1835292 – Error creating snapshot from instance when vm is paused and instance is booted from volume

Bug 1835292 - Error creating snapshot from instance when vm is paused and instance is booted from volume

Summary: Error creating snapshot from instance when vm is paused and instance is boote...

Keywords:
Status:	CLOSED ERRATA
Alias:	None
Product:	Red Hat OpenStack
Classification:	Red Hat
Component:	openstack-nova
Sub Component:
Version:	13.0 (Queens)
Hardware:	x86_64
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	beta
Target Release:	17.0
Assignee:	Lee Yarwood
QA Contact:	OSP DFG:Compute
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:	1838668 1838669 1838671
TreeView+	depends on / blocked

Reported:	2020-05-13 14:43 UTC by Ivan Richart
Modified:	2023-12-15 17:53 UTC (History)
CC List:	10 users (show)
Fixed In Version:	openstack-nova-23.0.3-0.20210908140341.e39bbdc.el9ost
Doc Type:	If docs needed, set a value
Doc Text:
Clone Of:
Clones:	1838668 (view as bug list)
Environment:
Last Closed:	2022-09-21 12:10:46 UTC
Target Upstream Version:
Embargoed:

Attachments	(Terms of Use)

Links
System	ID	Priority	Status	Summary	Last Updated
Launchpad	1878583	None	None	None	2020-05-14 10:20:47 UTC
OpenStack gerrit	728011	None	MERGED	compute: Allow snapshots to be created from PAUSED volume backed instances	2020-12-03 13:39:43 UTC
OpenStack gerrit	728012	None	MERGED	compute: Remove snapshot quiesce tests for STOPPED and SUSPENDED instances	2020-12-03 13:39:42 UTC
OpenStack gerrit	728013	None	ABANDONED	compute: Add a PAUSED volume backed instance snapshot test	2020-12-03 13:40:09 UTC
Red Hat Issue Tracker	OSP-10072	None	None	None	2022-04-13 19:56:41 UTC
Red Hat Product Errata	RHEA-2022:6543	None	None	None	2022-09-21 12:11:51 UTC

Description Ivan Richart 2020-05-13 14:43:52 UTC

Description of problem:

We want to create nova snapshot from instance. This instance has only one disk booting from cinder volume. 
If we try to create snapshot from running instance, there is not problem. Problem appears when we want snapshot from instance in paused mode

Version-Release number of selected component (if applicable):

Red Hat Enterprise Linux Server release 7.8 (Maipo)

Red Hat OpenStack Platform release 13.0.11 (Queens)

How reproducible:

Create instance from volume (vda disk as root disk)
Pause VM
Create snapshot from instance paused


Steps to Reproduce:
1.
2.
3.
openstack server create --flavor n1.tiny --nic net-id=net1 --volume Centos vm1


(overcloud) [stack@undercloud-0 ~]$ openstack server show vm1
+-------------------------------------+----------------------------------------------------------+
| Field                               | Value                                                    |
+-------------------------------------+----------------------------------------------------------+
| OS-DCF:diskConfig                   | MANUAL                                                   |
| OS-EXT-AZ:availability_zone         | nova                                                     |
| OS-EXT-SRV-ATTR:host                | compute-0.redhat.local                                   |
| OS-EXT-SRV-ATTR:hypervisor_hostname | compute-0.redhat.local                                   |
| OS-EXT-SRV-ATTR:instance_name       | instance-0000000e                                        |
| OS-EXT-STS:power_state              | Running                                                  |
| OS-EXT-STS:task_state               | None                                                     |
| OS-EXT-STS:vm_state                 | active                                                   |
| OS-SRV-USG:launched_at              | 2020-05-13T13:26:57.000000                               |
| OS-SRV-USG:terminated_at            | None                                                     |
| accessIPv4                          |                                                          |
| accessIPv6                          |                                                          |
| addresses                           | net1=20.0.1.9                                            |
| config_drive                        |                                                          |
| created                             | 2020-05-13T13:26:09Z                                     |
| flavor                              | n1.tiny (52afe22e-fcbb-4844-ab06-27d7eef9cc18)           |
| hostId                              | 27413a59a2eb57e6f2d85bfb910421917c32252a1f63b130a477743b |
| id                                  | 37fbe1ff-d260-4f50-adcc-41f82b00b103                     |
| image                               |                                                          |
| key_name                            | None                                                     |
| name                                | vm1                                                      |
| progress                            | 0                                                        |
| project_id                          | 878743a4cce84671ac45777dca8ca163                         |
| properties                          |                                                          |
| security_groups                     | name='default'                                           |
| status                              | ACTIVE                                                   |
| updated                             | 2020-05-13T13:37:11Z                                     |
| user_id                             | 800e469f62fc4bd9ae23f33ed3f7f61b                         |
| volumes_attached                    | id='93ee3953-e9f9-4e9e-aa66-2c915517061c'                |
+-------------------------------------+----------------------------------------------------------+

###### VM RUNNING ######################


(overcloud) [stack@undercloud-0 ~]$ nova image-create --poll vm1 vm1_snapshot_running

