Josh Thompson created VCL-1131:
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Summary: kvm image copy/conversions failures not detected correctly
Key: VCL-1131
URL: https://issues.apache.org/jira/browse/VCL-1131
Project: VCL
Issue Type: Bug
Components: vcld (backend)
Reporter: Josh Thompson
Fix For: 2.6
When libvirt is used as the provisioning engine for a VM, and the qcow2 disk
image file does not exist in the datastore for the reserved image, qemu-img is
used to copy it from the repository. The command to copy it uses && to run both
the qemu-img convert command and a follow up qemu-img info command. The return
code of the info command is all that gets returned to the vcld process, masking
a possible failed error code from qemu-img convert. If qemu-img convert fails
part of the way through, qemu-img info still succeeds, and the VM is eventually
provisioned, but with a broken backing file for its disk image.
The qemu-img convert and qemu-img info commands need to be separated so that
vcld can read the return code of each of them. The commands are in
KVM.pm->copy_virtual_disk.
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