[ovirt-users] migration of a VM: fails

[cmc]

Hi,

Just trying to place in maintenance mode for a version upgrade, and
one VM fails to migrate. The other 20-odd move over successfully. In
/var/log/libvirt/qemu/, the VM's log on the source reports:

2017-05-16 09:48:06.339+0000: initiating migration
2017-05-16T09:52:25.498932Z qemu-kvm: socket_writev_buffer: Got err=32
for (131328/18446744073709551615)
2017-05-16 09:52:47.311+0000: initiating migration
2017-05-16T09:57:06.755402Z qemu-kvm: socket_writev_buffer: Got err=32
for (69776/18446744073709551615)
2017-05-16 09:57:55.109+0000: initiating migration
2017-05-16T10:02:14.143221Z qemu-kvm: socket_writev_buffer: Got err=32
for (69776/18446744073709551615)
2017-05-16 10:02:59.497+0000: initiating migration
2017-05-16T10:07:18.542872Z qemu-kvm: socket_writev_buffer: Got err=32
for (69776/18446744073709551615)
2017-05-16 10:08:03.896+0000: initiating migration
2017-05-16T10:12:23.206731Z qemu-kvm: socket_writev_buffer: Got err=32
for (69776/18446744073709551615)
2017-05-16 10:13:08.941+0000: initiating migration
2017-05-16T10:17:27.861843Z qemu-kvm: socket_writev_buffer: Got err=32
for (69776/18446744073709551615)
2017-05-16 10:18:13.690+0000: initiating migration
2017-05-16T10:22:32.929689Z qemu-kvm: socket_writev_buffer: Got err=32
for (69803/18446744073709551615)
2017-05-16 10:23:19.846+0000: initiating migration
2017-05-16T10:27:39.175724Z qemu-kvm: socket_writev_buffer: Got err=32
for (69776/18446744073709551615)
2017-05-16 10:28:25.141+0000: initiating migration
2017-05-16T10:28:35.620070Z qemu-kvm: socket_writev_buffer: Got err=32
for (65753/18446744073709551615)
2017-05-16 10:29:10.678+0000: initiating migration
2017-05-16T10:33:29.718527Z qemu-kvm: socket_writev_buffer: Got err=32
for (53477/18446744073709551615)
2017-05-16 10:38:35.517+0000: initiating migration


On the destination host, it reports:

2017-05-16T10:33:29.598425Z qemu-kvm: Unknown combination of migration flags: 0
2017-05-16T10:33:29.599524Z qemu-kvm: error while loading state
section id 2(ram)
2017-05-16T10:33:29.601978Z qemu-kvm: load of migration failed: Invalid argument
2017-05-16 10:33:29.808+0000: shutting down

In the engine log:

2017-05-16 11:57:28,675+01 INFO
[org.ovirt.engine.core.vdsbroker.monitoring.VmAnalyzer]
(DefaultQuartzScheduler5) [f8aa18b3-97b9-48e2-a681-cf3aaed330a5] VM
'4921c5f5-7748-47eb-a90c-8e9ecbd91bcf'(pete_win7) was unexpectedly
detected as 'MigratingTo' on VDS
'424e6317-ad68-459b-bf88-7292e26710ae'(kvm-ldn-02) (expected on
'e050c27f-8709-404c-b03e-59c0167a824b')


It stays in 'preparing for maintenance mode' on the GUI for the host,
and reports errors on the status pane below, but then it reports that
the host has successfully been put into maintenance mode, even though
the VM is still showing as in migration. After more time has elapsed,
it reports a failure again, and then eventually the host will again
report it is in maintenance mode, and so on.

When I hit 'cancel migration' it reports that the migration has been
successfully cancelled in the status pane at the bottom, but then
shows it still in migration in the upper window. When I select the VM
itself, it reports it is "Migrating From: 99%". If I cancel the
migration here, it actually does cancel the migration properly.

The VM itself is up and running ok.

Version of oVirt is 4.1.0.4-1.el7

Thanks in advance for any help. Please let me know if you need any full logs.

Regards,

Cam