[one-users] Bug with delete action and persistent storage

[Nicolas AGIUS]

Hi,

Thanks for the answer, I'll look at this clue.
But I think there is another problem, as I'm running Xen.

In fact, Opennebula try to move a file that does'nt exist, because the image file is not transferred back from the dom0.

Regards,

--- En date de : Ven 23.3.12, Gmail <gubasanyi at gmail.com> a écrit :

De: Gmail <gubasanyi at gmail.com>
Objet: Re: [one-users] Bug with delete action and persistent storage
À: users at lists.opennebula.org
Date: Vendredi 23 mars 2012, 19h55


  

    
  
    Hi this is a Permission issue. Usually the problem is that KVM run
    as root and take over permission on images. You can prevent this by
    the proper settings of KVM.

    

    qemu.conf

    

    # The user ID for QEMU processes run by the system instance.

    user = "oneuser"

    

    # The group ID for QEMU processes run by the system instance.

    group = "onegroup"

    

    # Whether libvirt should dynamically change file ownership

    # to match the configured user/group above. Defaults to 1.

    # Set to 0 to disable file ownership changes.

    dynamic_ownership = 0

    

    And if you do that you need to add oneuser to the kvm group to allow
    acces to /dev/kvm... I hope it solves ur problem.

    

    2012-03-23 18:26 keltezéssel, Nicolas AGIUS írta:
    
      
        
          
            Hi,

              I found a small bug in OpenNebula v3.2.1.

              

              When I try to delete a VM with a persistent image, the
              image switch in the ERROR state and the following trace
              appear in the log :

              

              ------

              [ImM][I]: Moving disk /var/lib/one/64/disk.0 to repository
              image 15

              [VMM][D]: Message received: LOG I 64 Driver command for 64
              cancelled

              [ImG][D]: Message received: LOG I 15 Command execution
              fail: /var/lib/one/remotes/image/fs/mv
              /var/lib/one/64/disk.0
              /var/lib/one/images/5f4cc7519564396f02e99a59e5bd45c0 15 15

              [ImM][I]: Command execution fail:
              /var/lib/one/remotes/image/fs/mv /var/lib/one/64/disk.0
              /var/lib/one/images/5f4cc7519564396f02e99a59e5bd45c0 15 15

              [ImG][D]: Message received: LOG I 15 mv: Moving local
              image /var/lib/one/64/disk.0 to the image repository

              [ImM][I]: mv: Moving local image /var/lib/one/64/disk.0 to
              the image repository

              [ImG][D]: Message received: LOG E 15 mv: Command "mv -f
              /var/lib/one/64/disk.0
              /var/lib/one/images/5f4cc7519564396f02e99a59e5bd45c0"
              failed.

              [ImM][E]: mv: Command "mv -f /var/lib/one/64/disk.0
              /var/lib/one/images/5f4cc7519564396f02e99a59e5bd45c0"
              failed.

              [ImG][D]: Message received: LOG E 15 mv: mv: cannot stat
              `/var/lib/one/64/disk.0': No such file or directory

              [ImM][E]: mv: mv: cannot stat `/var/lib/one/64/disk.0': No
              such file or directory

              [ImG][D]: Message received: LOG E 15 Could not move
              /var/lib/one/64/disk.0 to
              /var/lib/one/images/5f4cc7519564396f02e99a59e5bd45c0

              [ImM][E]: Could not move /var/lib/one/64/disk.0 to
              /var/lib/one/images/5f4cc7519564396f02e99a59e5bd45c0

              [ImG][D]: Message received: LOG I 15 ExitCode: 1

              [ImM][I]: ExitCode: 1

              [ImG][D]: Message received: MV FAILURE 15 Could not move
              /var/lib/one/64/disk.0 to
              /var/lib/one/images/5f4cc7519564396f02e99a59e5bd45c0

              [ImM][E]: Error saving image to the repository: Could not
              move /var/lib/one/64/disk.0 to
              /var/lib/one/images/5f4cc7519564396f02e99a59e5bd45c0

              --------

              

              It seems that the delete action is doing the following
              steps :

               - Move image to the repo

               - Delete image on the host

               - Destroy the vm

              

              But the image is not transferred and cause the error. I
              thinks steps should be :

               - Destroy the vm

               - Copy back the image from the host

               - Move image to the repo

               - Delete image on the host

              

              I've tried to fix it,  but I got lost somewhere between
              C++ and Ruby...

              

              Subsidiary question, why is the core written in C++ and
              not in Ruby ?

              

              Thanks,

              Nicolas AGIUS

              

            
          
        
      
      

      
      

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