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From Chiradeep Vittal <Chiradeep.Vit...@citrix.com>
Subject Re: making VM startup more fine-grained
Date Mon, 04 Jun 2012 06:05:28 GMT
This could work as well.
If volumes are prepared as part of CreateVm, is there a reason why nics
cannot be as well? Is it because the volumes are prepared before the
destination host is chosen?

On 6/1/12 5:38 AM, "Murali Reddy" <Murali.Reddy@citrix.com> wrote:

>On 01/06/12 10:46 AM, "Chiradeep Vittal" <Chiradeep.Vittal@citrix.com>
>wrote:
>
>>A third way is to split the agent api into 2 commands: CreateVm and
>>StartVm.
>
>CloudStack already has two separate agent api commands for
>creating(CreateCommand) and starting (StartCommand) VM operations. Not
>sure if any optimization influenced this but, unfortunately VM creation
>operations are spread across both CreateCommand and StartCommand
>implementations. So volumes for the VM are prepared as part of the
>CreateCommand and actual VM creation on Hypervisor, nic's for the VM, and
>ISO etc are created as part of the StartCommand. Also there is no state
>transition for VM from Created/Creating to Starting. If we have it, a
>pluggable service can register for state change and act on it.
>


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