Bug 1151001 - [RFE] Support auto-convergence and XBZRLE compression during migration
Summary: [RFE] Support auto-convergence and XBZRLE compression during migration
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: ovirt-engine
Classification: oVirt
Component: RFEs
Version: ---
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ovirt-3.6.0-rc
: 3.6.0
Assignee: Martin Betak
QA Contact: Israel Pinto
URL: http://www.ovirt.org/Features/XBZRLE_...
Whiteboard:
Depends On:
Blocks: 867453 1109154
TreeView+ depends on / blocked
 
Reported: 2014-10-09 11:51 UTC by Martin Betak
Modified: 2016-02-18 11:01 UTC (History)
11 users (show)

Fixed In Version: ovirt-engine-3.6.0-0.0.master.20150412172306.git55ba764
Doc Type: Release Note
Doc Text:
Feature: Expose qemu capabilities for auto-convergence and XBZRLE page delta compression. Reason: Reduce VM downtime and improve convergence during migration. Result: It is now possible to specify whether the auto-convergence and/or migration compression features should be used during VM live migration. This is supported by hierarchical configuration in 3 levels: global (engine-config), cluster and VM. Details: http://www.ovirt.org/Features/XBZRLE_and_Auto-Convergence
Clone Of:
Environment:
Last Closed: 2016-02-18 11:01:00 UTC
oVirt Team: Virt
Embargoed:
rule-engine: ovirt-3.6.0+
ylavi: planning_ack+
rule-engine: devel_ack+
rule-engine: testing_ack+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
oVirt gerrit 31991 0 master MERGED vdsm: Add support for VIR_MIGRATE_AUTO_CONVERGE parameter Never
oVirt gerrit 31992 0 master MERGED vdsm: Add support for VIR_MIGRATE_COMPRESSED parameter Never
oVirt gerrit 32132 0 None None None Never
oVirt gerrit 32133 0 master MERGED restapi: Expose vm.auto_converge and vm.migrate_compressed properties Never
oVirt gerrit 32495 0 master MERGED frontend: Add support for auto-convergence and XBZRLE compression Never

Description Martin Betak 2014-10-09 11:51:55 UTC 
Take advantage of new libvirt migration parameters introduced in RHEL 7.1

Auto-convergence helps live migration converge when the guest is dirtying pages too fast for the network throughput.

XZBRLE feature compresses same memory pages, speeding up migration for gests with many similar/identical pages.
Comment 2 Israel Pinto 2016-02-17 11:54:11 UTC 
Verify:
Support live migration with XBZRLE page delta compression:
https://bugzilla.redhat.com/show_bug.cgi?id=1109154#c6
Help live migration converge when guest dirties pages too fast
https://bugzilla.redhat.com/show_bug.cgi?id=867453#c12
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