Bug 1867086 - incremental backup: RFE: migrate bitmaps over qemu's migration stream also for shared-storage migration
Summary: incremental backup: RFE: migrate bitmaps over qemu's migration stream also fo...
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux Advanced Virtualization
Classification: Red Hat
Component: libvirt
Version: 8.2
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: 8.3
Assignee: Peter Krempa
QA Contact: yisun
URL:
Whiteboard:
Depends On: 1790492
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-08-07 10:29 UTC by Peter Krempa
Modified: 2020-12-04 16:26 UTC (History)
7 users (show)

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Last Closed: 2020-12-04 16:26:24 UTC
Type: Bug
Target Upstream Version:
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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.
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