Bug 1992858

Summary:	[OSP 17] Avoid duplicate BDMs during reserve_block_device_name
Product:	Red Hat OpenStack	Reporter:	Lee Yarwood <lyarwood>
Component:	openstack-nova	Assignee:	Lee Yarwood <lyarwood>
Status:	CLOSED ERRATA	QA Contact:	OSP DFG:Compute <osp-dfg-compute>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	17.0 (Wallaby)	CC:	dasmith, eglynn, jhakimra, kchamart, sbauza, sgordon, vromanso
Target Milestone:	beta	Keywords:	Patch, Triaged
Target Release:	17.0
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	openstack-nova-23.0.3-0.20210908140341.e39bbdc.el9ost	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1992863 (view as bug list)		Environment:
Last Closed:	2022-09-21 12:16:15 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Lee Yarwood 2021-08-11 20:18:13 UTC

Description of problem:

Duplicate BlockDeviceMapping if attaching volumes too fast 
https://launchpad.net/bugs/1937375

When attaching a volume to a running instance the nova-api validates that
the volume is not already attached to the instance. However nova-compute
is responsible for actually creating the BDM entry in the database.
If sending attach requests fast enough it can be possible that the same
"attach_volume" request can be sent to nova-compute for the same
volume/instance combination.

Comment 5 errata-xmlrpc 2022-09-21 12:16:15 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