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Bug 1392030 - virsh save doesn't work after postcopy migration
Summary: virsh save doesn't work after postcopy migration
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: libvirt
Version: 7.3
Hardware: Unspecified
OS: Unspecified
high
unspecified
Target Milestone: rc
: ---
Assignee: Jiri Denemark
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 1374718
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-11-04 15:40 UTC by Marcel Kolaja
Modified: 2016-12-06 17:11 UTC (History)
13 users (show)

Fixed In Version: libvirt-2.0.0-10.el7_3.1
Doc Type: Bug Fix
Doc Text:
Previously, the libvirt library did not disable post-copy on the destination when a migration completed. As a consequence, it was not possible to save such a domain on a disk. With this update, libvirt properly disables post-copy after the migration finishes. As a result, subsequent migration does not use post-copy unless it is requested, and saving the domain to a disk succeeds.
Clone Of: 1374718
Environment:
Last Closed: 2016-12-06 17:11:29 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2016:2885 0 normal SHIPPED_LIVE libvirt bug fix update 2016-12-06 22:01:23 UTC

Description Marcel Kolaja 2016-11-04 15:40:57 UTC 
This bug has been copied from bug #1374718 and has been proposed
to be backported to 7.3 z-stream (EUS).
Comment 6 zhe peng 2016-11-09 06:59:12 UTC 
can reproduce this issue.
build :
libvirt-2.0.0-9.el7.x86_64
qemu-kvm-rhev-2.6.0-26.el7.x86_64

verify with build:
libvirt-2.0.0-10.el7_3.1.x86_64
qemu-img-rhev-2.6.0-27.el7.x86_64

step:
A:
1 start a guest on source 
2 on source host do
# virsh migrate rhel7 qemu+ssh://$target/system --postcopy --live --verbose
Migration: [100 %]
3 on target host
# virsh save rhel7 /tmp/rhel7

Domain rhel7 saved to /tmp/rhel7

B:
1.on source host do
 #virsh migrate rhel7 qemu+ssh://$target/system --postcopy --postcopy-after-precopy --live --verbose
Migration: [100 %]
2 on target host
# virsh save rhel7 /tmp/rhel7

Domain rhel7 saved to /tmp/rhel7

# virsh restore /tmp/rhel7
Domain restored from /tmp/rhel7
# virsh list --all
 Id    Name                           State
----------------------------------------------------
 3     rhel7                          running
C:
1. on source host do 
# virsh migrate rhel7 qemu+ssh://$target/system --postcopy --live --verbose
open another console, run
# virsh migrate-postcopy rhel7
2. on target host
# virsh save rhel7 /tmp/rhel7

Domain rhel7 saved to /tmp/rhel7

move to verified.
Comment 8 errata-xmlrpc 2016-12-06 17:11:29 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, 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://rhn.redhat.com/errata/RHBA-2016-2885.html
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