[pve-devel] qemu-server : allow only hotpluggable|dynamics options to be change online

[Alexandre DERUMIER]

>>Did you see my patches posted earlier this year? I already did the same.
>>
>>I can post also an up2date version.

yes, sure, resend your patch. I would like to compare :)

(I think I'm doing it early than, before going into the main loop).

>> There are some corner cases. Like mem with virtio.
Oh, don't known about it. What's this problem exactly ?


----- Mail original ----- 

De: "Stefan Priebe - Profihost AG" <s.priebe at profihost.ag> 
À: "Alexandre Derumier" <aderumier at odiso.com> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Jeudi 4 Septembre 2014 16:06:45 
Objet: Re: [pve-devel] qemu-server : allow only hotpluggable|dynamics options to be change online 


Did you see my patches posted earlier this year? I already did the same. 


I can post also an up2date version. There are some corner cases. Like mem with virtio. 

Stefan 


Excuse my typo s ent from my mobile phone. 

Am 04.09.2014 um 15:50 schrieb Alexandre Derumier < aderumier at odiso.com >: 




Hi, 

This is a first try for filtering options change of running vms. 

Only hotplugable values (disk,nic,cpu), dynamics values (disk throttle, cdrom media change,balloon,..), 
and some options (name,onboot,...) 
are allowed. 

The main idea is to always have a config which is the same than running qemu guest. 

This help to avoid hanging live migration, if config have changed but qemu process not yet restarted. 
This also avoid confusion for users (need to stop/start after config change) 
and also helping with hotplugging to be sure that we have a config equal to current qemu disk/controllers. 

I'm also thinking to improve pve-manager to grey-out non modifiable values when vm is running. 

review and comments are welcome ! 



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