Not sure if this is still reproducible. Marking this as won't fix as its
a four year old and lot of water has been flown under the bridge for
both nova and glance.
** Changed in: glance
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1319903
Title:
preallocated snapshot images should not be determined by format
Status in Glance:
Won't Fix
Bug description:
In nova, we can create a raw preallocated disk and a qcow2
preallocated disk - both would be preallocated although the format
would change.
nova.conf configured with preallocation+qcow2:
[root@orange-vdsf _base(keystone_admin)]# qemu-img info
/var/lib/nova/instances/e143d1e7-d665-4129-80fd-729c2df63262/disk
image: /var/lib/nova/instances/e143d1e7-d665-4129-80fd-729c2df63262/disk
file format: qcow2
virtual size: 10G (10737418240 bytes)
disk size: 10G
cluster_size: 65536
backing file:
/var/lib/nova/instances/_base/8dc2949154674d316d255dc55d411867614e6eb4
Format specific information:
compat: 1.1
lazy refcounts: false
nova.conf configured with preallocation and raw:
[root@orange-vdsf _base(keystone_admin)]# qemu-img info
/var/lib/nova/instances/1ed7becd-4635-4ba5-a9dd-2a6c5f6f58d3/disk
image: /var/lib/nova/instances/1ed7becd-4635-4ba5-a9dd-2a6c5f6f58d3/disk
file format: raw
virtual size: 10G (10737418240 bytes)
disk size: 10G
this is a snapshot image created from a qcow2+preallocated instance
image: /var/lib/glance/images/90983f5a-08a8-48b0-a209-926e6ccfcd4f
file format: qcow2
virtual size: 10G (10737418240 bytes)
disk size: 18M
cluster_size: 65536
Format specific information:
compat: 1.1
lazy refcounts: false
this is a snapshot image created from a raw+preallocated instance
[root@orange-vdsf _base(keystone_admin)]# qemu-img info
/var/lib/glance/images/9fbfb9b0-f008-48b7-8684-c91eeb69406c
image: /var/lib/glance/images/9fbfb9b0-f008-48b7-8684-c91eeb69406c
file format: raw
virtual size: 10G (10737418240 bytes)
disk size: 10G
oot@orange-vdsf _base(keystone_admin)]# glance image-show
90983f5a-08a8-48b0-a209-926e6ccfcd4f
+---------------------------------------+--------------------------------------+
| Property | Value
|
+---------------------------------------+--------------------------------------+
| Property 'base_image_ref' |
566a54a6-ff91-4546-bbf5-ad3f240e29f0 |
| Property 'image_location' | snapshot
|
| Property 'image_state' | available
|
| Property 'image_type' | snapshot
|
| Property 'instance_type_ephemeral_gb' | 0
|
| Property 'instance_type_flavorid' |
961b00cd-d199-416b-886a-e9f5ecafebd0 |
| Property 'instance_type_id' | 6
|
| Property 'instance_type_memory_mb' | 512
|
| Property 'instance_type_name' | Dafna
|
| Property 'instance_type_root_gb' | 10
|
| Property 'instance_type_rxtx_factor' | 1.0
|
| Property 'instance_type_swap' | 0
|
| Property 'instance_type_vcpus' | 1
|
| Property 'instance_uuid' |
e143d1e7-d665-4129-80fd-729c2df63262 |
| Property 'network_allocated' | True
|
| Property 'owner_id' | 4ad766166539403189f2caca1ba306aa
|
| Property 'user_id' | c9062d562d9f41e4a1fdce36a4f176f6
|
| checksum | 4b92737f3e2b8b0fa239b10f895644ca
|
| container_format | bare
|
| created_at | 2014-05-15T15:02:44
|
| deleted | False
|
| disk_format | qcow2
|
| id |
90983f5a-08a8-48b0-a209-926e6ccfcd4f |
| is_public | False
|
| min_disk | 10
|
| min_ram | 0
|
| name | qcow_preallocated
|
| owner | 4ad766166539403189f2caca1ba306aa
|
| protected | False
|
| size | 19333120
|
| status | active
|
| updated_at | 2014-05-15T15:08:50
|
+---------------------------------------+--------------------------------------+
[root@orange-vdsf _base(keystone_admin)]# glance image-show
9fbfb9b0-f008-48b7-8684-c91eeb69406c
+---------------------------------------+--------------------------------------+
| Property | Value
|
+---------------------------------------+--------------------------------------+
| Property 'base_image_ref' |
566a54a6-ff91-4546-bbf5-ad3f240e29f0 |
| Property 'image_location' | snapshot
|
| Property 'image_state' | available
|
| Property 'image_type' | snapshot
|
| Property 'instance_type_ephemeral_gb' | 0
|
| Property 'instance_type_flavorid' |
961b00cd-d199-416b-886a-e9f5ecafebd0 |
| Property 'instance_type_id' | 6
|
| Property 'instance_type_memory_mb' | 512
|
| Property 'instance_type_name' | Dafna
|
| Property 'instance_type_root_gb' | 10
|
| Property 'instance_type_rxtx_factor' | 1.0
|
| Property 'instance_type_swap' | 0
|
| Property 'instance_type_vcpus' | 1
|
| Property 'instance_uuid' |
1ed7becd-4635-4ba5-a9dd-2a6c5f6f58d3 |
| Property 'network_allocated' | True
|
| Property 'owner_id' | 4ad766166539403189f2caca1ba306aa
|
| Property 'user_id' | c9062d562d9f41e4a1fdce36a4f176f6
|
| checksum | 2915b40e7c707d9c996dce4b824af30d
|
| container_format | bare
|
| created_at | 2014-05-15T15:26:57
|
| deleted | False
|
| disk_format | raw
|
| id |
9fbfb9b0-f008-48b7-8684-c91eeb69406c |
| is_public | False
|
| min_disk | 10
|
| min_ram | 0
|
| name | snapshot_raw
|
| owner | 4ad766166539403189f2caca1ba306aa
|
| protected | False
|
| size | 10737418240
|
| status | active
|
| updated_at | 2014-05-15T15:34:14
|
if qcow2 can support preallocation we should be creating the snapshot
based on the nova preallocation configuration and not the instance
disk format.
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