Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

Bug 1867086

Summary:	incremental backup: RFE: migrate bitmaps over qemu's migration stream also for shared-storage migration
Product:	Red Hat Enterprise Linux Advanced Virtualization	Reporter:	Peter Krempa <pkrempa>
Component:	libvirt	Assignee:	Peter Krempa <pkrempa>
Status:	CLOSED WONTFIX	QA Contact:	yisun
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	8.2	CC:	aliang, dyuan, lmen, ngu, virt-maint, xuzhang, ymankad
Target Milestone:	rc	Keywords:	RFE, Triaged
Target Release:	8.3	Flags:	ymankad: mirror+
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-12-04 16:26:24 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:
Bug Depends On:	1790492
Bug Blocks:

Description Peter Krempa 2020-08-07 10:29:15 UTC

Description of problem:
Upstream qemu developers claim that migrating block dirty bitmaps over the qemu migration stream rather than having source qemu save them to disk and destination qemu to reload them is more efficient.

Libvirt should investigate and eventually drive qemu to do the bitmap migration using the migration stream.

Comment 2 Peter Krempa 2020-12-04 16:26:24 UTC

For now I don't have a compelling justification to implement this.