[libvirt-users] live migration error without shared storage
command: virsh migrate --live --copy-storage-all vm qemu+ssh://destinationHost/system error : unexpected failure PS log file in the jpg
On 10/27/2011 09:37 PM, Luengffy XUE wrote:
command:
virsh migrate --live --copy-storage-all vm qemu+ssh://destinationHost/system
error : unexpected failure
PS log file in the jpg
Your jpg takes up a lot of bandwidth; it would be more efficient if you copy and paste the text from your console, rather than a screenshot of the console. As to the actual error, I'm not sure if I can offer advice until I try to reproduce it, but I do know that --copy-storage-all hasn't received as much testing. Make sure that an empty file exists on the destination prior to the migration attempt, in case the error is stemming from qemu on the destination unable to open the file with SELinux permissions in force. Also, what version of libvirt are you using? Newer libvirt tries harder to avoid the lame error messages from qemu being unable to start a migration without giving any reasons why. -- Eric Blake eblake@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org
2011/10/28 Eric Blake <eblake@redhat.com>
On 10/27/2011 09:37 PM, Luengffy XUE wrote:
command:
virsh migrate --live --copy-storage-all vm qemu+ssh://destinationHost/**system
error : unexpected failure
PS log file in the jpg
Your jpg takes up a lot of bandwidth; it would be more efficient if you copy and paste the text from your console, rather than a screenshot of the console.
I appologize for this. I ca paste the text version. In the destinaiton host's /var/log/libvirt/qemu/vm.log It is described as: 2011-10-28 11:29:31.715: 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 512 -smp 1,sockets=1,cores=1,threads=1 -name VCentOS -uuid f4dcf69e-5c23-a4bd-0262-0fee80b2bba6 -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/VCentOS.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=readline -rtc base=utc -boot c -drive file=/var/lib/libvirt/images/CentOS.qcow2,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=19,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:f6:2b:3a,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -usb -vnc 127.0.0.1:0 -vga cirrus -incoming tcp:0.0.0.0:49170 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 char device redirected to /dev/pts/1 Receiving block device images Completed 0 % qemu: warning: error while loading state section id 2 load of migration failed 2011-10-28 11:29:32.401: shutting down
As to the actual error, I'm not sure if I can offer advice until I try to reproduce it, but I do know that --copy-storage-all hasn't received as much testing. Make sure that an empty file exists on the destination prior to the migration attempt, in case the error is stemming from qemu on the destination unable to open the file with SELinux permissions in force.
I have created the right image file on the destination host.I have already reardown the apparmor. I want to know how to shut down the selinux on the ubuntu server.
Also, what version of libvirt are you using? Newer libvirt tries harder to avoid the lame error messages from qemu being unable to start a migration without giving any reasons why.
The version of libvit I am using is: Compiled against library : libvir 0.8.8 Using library: libvir 0.8.8 Using API : QEMU 0.8.8 Runing hypervisor: QEMU 0.14.0
-- Eric Blake eblake@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org
Regards Leungffy
On 10/28/2011 12:54 AM, Luengffy XUE wrote:
As to the actual error, I'm not sure if I can offer advice until I try to reproduce it, but I do know that --copy-storage-all hasn't received as much testing. Make sure that an empty file exists on the destination prior to the migration attempt, in case the error is stemming from qemu on the destination unable to open the file with SELinux permissions in force.
I have created the right image file on the destination host.I have already reardown the apparmor. I want to know how to shut down the selinux on the ubuntu server.
SELinux and AppArmor are competing security measures, and tend to not be installed on the same machine. SELinux is typically Fedora-based, while Ubuntu favors AppArmor - but I'm not familiar enough with AppArmor to know if that would be the root cause of your problems.
Also, what version of libvirt are you using? Newer libvirt tries harder to avoid the lame error messages from qemu being unable to start a migration without giving any reasons why.
The version of libvit I am using is:
Compiled against library : libvir 0.8.8 Using library: libvir 0.8.8 Using API : QEMU 0.8.8 Runing hypervisor: QEMU 0.14.0
Are you comfortable building libvirt yourself? The latest version is 0.9.6, and has had some improvements in helping diagnose the causes of migration failures. -- Eric Blake eblake@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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Eric Blake -
Luengffy XUE