>>
>>>>>
>>>>>
>>>>> ----- Original Message -----
>>>>>> From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>>>>> To: "Itamar Heim" <iheim(a)redhat.com>
>>>>>> Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
>>>>>>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>>>>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>,
"Andrew Cathrow"
>>>>>>> <acathrow(a)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(a)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(a)ovirt.org
>>>>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
>>>>>>
>>>>>
>>>>
>>> _______________________________________________
>>> Engine-devel mailing list
>>> Engine-devel(a)ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
>>>
>>
> _______________________________________________
> Engine-devel mailing list
> Engine-devel(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/engine-devel
>
5:29 p.m.
On 11 Apr 2013, at 12:26, Yair Zaslavsky <yzaslavs(a)redhat.com> wrote:
----- Original Message -----
> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
>> To: "Tomas Jelinek" <tjelinek(a)redhat.com>
>> Cc: "engine-devel" <engine-devel(a)ovirt.org>
>> Sent: Thursday, April 11, 2013 10:25:28 AM
>> Subject: Re: [Engine-devel] watchdog
>>
>>
>>
>> ----- Original Message -----
>>> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
>>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>
>>> Sent: Thursday, April 11, 2013 10:02:16 AM
>>> Subject: Re: [Engine-devel] watchdog
>>>
>>>
>>>
>>> ----- Original Message -----
>>>> From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>>> To: "Itamar Heim" <iheim(a)redhat.com>
>>>> Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
>>>>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>,
"Andrew Cathrow"
>>>>> <acathrow(a)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(a)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(a)ovirt.org
>>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
> _______________________________________________
> Engine-devel mailing list
> Engine-devel(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/engine-devel
_______________________________________________
Engine-devel mailing list
Engine-devel(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/engine-devel
2:07 p.m.
----- Original Message -----
From: "Michal Skrivanek" <mskrivan(a)redhat.com>
To: "Yair Zaslavsky" <yzaslavs(a)redhat.com>
Cc: "engine-devel" <engine-devel(a)ovirt.org>
Sent: Thursday, April 11, 2013 5:29:53 PM
Subject: Re: [Engine-devel] watchdog
On 11 Apr 2013, at 12:26, Yair Zaslavsky <yzaslavs(a)redhat.com> wrote:
>
>
> ----- Original Message -----
>> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>> Cc: "engine-devel" <engine-devel(a)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(a)redhat.com>
>>> To: "Tomas Jelinek" <tjelinek(a)redhat.com>
>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>
>>> Sent: Thursday, April 11, 2013 10:25:28 AM
>>> Subject: Re: [Engine-devel] watchdog
>>>
>>>
>>>
>>> ----- Original Message -----
>>>> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
>>>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>
>>>> Sent: Thursday, April 11, 2013 10:02:16 AM
>>>> Subject: Re: [Engine-devel] watchdog
>>>>
>>>>
>>>>
>>>> ----- Original Message -----
>>>>> From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>>>> To: "Itamar Heim" <iheim(a)redhat.com>
>>>>> Cc: "engine-devel" <engine-devel(a)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
Sure, let's call it something else, but this is a typical behavior expected from the
desktop/server property. So what we are going to do is that remove the property and throw
away all the related data, while when (if ever) we get the new property (behaveAsDesktop,
notUsedWhenNotConnected, whatever we call it) the users of the system will set this
property for the VM's that used to be desktops. We could save that work for the
users.
Also, it may appear to be an edge-case, but for a good scheduling in my opinion this is
important.
>
>
>>>
>>>>
>>>>>
>>>>> ----- Original Message -----
>>>>>> From: "Itamar Heim" <iheim(a)redhat.com>
>>>>>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
>>>>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>,
"Andrew Cathrow"
>>>>>> <acathrow(a)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(a)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(a)ovirt.org
>>>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
>> _______________________________________________
>> Engine-devel mailing list
>> Engine-devel(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/engine-devel
> _______________________________________________
> Engine-devel mailing list
> Engine-devel(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/engine-devel
_______________________________________________
Engine-devel mailing list
Engine-devel(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/engine-devel
2:45 p.m.
