[vbox-dev] registervm error webservice but works using cli

[alexandre.devely at orange.com]

Hi Klaus,

Thank you for your response.

Using the Webservice and the SOAP API, you can not call openMachine twice (using the same session) :
I ve wrote this piece of code, and the result is an exception:

           second call IVirtualBox_openMachine error VirtualBox error: Cannot attach medium '/mnt/nfs/volcbdata/xxxx/testtom/NewVirtualDisk1.vdi' {0386b372-3416-40c1-a6ca-b199d4f32831} from snapshot '4916d0bd-4579-450b-8b55-dc79595d5c73': medium is already in use by this snapshot! (0x80BB000C)

Code : 
		cbhypervisor myhypervisor = new cbhypervisor("http://192.168.7.53:18083/", 2468);
            if (!myhypervisor.sessionlogon("xxx", "xxx"))
            {
                job_tracker(":myhypervisor.sessionlogon error " + myhypervisor.strLastErrorMessage);
                return ;
            }

            string strIMachine, strReturn;
            try
            {   // it works
                strIMachine = myhypervisor.vboxhypervisor.IVirtualBox_openMachine(myhypervisor.strSessionHypervisor,
                    "/mnt/nfs/volcbdata/xxxx/testtom/testtom.vbox");
                strReturn = myhypervisor.vboxhypervisor.IMachine_getName(strIMachine);
            }
            catch (Exception a) 
            {
                job_tracker("first call IVirtualBox_openMachine error " + a.Message);
            }


            try
            {   // failed
                strIMachine = myhypervisor.vboxhypervisor.IVirtualBox_openMachine(myhypervisor.strSessionHypervisor,
                    "/mnt/nfs/volcbdata/xxxx/testtom/testtom.vbox");
                strReturn = myhypervisor.vboxhypervisor.IMachine_getName(strIMachine);
            }
            catch (Exception b) 
            {
                job_tracker("second call IVirtualBox_openMachine error " + b.Message);
            }
            


Best Regards

Alex


-----Message d'origine-----
De : Klaus Espenlaub [mailto:klaus.espenlaub at oracle.com] 
Envoyé : lundi 9 septembre 2013 20:41
À : vbox-dev at virtualbox.org
Objet : Re: [vbox-dev] registervm error webservice but works using cli

Hi Alex,

On 28.08.2013 20:22, alexandre.devely at orange.com wrote:
> Hello Devs,
>
> On Linux Ubuntu(precise_amd64), i ve got an error using the Webservice 
> to register a VM, this error does not occur using the command line.
>
> I want to register a VM using the vboxwebsrv (runas vbox user). I use 
> IVirtualBox_openMachine and IVirtualBox_registerMachine.
>
> IVirtualBox_openMachine fails using webservice :
>
> exception VirtualBox error: Cannot attach medium 
> '/mnt/nfs/volcbdata/demoAlexWindowsXp/demoAlexWWindowsXp-disk1.vdi'
> {b3cf56ef-48ba-4dc8-9efc-77a64c43e534} from snapshot
> '775ed2f4-fd3e-487d-8963-f8ae4515eccd': medium is already in use by 
> this snapshot! (0x80BB000C)

Is the webservice running as the same user as below?

> But if i use the command line "vboxmanage registervm", it works using 
> the same file
>
> vbox at pbox:~$ vboxmanage registervm
> /mnt/nfs/volcbdata/demoAlexWindowsXp/demoAlexWindowsXp.vbox
>
> vbox at pbox:~$ vboxmanage list vms
>
> "demoAlexWindowsXp" {2bac5ce4-4e95-4573-b42f-29c3536c58a1}
>
> vbox at pbox:~$
>
> I use the last release VirtualBox 4.2.16
>
> Why does the command line work ?

Really no idea - the webservice is just converting its API calls to the normal local API (without adding/removing operations or re-grouping them), so if you do the same thing (in the same account) starting with the same files then the result has to be the same.

Scratching my head...

Klaus

>
> Thank you in advance.
>
> Best Regards
>
> Alex

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