Flavor's disk is too small for requested image.

[Aaron Rosen]

I uploaded an image to glance and booted it. Once it landed on a compute node it tried to download the image to the compute node over and over and fails with this exception and never goes to error state.

2014-06-02 10:53:19.651 ERROR nova.compute.manager [req-83d5f514-5650-4fd2-8c01-1680428b7419 demo demo] [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] Instance failed to spawn
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] Traceback (most recent call last):
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] File "/opt/stack/nova/nova/compute/manager.py", line 2059, in _build_resources
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] yield resources
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] File "/opt/stack/nova/nova/compute/manager.py", line 1962, in _build_and_run_instan
ce
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] block_device_info=block_device_info)
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 2281, in spawn
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] admin_pass=admin_password)
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 2655, in _create_image
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] project_id=instance['project_id'])
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] File "/opt/stack/nova/nova/virt/libvirt/imagebackend.py", line 192, in cache
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] *args, **kwargs)
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] File "/opt/stack/nova/nova/virt/libvirt/imagebackend.py", line 384, in create_image
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] prepare_template(target=base, max_size=size, *args, **kwargs)
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] File "/opt/stack/nova/nova/openstack/common/lockutils.py", line 249, in inner
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] return f(*args, **kwargs)
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] File "/opt/stack/nova/nova/virt/libvirt/imagebackend.py", line 182, in fetch_func_s
ync
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] fetch_func(target=target, *args, **kwargs)
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] File "/opt/stack/nova/nova/virt/libvirt/utils.py", line 660, in fetch_image
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] max_size=max_size)
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] File "/opt/stack/nova/nova/virt/images.py", line 110, in fetch_to_raw
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] raise exception.FlavorDiskTooSmall()
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a] FlavorDiskTooSmall: Flavor's disk is too small for requested image.
2014-06-02 10:53:19.651 TRACE nova.compute.manager [instance: 4cb1ec29-94d0-4ad2-8f64-eaea80dcd12a]

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/97328

[Vish Ishaya (vishvananda)]

FYI if min_disk is set properly in the image, it will fail on download. Glance should be automatically setting min_disk from virtual_size when it can. Virtual size of qcow images can be determined via qemu-img info with just the first 512 bytes or so of the image.

[Vish Ishaya (vishvananda)]

s/fail on download/throw an error in nova api/

[OpenStack Infra (hudson-openstack)]

Change abandoned by Aaron Rosen (<email address hidden>) on branch: master
Review: https://review.openstack.org/97328