[libvirt-users] kvm libvirt migration problem

[潘昊]

 Hi everyone:

I am new here

I am using kvm and libvirt on my Dell server. Now i am trying to migrate one
virtual machine from a physical server to another. However, I failed
everytime.

In virsh on physicalServer1, I typed:

virsh # migrate virtualmachine1 qemu+ssh://username@physicalServer2/system
error: operation failed: migration to 'tcp: physicalServer2:49163' failed:
migration failed

Then I searched FAQ part on libvirt.org http://wiki.libvirt.org/page/FAQ
it says:

* error: operation failed: migration to '...' failed: migration failed *

This is an error often encountered when trying to migrate with QEMU/KVM. This
typically happens with plain migration, when the source VM cannot connect to
the destination host. You will want to make sure your hosts are properly
configured for migration (see the migration section of this FAQ)



I managed to ssh physicalServer2 in virtualmachine1 shell. So the above red
part did not explain my failure.

I also open ports on physicalServer2, iptables -L shows following
information:

Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT udp -- anywhere anywhere udp dpt:domain
ACCEPT tcp -- anywhere anywhere tcp dpt:domain
ACCEPT udp -- anywhere anywhere udp dpt:bootps
ACCEPT tcp -- anywhere anywhere tcp dpt:bootps
ACCEPT udp -- anywhere anywhere udp dpt:domain
ACCEPT tcp -- anywhere anywhere tcp dpt:domain
ACCEPT udp -- anywhere anywhere udp dpt:bootps
ACCEPT tcp -- anywhere anywhere tcp dpt:bootps
ACCEPT tcp -- anywhere anywhere state NEW tcp dpts:49152:49215


Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere 192.168.122.0/24 state RELATED,ESTABLISHED
ACCEPT all -- 192.168.122.0/24 anywhere
ACCEPT all -- anywhere anywhere
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
ACCEPT all -- anywhere 192.168.122.0/24 state RELATED,ESTABLISHED
ACCEPT all -- 192.168.122.0/24 anywhere
ACCEPT all -- anywhere anywhere
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable


Chain OUTPUT (policy ACCEPT)
target prot opt source destination


The /var/log/libvirt/qemu/virtualmachine1.log on physicalServer2:

2011-05-06 13:37:30.708: starting up
LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin
QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.14 -enable-kvm -m 2048 -smp
1,sockets=1,cores=1,threads=1 -name openjudge-test -uuid
a8c704bc-a4f9-90db-3e57-40e60b00aac1 -nodefconfig -nodefaults -chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/virtualmachine1.monitor,server,nowait
-mon chardev=charmonitor,id=monitor,mode=readline -rtc base=utc -boot c
-drive
file=/media/nfs/virtualmachine1.img,if=none,id=drive-ide0-0-0,format=raw
-device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -drive
if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device
ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev
tap,fd=20,id=hostnet0 -device
rtl8139,netdev=hostnet0,id=net0,mac=00:16:36:8a:22 :a0,bus=pci.0,addr=0x3
-chardev pty,id=charserial0 -device
isa-serial,chardev=charserial0,id=serial0 -usb -vnc 127.0.0.1:2 -vga cirrus
-incoming tcp:0.0.0.0:49163 -device
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4
char device redirected to /dev/pts/0
2011-05-06 13:37:30.915: shutting down


The /var/log/libvirt/qemu/virtualmachine1.log on physicalServer1 is empty.

Both physical servers are using Ubuntu 11.04. The libvirt and kvm used are
installed by apt-get. The libvirt version is 0.8.8.

Is there anyone can help me? Thanks for help!


-- 
Best wishes,
-Panda
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