yahoo-eng-team team mailing list archive
-
yahoo-eng-team team
-
Mailing list archive
-
Message #84072
[Bug 1898168] [NEW] Cannot create more than one instance when using RAW image with rbd imagebackend
Public bug reported:
Description
===========
When using rbd as the nova and glance store backend with a RAW image, creating an instance will directly clone the image from glance. It is then impossible to create a second instance from this RAW image.
I don't know if it's a bug or a configuration error on my part.
Note with the image property 'img_linked_clone' I could have worked around this problem
image property named 'img_linked_clone' => https://bugs.launchpad.net/nova/+bug/1697391
Steps to reproduce
==================
A chronological list of steps which will bring off the
issue you noticed:
1. Use rbd as the nova and glance backend.
2. Upload a RAW image.
3. Use this image to create a first instance
4. Use this image again to create a second instance
Expected result
===============
The second instance should be active like the first
Actual result
=============
Creation of second instance fails.
The first instance has directly cloned the image.
* Glance rbd image information :
rbd info glance/86ae5d55-afc7-48d4-8298-f5d974662922
size 10 GiB in 1280 objects
order 23 (8 MiB objects)
snapshot_count: 1
id: e504021b348f19
block_name_prefix: rbd_data.e504021b348f19
format: 2
features: layering, exclusive-lock, object-map, fast-diff, deep-flatten, operations
op_features: clone-parent, snap-trash
flags:
create_timestamp: Fri Oct 2 08:04:13 2020
access_timestamp: Fri Oct 2 08:04:13 2020
modify_timestamp: Fri Oct 2 08:07:16 2020
* Nova rbd image information :
rbd info vms/cabe736a-ce62-437e-b56b-e073ba001c35_disk
size 20 GiB in 2560 objects
order 23 (8 MiB objects)
snapshot_count: 0
id: e51e01344f07ed
block_name_prefix: rbd_data.e51e01344f07ed
format: 2
features: layering, exclusive-lock, object-map, fast-diff, deep-flatten, operations
op_features: clone-child
flags:
create_timestamp: Fri Oct 2 08:08:26 2020
access_timestamp: Fri Oct 2 09:42:02 2020
modify_timestamp: Fri Oct 2 09:49:42 2020
parent: glance-images/86ae5d55-afc7-48d4-8298-f5d974662922@cdb63293-4620-4e50-b0e8-eb5386c4208d
overlap: 10 GiB
Environment
===========
1. Exact version of OpenStack you are running. See the following
list for all releases: http://docs.openstack.org/releases/
"Train" with a kolla-ansible deployment
2. Which hypervisor did you use?
libvirt + kvm + rbd
2. Which storage type did you use?
ceph
3. Which networking type did you use?
N/A
Kolla-ansible with rbd（Train)
Logs & Configs
==============
[libvirt]
connection_uri = qemu+tcp://192.168.1.14/system
live_migration_inbound_addr = 192.168.1.14
rbd_secret_uuid = 1706e3a9-c53e-4b2b-8474-b1d601db4770
virt_type = kvm
images_rbd_pool = vms
images_type = rbd
images_rbd_ceph_conf = /etc/ceph/ceph.conf
rbd_user = nova
disk_cachemodes = network=writeback
hw_disk_discard = unmap
live_migration_bandwidth = 1000
inject_key = false
inject_password = False
inject_partition = -2
** Affects: nova
Importance: Undecided
Status: New
** Tags: ceph
** Attachment added: "nova-compute.log"
https://bugs.launchpad.net/bugs/1898168/+attachment/5416481/+files/nova-compute.log
** Tags added: ceph
--
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1898168
Title:
Cannot create more than one instance when using RAW image with rbd
imagebackend
Status in OpenStack Compute (nova):
New
Bug description:
Description
===========
When using rbd as the nova and glance store backend with a RAW image, creating an instance will directly clone the image from glance. It is then impossible to create a second instance from this RAW image.
I don't know if it's a bug or a configuration error on my part.
Note with the image property 'img_linked_clone' I could have worked around this problem
image property named 'img_linked_clone' => https://bugs.launchpad.net/nova/+bug/1697391
Steps to reproduce
==================
A chronological list of steps which will bring off the
issue you noticed:
1. Use rbd as the nova and glance backend.
2. Upload a RAW image.
3. Use this image to create a first instance
4. Use this image again to create a second instance
Expected result
===============
The second instance should be active like the first
Actual result
=============
Creation of second instance fails.
The first instance has directly cloned the image.
* Glance rbd image information :
rbd info glance/86ae5d55-afc7-48d4-8298-f5d974662922
size 10 GiB in 1280 objects
order 23 (8 MiB objects)
snapshot_count: 1
id: e504021b348f19
block_name_prefix: rbd_data.e504021b348f19
format: 2
features: layering, exclusive-lock, object-map, fast-diff, deep-flatten, operations
op_features: clone-parent, snap-trash
flags:
create_timestamp: Fri Oct 2 08:04:13 2020
access_timestamp: Fri Oct 2 08:04:13 2020
modify_timestamp: Fri Oct 2 08:07:16 2020
* Nova rbd image information :
rbd info vms/cabe736a-ce62-437e-b56b-e073ba001c35_disk
size 20 GiB in 2560 objects
order 23 (8 MiB objects)
snapshot_count: 0
id: e51e01344f07ed
block_name_prefix: rbd_data.e51e01344f07ed
format: 2
features: layering, exclusive-lock, object-map, fast-diff, deep-flatten, operations
op_features: clone-child
flags:
create_timestamp: Fri Oct 2 08:08:26 2020
access_timestamp: Fri Oct 2 09:42:02 2020
modify_timestamp: Fri Oct 2 09:49:42 2020
parent: glance-images/86ae5d55-afc7-48d4-8298-f5d974662922@cdb63293-4620-4e50-b0e8-eb5386c4208d
overlap: 10 GiB
Environment
===========
1. Exact version of OpenStack you are running. See the following
list for all releases: http://docs.openstack.org/releases/
"Train" with a kolla-ansible deployment
2. Which hypervisor did you use?
libvirt + kvm + rbd
2. Which storage type did you use?
ceph
3. Which networking type did you use?
N/A
Kolla-ansible with rbd（Train)
Logs & Configs
==============
[libvirt]
connection_uri = qemu+tcp://192.168.1.14/system
live_migration_inbound_addr = 192.168.1.14
rbd_secret_uuid = 1706e3a9-c53e-4b2b-8474-b1d601db4770
virt_type = kvm
images_rbd_pool = vms
images_type = rbd
images_rbd_ceph_conf = /etc/ceph/ceph.conf
rbd_user = nova
disk_cachemodes = network=writeback
hw_disk_discard = unmap
live_migration_bandwidth = 1000
inject_key = false
inject_password = False
inject_partition = -2
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1898168/+subscriptions
Follow ups