--=-/FNqRuFDJyJmcMp652r2
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Laszlo Hornyak p=C3=AD=C5=A1e v P=C3=A1 12. 04. 2013 v 08:07 -0400:
=20
----- Original Message -----
> From: "Michal Skrivanek" <mskrivan(a)redhat.com>
> To: "Yair Zaslavsky" <yzaslavs(a)redhat.com>
> Cc: "engine-devel" <engine-devel(a)ovirt.org>
> Sent: Thursday, April 11, 2013 5:29:53 PM
> Subject: Re: [Engine-devel] watchdog
>=20
>=20
>=20
> On 11 Apr 2013, at 12:26, Yair Zaslavsky <yzaslavs(a)redhat.com> wrote:
>=20
> >=20
> >=20
> > ----- Original Message -----
> >> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
> >> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> >> Cc: "engine-devel" <engine-devel(a)ovirt.org>
> >> Sent: Thursday, April 11, 2013 11:33:19 AM
> >> Subject: Re: [Engine-devel] watchdog
> >>=20
> >> Good that you have come up with this! So we will make sure to keep t=
his
> >> info.
> >> Thnx for coming up with it!
> >>=20
> >> ----- Original Message -----
> >>> From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> >>> To: "Tomas Jelinek" <tjelinek(a)redhat.com>
> >>> Cc: "engine-devel" <engine-devel(a)ovirt.org>
> >>> Sent: Thursday, April 11, 2013 10:25:28 AM
> >>> Subject: Re: [Engine-devel] watchdog
> >>>=20
> >>>=20
> >>>=20
> >>> ----- Original Message -----
> >>>> From: "Tomas Jelinek" <tjelinek(a)redhat.com>
> >>>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> >>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>
> >>>> Sent: Thursday, April 11, 2013 10:02:16 AM
> >>>> Subject: Re: [Engine-devel] watchdog
> >>>>=20
> >>>>=20
> >>>>=20
> >>>> ----- Original Message -----
> >>>>> From: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> >>>>> To: "Itamar Heim" <iheim(a)redhat.com>
> >>>>> Cc: "engine-devel" <engine-devel(a)ovirt.org>
> >>>>> Sent: Thursday, April 11, 2013 9:56:32 AM
> >>>>> Subject: Re: [Engine-devel] watchdog
> >>>>>=20
> >>>>> Hi,
> >>>>>=20
> >>>>> Isnt someone already working on removing the UI distinction
betwe=
en
> >>>>> server
> >>>>> and desktop?
> >>>> Indeed :)
> >>>>=20
> >>>>>=20
> >>>>> However the desktop/server distinction could be useful for
schedu=
ling
> >>>>> information, I hope that will remain.
> >>>> There will be a combo box: "optimized for
server/desktop". That on=
e
> >>>> 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.
> >>>=20
> >>> Ok, so in engine we will still have the VmType in vmStatic?
> >>>=20
> >>> I think it would make sense to use it in scheduling / load balancin=
g
> >>> - if a VM is a desktop and no user is connected to
the console, the=
n 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 mi=
grate.
> >=20
> > is this indeed a valid assumption ("if VM is a server..." ) that a
us=
er
> > will less connect to it?
> IMHO if we want some new behavior/policy there should be a new correspo=
nding
> 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
=20
Sure, let's call it something else, but this is a typical behavior expect=
ed
from the desktop/server property.=20
Well there could be property with different default values for desktop and =
servers, couldn't it? ;) Think about memory overcommit or default disk allo=
cation for example.
David
So what we are going to do is that remove the property and throw away
all=
the related data, while when (if ever) we get the new property (behaveAsDe=
sktop, notUsedWhenNotConnected, whatever we call it) the users of the syste=
m will set this property for the VM's that used to be desktops. We could sa=
ve that work for the users.
