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6dfc042c21
Paolo Bonzini points out that in my refactoring of the code for virDomainMigrate(), I added a check for the return value from virDomainMigratePerform(). The problem is that we don't want to exit if we fail, we actually want to go on and do virDomainMigrateFinish2() with a non-0 return code to clean things up. Remove the check. While reproducing this issue, I also noticed that we wouldn't always properly propagate an error message. In particular, I found that if you blocked off the migration ports (with iptables) and then tried the migration, it would actually fail but we would get no failure output from Qemu. Therefore, we would think we succeeded, and leave a huge mess behind us. Execute the monitor command "info migrate", and look for a failure string in there as well. Signed-off-by: Chris Lalancette <clalance@redhat.com>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>