[Engine-devel] watchdog
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
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@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)
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@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow" <acathrow@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@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)
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak@redhat.com> To: "Itamar Heim" <iheim@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow" <acathrow@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@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:02:16 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak@redhat.com> To: "Itamar Heim" <iheim@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow" <acathrow@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@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:25:28 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:02:16 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak@redhat.com> To: "Itamar Heim" <iheim@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow" <acathrow@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@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:25:28 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:02:16 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak@redhat.com> To: "Itamar Heim" <iheim@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow" <acathrow@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@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
_______________________________________________ Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "Laszlo Hornyak" <lhornyak@redhat.com>, "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 12:26:35 PM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:25:28 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:02:16 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak@redhat.com> To: "Itamar Heim" <iheim@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow" <acathrow@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@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
_______________________________________________ Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "Laszlo Hornyak" <lhornyak@redhat.com>, "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 12:26:35 PM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:25:28 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:02:16 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak@redhat.com> To: "Itamar Heim" <iheim@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> > To: "Laszlo Hornyak" <lhornyak@redhat.com> > Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow" > <acathrow@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@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
_______________________________________________ Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
_______________________________________________ Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
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@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "Yair Zaslavsky" <yzaslavs@redhat.com>, "engine-devel" <engine-devel@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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "Laszlo Hornyak" <lhornyak@redhat.com>, "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 12:26:35 PM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:25:28 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:02:16 AM Subject: Re: [Engine-devel] watchdog
----- Original Message ----- > From: "Laszlo Hornyak" <lhornyak@redhat.com> > To: "Itamar Heim" <iheim@redhat.com> > Cc: "engine-devel" <engine-devel@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@redhat.com> >> To: "Laszlo Hornyak" <lhornyak@redhat.com> >> Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow" >> <acathrow@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@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@ovirt.org > http://lists.ovirt.org/mailman/listinfo/engine-devel >
_______________________________________________ Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
_______________________________________________ Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
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
----- Original Message -----
From: "Itamar Heim" <iheim@redhat.com> To: "Laszlo Hornyak" <lhornyak@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
On 04/14/2013 05:59 PM, Doron Fediuck wrote:
----- Original Message -----
From: "Itamar Heim" <iheim@redhat.com> To: "Laszlo Hornyak" <lhornyak@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
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak@redhat.com> To: "Yair Zaslavsky" <yzaslavs@redhat.com> Cc: "Tomas Jelinek" <tjelinek@redhat.com>, "engine-devel" <engine-devel@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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "Laszlo Hornyak" <lhornyak@redhat.com>, "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 12:26:35 PM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:25:28 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:02:16 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak@redhat.com> To: "Itamar Heim" <iheim@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> > To: "Laszlo Hornyak" <lhornyak@redhat.com> > Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow" > <acathrow@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@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
_______________________________________________ Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
On 11 Apr 2013, at 12:26, Yair Zaslavsky <yzaslavs@redhat.com> wrote:
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:25:28 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:02:16 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak@redhat.com> To: "Itamar Heim" <iheim@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow" <acathrow@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@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
_______________________________________________ Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
----- Original Message -----
From: "Michal Skrivanek" <mskrivan@redhat.com> To: "Yair Zaslavsky" <yzaslavs@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> wrote:
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> To: "Tomas Jelinek" <tjelinek@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:25:28 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Tomas Jelinek" <tjelinek@redhat.com> To: "Laszlo Hornyak" <lhornyak@redhat.com> Cc: "engine-devel" <engine-devel@ovirt.org> Sent: Thursday, April 11, 2013 10:02:16 AM Subject: Re: [Engine-devel] watchdog
----- Original Message -----
From: "Laszlo Hornyak" <lhornyak@redhat.com> To: "Itamar Heim" <iheim@redhat.com> Cc: "engine-devel" <engine-devel@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@redhat.com> > To: "Laszlo Hornyak" <lhornyak@redhat.com> > Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow" > <acathrow@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@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
_______________________________________________ Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
_______________________________________________ Engine-devel mailing list Engine-devel@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
--=-/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@redhat.com>
> > To: "Yair Zaslavsky" <yzaslavs@redhat.com>
> > Cc: "engine-devel" <engine-devel@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@redhat.com> wrote:
> >=20
> > >=20
> > >=20
> > > ----- Original Message -----
> > >> From: "Tomas Jelinek" <tjelinek@redhat.com>
> > >> To: "Laszlo Hornyak" <lhornyak@redhat.com>
> > >> Cc: "engine-devel" <engine-devel@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@redhat.com>
> > >>> To: "Tomas Jelinek" <tjelinek@redhat.com>
> > >>> Cc: "engine-devel" <engine-devel@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@redhat.com>
> > >>>> To: "Laszlo Hornyak" <lhornyak@redhat.com>
> > >>>> Cc: "engine-devel" <engine-devel@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@redhat.com>
> > >>>>> To: "Itamar Heim" <iheim@redhat.com>
> > >>>>> Cc: "engine-devel" <engine-devel@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@redhat.com>
> > >>>>>> To: "Laszlo Hornyak" <lhornyak@redhat.com>
> > >>>>>> Cc: "engine-devel" <engine-devel@ovirt.org>, "Andrew Cathrow"
> > >>>>>> <acathrow@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@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@ovirt.org
> > >>>>> http://lists.ovirt.org/mailman/listinfo/engine-devel
> > >> _______________________________________________
> > >> Engine-devel mailing list
> > >> Engine-devel@ovirt.org
> > >> http://lists.ovirt.org/mailman/listinfo/engine-devel
> > > _______________________________________________
> > > Engine-devel mailing list
> > > Engine-devel@ovirt.org
> > > http://lists.ovirt.org/mailman/listinfo/engine-devel
> > _______________________________________________
> > Engine-devel mailing list
> > Engine-devel@ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/engine-devel
> >=20
> _______________________________________________
> Engine-devel mailing list
> Engine-devel@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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participants (7)
-
David Jaša -
Doron Fediuck -
Itamar Heim -
Laszlo Hornyak -
Michal Skrivanek -
Tomas Jelinek -
Yair Zaslavsky