=20
Also, it may appear to be an edge-case, but for a good scheduling in my o=
pinion
this is important.
=20
>=20
> >=20
> >=20
> >>>=20
> >>>>=20
> >>>>>=20
> >>>>> ----- Original Message -----
> >>>>>> From: "Itamar Heim" <iheim(a)redhat.com>
> >>>>>> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> >>>>>> Cc: "engine-devel"
<engine-devel(a)ovirt.org>, "Andrew Cathrow"
> >>>>>> <acathrow(a)redhat.com>
> >>>>>> Sent: Wednesday, April 10, 2013 9:38:15 PM
> >>>>>> Subject: Re: [Engine-devel] watchdog
> >>>>>>=20
> >>>>>> On 04/10/2013 04:59 PM, Laszlo Hornyak wrote:
> >>>>>>> Hi,
> >>>>>>>=20
> >>>>>>> A new version of the watchd=C3=B6g feature is available
in gerr=
it:
> >>>>>>>=20
> >>>>>>> http://gerrit.ovirt.org/13057 - db
> >>>>>>> http://gerrit.ovirt.org/13058 - bll
> >>>>>>> http://gerrit.ovirt.org/13059 - frontend
> >>>>>>> http://gerrit.ovirt.org/13060 - rest
> >>>>>>>=20
> >>>>>>> http://www.ovirt.org/Features/Watchdog_engine_support
> >>>>>>>=20
> >>>>>>> Since the last update the patchset has gone through
major chang=
es
> >>>>>>> to
> >>>>>>> meet
> >>>>>>> the new architectureal and functional requirements.
> >>>>>>> Also because of the rewrite this is again a preview
version und=
er
> >>>>>>> testing
> >>>>>>> with some missing functionality, therefore I
re-introduced the
> >>>>>>> [wip]
> >>>>>>> flag
> >>>>>>> on it.
> >>>>>>>=20
> >>>>>>> Thx,
> >>>>>>> Laszlo
> >>>>>>> _______________________________________________
> >>>>>>> Engine-devel mailing list
> >>>>>>> Engine-devel(a)ovirt.org
> >>>>>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
> >>>>>>=20
> >>>>>> just a thought after looking at the feature page having
differen=
t HA
> >>>>>> dialog for server/desktop - I'd
consider removing the distinctio=
n
> >>>>>> between desktop and server in the GUI
wrt HA (i.e., just both ha=
ve
> >>>>>> same
> >>>>>> set of options)
> >>>>>>=20
> >>>>>> (not blocking for this patch)
> >>>>> _______________________________________________
> >>>>> Engine-devel mailing list
> >>>>> Engine-devel(a)ovirt.org
> >>>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
> >> _______________________________________________
> >> Engine-devel mailing list
> >> Engine-devel(a)ovirt.org
> >> http://lists.ovirt.org/mailman/listinfo/engine-devel
> > _______________________________________________
> > Engine-devel mailing list
> > Engine-devel(a)ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/engine-devel
> _______________________________________________
> Engine-devel mailing list
> Engine-devel(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/engine-devel
>=20
_______________________________________________
Engine-devel mailing list
Engine-devel(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/engine-devel
--=20
David Ja=C5=A1a, RHCE
SPICE QE based in Brno
GPG Key: 22C33E24=20
Fingerprint: 513A 060B D1B4 2A72 7F0D 0278 B125 CD00 22C3 3E24
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--=-/FNqRuFDJyJmcMp652r2--
4:04 p.m.
On 04/11/2013 03:54 PM, Laszlo Hornyak wrote:
Hi,
It is not really an optimization based only on console connection. In my opinion this
should be a decision factor when determining which VM to migrate from an overloaded host.
If it is a desktop and no console connection, then it is better candidate than a desktop
with console connection or a server with or without console connection. Basically this
logic would just want to minimize the pain caused by the short lag when a VM is live
migrated.