Server snapshotting... 100% complete
Finished
(overcloud) [stack@undercloud-0 ~]$ openstack volume snapshot list
+--------------------------------------+-----------------------------------+----------------------+-----------+------+
| ID                                   | Name                              | Description          | Status    | Size |
+--------------------------------------+-----------------------------------+----------------------+-----------+------+
| 27c99239-56d5-425f-935f-396eab9c2a7b | snapshot for vm1_snapshot_running | Volumen desde Imagen | available |   10 |
+--------------------------------------+-----------------------------------+----------------------+-----------+------+


###### VM PAUSED ######################



(overcloud) [stack@undercloud-0 ~]$ nova pause vm1
(overcloud) [stack@undercloud-0 ~]$ openstack server show vm1
+-------------------------------------+----------------------------------------------------------+
| Field                               | Value                                                    |
+-------------------------------------+----------------------------------------------------------+
| OS-DCF:diskConfig                   | MANUAL                                                   |
| OS-EXT-AZ:availability_zone         | nova                                                     |
| OS-EXT-SRV-ATTR:host                | compute-0.redhat.local                                   |
| OS-EXT-SRV-ATTR:hypervisor_hostname | compute-0.redhat.local                                   |
| OS-EXT-SRV-ATTR:instance_name       | instance-0000000e                                        |
| OS-EXT-STS:power_state              | Paused                                                   |
| OS-EXT-STS:task_state               | None                                                     |
| OS-EXT-STS:vm_state                 | paused                                                   |
| OS-SRV-USG:launched_at              | 2020-05-13T13:26:57.000000                               |
| OS-SRV-USG:terminated_at            | None                                                     |
| accessIPv4                          |                                                          |
| accessIPv6                          |                                                          |
| addresses                           | net1=20.0.1.9                                            |
| config_drive                        |                                                          |
| created                             | 2020-05-13T13:26:09Z                                     |
| flavor                              | n1.tiny (52afe22e-fcbb-4844-ab06-27d7eef9cc18)           |
| hostId                              | 27413a59a2eb57e6f2d85bfb910421917c32252a1f63b130a477743b |
| id                                  | 37fbe1ff-d260-4f50-adcc-41f82b00b103                     |
| image                               |                                                          |
| key_name                            | None                                                     |
| name                                | vm1                                                      |
| project_id                          | 878743a4cce84671ac45777dca8ca163                         |
| properties                          |                                                          |
| security_groups                     | name='default'                                           |
| status                              | PAUSED                                                   |
| updated                             | 2020-05-13T13:52:32Z                                     |
| user_id                             | 800e469f62fc4bd9ae23f33ed3f7f61b                         |
| volumes_attached                    | id='93ee3953-e9f9-4e9e-aa66-2c915517061c'                |
+-------------------------------------+----------------------------------------------------------+
(overcloud) [stack@undercloud-0 ~]$ nova image-create --poll vm1 vm1_snapshot_paused

ERROR (Conflict): Cannot 'createImage' instance 37fbe1ff-d260-4f50-adcc-41f82b00b103 while it is in vm_state paused (HTTP 409) (Request-ID: req-f19ad7bd-5018-46eb-a6d0-7e6a2264a8bd)


Actual results:

ERROR (Conflict): Cannot 'createImage' instance 37fbe1ff-d260-4f50-adcc-41f82b00b103 while it is in vm_state paused (HTTP 409) (Request-ID: req-f19ad7bd-5018-46eb-a6d0-7e6a2264a8bd)
(overcloud) [stack@undercloud-0 ~]$ 


Expected results:

Server snapshotting... 100% complete
Finished

Additional info:

nova.api log

2020-05-13 13:53:12.768 20 INFO nova.api.openstack.wsgi [req-f19ad7bd-5018-46eb-a6d0-7e6a2264a8bd 800e469f62fc4bd9ae23f33ed3f7f61b 878743a4cce84671ac45777dca8ca163 - default default] HTTP exception thrown: Cannot 'createImage' instance 37fbe1ff-d260-4f50-adcc-41f82b00b103 while it is in vm_state paused
2020-05-13 13:53:12.769 20 INFO nova.api.openstack.requestlog [req-f19ad7bd-5018-46eb-a6d0-7e6a2264a8bd 800e469f62fc4bd9ae23f33ed3f7f61b 878743a4cce84671ac45777dca8ca163 - default default] 172.17.1.21 "POST /v2.1/servers/37fbe1ff-d260-4f50-adcc-41f82b00b103/action" status: 409 len: 149 microversion: 2.60 time: 0.188771

~~~
virsh dumpxml 37fbe1ff-d260-4f50-adcc-41f82b00b103 

    <disk type='block' device='disk'>
      <driver name='qemu' type='raw' cache='none' io='native'/>
      <source dev='/dev/sda'/>
      <backingStore/>
      <target dev='vda' bus='virtio'/>
      <serial>93ee3953-e9f9-4e9e-aa66-2c915517061c</serial>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>

~~~

Comment 7 errata-xmlrpc 2022-09-21 12:10:46 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Release of components for Red Hat OpenStack Platform 17.0 (Wallaby)), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2022:6543

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