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Description of problem:
Due a bug in the location of a socket file with libvirt, tunnelled migration to move a virtual machine from one host server to another doesn't work in RHEL 6.0.
There *is* a workaround, of changing the process ownership of QEMU from the default qemu:qemu:, to root:root, however this introduces potential security risk.
Chris Lalancette has created (very simple) working patches upstream, which allow tunnelled migration to work properly out of the box. (No change to root:root ownership needed)
Version-Release number of selected component (if applicable):
libvirt 0.8.1-24 and earlier
How reproducible:
Every time.
Steps to Reproduce:
1. Using a standard installation of RHEL 6.0 running libvirt, attempt to migrate a virtual machine from one host server to another:
# virsh migrate --live vm1 qemu+ssh://host2/system --p2p --tunnelled --desturi tcp:host2
Migration will fail every time.
Actual results:
Migration fails.
Expected results:
The guest virtual machine will migrate to the new host server without incident.
Additional info:
Tested tunnelled migration in libvirt-0.8.1-25.el6 with qemu:qemu owned QEMU. It worked fine for me.
Comment 6releng-rhel@redhat.com
2010-11-10 21:05:40 UTC
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.