Can I assume that a Desktop is only used when a console is connected?
connected by spice? by vnc to host or to guest? by rdp? by remote
debugging to it from a remote machine, by someone developing on it with
ssh, etc...
i agree the general use case you are describing make sense, but i rather
we model scheduling decisions directly if/where possible
4:59 p.m.
----- Original Message -----
From: "Itamar Heim" <iheim(a)redhat.com>
To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
Cc: "engine-devel" ovirt.org>
Sent: Sunday, April 14, 2013 5:04:55 PM
Subject: Re: [Engine-devel] watchdog
On 04/11/2013 03:54 PM, Laszlo Hornyak wrote:
> Hi,
>
> It is not really an optimization based only on console connection. In my
> opinion this should be a decision factor when determining which VM to
> migrate from an overloaded host. If it is a desktop and no console
> connection, then it is better candidate than a desktop with console
> connection or a server with or without console connection. Basically this
> logic would just want to minimize the pain caused by the short lag when a
> VM is live migrated.
>
> Can I assume that a Desktop is only used when a console is connected?
connected by spice? by vnc to host or to guest? by rdp? by remote
debugging to it from a remote machine, by someone developing on it with
ssh, etc...
i agree the general use case you are describing make sense, but i rather
we model scheduling decisions directly if/where possible
Some parts of this thread are looking for perfection and on the way
creating additional tasks and reviewing cycles that are only remotely
related to the watchdog device;
Yes, we should try and reduce the existing differentiation between
desktop and a server.
No, this feature is not about closing that gap. Watchdog device is
about handling guest crash.
I strongly suggest that merging desktop and server dialogues will be
done as a different feature. The watchdog feature will take one step in
the 'right' direction- adding the (currently missing) HA tab into the
desktop dialog based on current design.
Doron
5:05 p.m.
On 04/14/2013 05:59 PM, Doron Fediuck wrote:
----- Original Message -----
> From: "Itamar Heim" <iheim(a)redhat.com>
> To: "Laszlo Hornyak" <lhornyak(a)redhat.com>
> Cc: "engine-devel" ovirt.org>
> Sent: Sunday, April 14, 2013 5:04:55 PM
> Subject: Re: [Engine-devel] watchdog
>
> On 04/11/2013 03:54 PM, Laszlo Hornyak wrote:
>> Hi,
>>
>> It is not really an optimization based only on console connection. In my
>> opinion this should be a decision factor when determining which VM to
>> migrate from an overloaded host. If it is a desktop and no console
>> connection, then it is better candidate than a desktop with console
>> connection or a server with or without console connection. Basically this
>> logic would just want to minimize the pain caused by the short lag when a
>> VM is live migrated.
>>
>> Can I assume that a Desktop is only used when a console is connected?
>
> connected by spice? by vnc to host or to guest? by rdp? by remote
> debugging to it from a remote machine, by someone developing on it with
> ssh, etc...
>
> i agree the general use case you are describing make sense, but i rather
> we model scheduling decisions directly if/where possible
Some parts of this thread are looking for perfection and on the way
creating additional tasks and reviewing cycles that are only remotely
related to the watchdog device;
Yes, we should try and reduce the existing differentiation between
desktop and a server.
No, this feature is not about closing that gap. Watchdog device is
about handling guest crash.
I strongly suggest that merging desktop and server dialogues will be
done as a different feature. The watchdog feature will take one step in
the 'right' direction- adding the (currently missing) HA tab into the
desktop dialog based on current design.
1. it is a different task.
2. i'm suggesting you can drop the code doing that distinction for the
watchdog in this patch.
Doron
4035
days inactive
4039
days old
16 comments
7 participants
participants (7)
-
David Jaša -
Doron Fediuck -
Itamar Heim -
Laszlo Hornyak -
Michal Skrivanek -
Tomas Jelinek -
Yair Zaslavsky