Bug 2229750 - Cross-AZ backups are broken
Summary: Cross-AZ backups are broken
Keywords:
Status: ON_DEV
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-cinder
Version: 17.0 (Wallaby)
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: z2
: 17.1
Assignee: Brian Rosmaita
QA Contact: Evelina Shames
Andy Stillman
URL:
Whiteboard:
Depends On:
Blocks: 1905097
TreeView+ depends on / blocked
 
Reported: 2023-08-07 14:26 UTC by Alan Bishop
Modified: 2023-08-15 13:05 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Known Issue
Doc Text:
When you specify an availability zone (AZ) when creating a Block Storage volume backup, the AZ is ignored. This may cause the backup to fail if the configuration of your AZs prevents the scheduler from satisfying the backup request. This issue does not affect the cross-availability-zone creation of volumes from existing backups.
Clone Of:
Environment:
Last Closed:
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Launchpad 1912624 0 None None None 2023-08-07 14:26:48 UTC
OpenStack gerrit 785099 0 None NEW support to create backup with specified availability_zone 2023-08-07 14:26:48 UTC
Red Hat Issue Tracker OSP-27264 0 None None None 2023-08-07 14:29:12 UTC

Description Alan Bishop 2023-08-07 14:26:48 UTC 
Description of problem:

The cinder-backup service is no longer able to back up a volume in a different AZ. 

How reproducible:

Always

Steps to Reproduce:
1. Prepare a deployment with a cinder-volume service in one AZ, and the backup service in a different AZ.
2. Create a volume
3. Create a cross-AZ backup of that volume

Actual results:

The backup fails, with an error message in the cinder-scheduler log:

2023-08-07 12:52:34.964 2 ERROR cinder.scheduler.manager [req-08d6c888-8ee0-4d95-92ab-735bb723b790 256db7de35ee451b946003930aef5c99 262b573d07f2425ba7eb3718825e5893 - - -] Service not found for creating backup.: cinder.exception.ServiceNotFound: Service cinder-backup could not be found.

Expected results:

The backup succeeds.

Additional info:

The issue was reported upstream a while ago, and there's a patch proposed to fix it. The patch needs to be updated (it's in merge-conflict).
Comment 1 Brian Rosmaita 2023-08-08 14:00:18 UTC 
Regression was introduced in upstream ussuri by change Ie2afb57c4861c4, so this should not need to go to train.
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