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

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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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> Users at lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org

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