disk.config file is not handled correctly at destination server when doing a live migration

[Yaguang Tang]

2013-10-17 08:05:50.257 DEBUG nova.openstack.common.lockutils [^[[01;36mreq-b3269d34-cfb7-4950-9a75-38149dd6fbe8 ^[[00;36madmin demo] ^[[01;35mGot semaphore / lock "copy_qcow2_image"^[[00m ^[[00;33mfrom (pid=54106) inner /opt/stack/nova/nova/openstack/common/lockutils.py:245^[[00m
2013-10-17 08:05:50.257 DEBUG nova.openstack.common.processutils [^[[01;36mreq-b3269d34-cfb7-4950-9a75-38149dd6fbe8 ^[[00;36madmin demo] ^[[01;35mRunning cmd (subprocess): env LC_ALL=C LANG=C qemu-img info /opt/stack/data/nova/instances/_base/ephemeral_1_default^[[00m ^[[00;33mfrom (pid=54106) execute /opt/stack/nova/nova/openstack/common/processutils.py:147^[[00m
2013-10-17 08:05:50.290 DEBUG nova.openstack.common.processutils [^[[01;36mreq-b3269d34-cfb7-4950-9a75-38149dd6fbe8 ^[[00;36madmin demo] ^[[01;35mRunning cmd (subprocess): qemu-img create -f qcow2 -o backing_file=/opt/stack/data/nova/instances/_base/ephemeral_1_default /opt/stack/data/nova/instances/fe0a258a-9d76-45fe-a5c3-b7ea0aff463c/disk.local^[[00m ^[[00;33mfrom (pid=54106) execute /opt/stack/nova/nova/openstack/common/processutils.py:147^[[00m
2013-10-17 08:05:50.385 DEBUG nova.virt.disk.api [^[[01;36mreq-b3269d34-cfb7-4950-9a75-38149dd6fbe8 ^[[00;36madmin demo] ^[[01;35mChecking if we can resize image /opt/stack/data/nova/instances/fe0a258a-9d76-45fe-a5c3-b7ea0aff463c/disk.local. size=1073741824^[[00m ^[[00;33mfrom (pid=54106) can_resize_image /opt/stack/nova/nova/virt/disk/api.py:157^[[00m
2013-10-17 08:05:50.386 DEBUG nova.openstack.common.processutils [^[[01;36mreq-b3269d34-cfb7-4950-9a75-38149dd6fbe8 ^[[00;36madmin demo] ^[[01;35mRunning cmd (subprocess): env LC_ALL=C LANG=C qemu-img info /opt/stack/data/nova/instances/fe0a258a-9d76-45fe-a5c3-b7ea0aff463c/disk.local^[[00m ^[[00;33mfrom (pid=54106) execute /opt/stack/nova/nova/openstack/common/processutils.py:147^[[00m
2013-10-17 08:05:50.421 DEBUG nova.virt.disk.api [^[[01;36mreq-b3269d34-cfb7-4950-9a75-38149dd6fbe8 ^[[00;36madmin demo] ^[[01;35mCannot resize image /opt/stack/data/nova/instances/fe0a258a-9d76-45fe-a5c3-b7ea0aff463c/disk.local to a smaller size.^[[00m ^[[00;33mfrom (pid=54106) can_resize_image /opt/stack/nova/nova/virt/disk/api.py:163^[[00m
2013-10-17 08:05:50.422 DEBUG nova.openstack.common.lockutils [^[[01;36mreq-b3269d34-cfb7-4950-9a75-38149dd6fbe8 ^[[00;36madmin demo] ^[[01;35mReleased file lock "/opt/stack/data/nova/instances/_base/ephemeral_1_default" at /opt/stack/data/nova/instances/locks/nova-_opt_stack_data_nova_instances__base_ephemeral_1_default^[[00m ^[[00;33mfrom (pid=54106) lock /opt/stack/nova/nova/openstack/common/lockutils.py:208^[[00m
2013-10-17 08:05:50.423 DEBUG nova.openstack.common.processutils [^[[01;36mreq-b3269d34-cfb7-4950-9a75-38149dd6fbe8 ^[[00;36madmin demo] ^[[01;35mRunning cmd (subprocess): qemu-img create -f raw /opt/stack/data/nova/instances/fe0a258a-9d76-45fe-a5c3-b7ea0aff463c/disk.config 419840^[[00m ^[[00;33mfrom (pid=54106) execute /opt/stack/nova/nova/openstack/common/processutils.py:147^[[00m

at destination disk.config file is created by qemu-img as a raw image file.

[Yaguang Tang (heut2008)]

disk.config should be created as a iso9660 or vfat format and contains metadata info.

[David Medberry (med)]

Is this a config drive issue? Another bug #1246201 indicates that treating a config-drive as a "disk" vs as a CD-ROM allows migration to succeed (as without that, the config-drive doesn't get migrated.) This seems to be the opposite issue (or perhaps a related work around.)