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Re: [libvirt-users] Migration error



zorgman a écrit :
Hi,

I'm trying to migrate a VM from one libvirt 0.7.6-1 (qemu-kvm 0.11.1+dfsg-1) to another libvirt 0.7.6-2 (qemu-kvm 0.11.1+dfsg-1) connected with SSH , i have followed pre requite (same shared, same path, same network conf ...) . But when i migrate , i have following error : operation failed:

/migration to 'tcp:x.x.x.x:49157' failed: migration failed
DETAIL :

Unable to migrate guest:
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/migrate.py", line 457, in _async_migrate
   vm.migrate(dstconn, migrate_uri, rate, live, secure)
File "/usr/share/virt-manager/virtManager/domain.py", line 1272, in migrate
   self._backend.migrate(destconn.vmm, flags, newname, interface, rate)
 File "/usr/lib/python2.5/site-packages/libvirt.py", line 429, in migrate
if ret is None:raise libvirtError('virDomainMigrate() failed', dom=self) libvirtError: operation failed: migration to 'tcp:portable.artis.int:49157' failed: migration failed


/on the destination libvirt i can see in syslog :

/Feb 26 11:16:25 portable libvirtd: 11:16:25.281: error : qemudDomainGetInfo:3744 : Domain not found: no domain with matching uuid '71c22b3b-4c93-80bd-8387-2b502887c2aa' Feb 26 11:16:25 portable libvirtd: 11:16:25.283: error : qemudDomainGetInfo:3744 : Domain not found: no domain with matching uuid '71c22b3b-4c93-80bd-8387-2b502887c2aa'



Feb 26 11:16:25 portable kernel: [ 3022.213730] virbr0: port 1(vnet0) entering disabled state Feb 26 11:16:25 portable kernel: [ 3022.228917] device vnet0 left promiscuous mode Feb 26 11:16:25 portable kernel: [ 3022.228925] virbr0: port 1(vnet0) entering disabled state Feb 26 11:16:25 portable NetworkManager: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/vnet0, iface: vnet0) Feb 26 11:17:01 portable /USR/SBIN/CRON[2606]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Feb 26 11:24:47 portable NetworkManager: <WARN> nm_signal_handler(): Caught signal 15, shutting down normally. Feb 26 11:24:47 portable NetworkManager: <info> (wlan0): taking down device.
Feb 26 11:24:47 portable NetworkManager: <info>  exiting (success)

/in the destination libvirt vm log i can see the cmd running by migration:

/LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin HOME=/ QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.11 -enable-kvm -m 256 -smp 1 -name testmigration -uuid 71c22b3b-4c93-80bd-8387-2b502887c2aa -monitor unix:/var/lib/libvirt/qemu/testmigration.monitor,server,nowait -boot c -drive file=/mnt/testmigration.img,if=virtio,boot=on,format=qcow2 -drive if=ide,media=cdrom,bus=1,unit=0,format=raw -net nic,macaddr=52:54:00:7a:a4:98,vlan=0,model=virtio,name=net0 -net tap,fd=50,vlan=0,name=hostnet0 -serial pty -parallel none -usb -vnc 127.0.0.1:0 -k fr -vga cirrus -incoming tcp:0.0.0.0:49156 -balloon virtio/



I'm using Debian.

The problem occure online as offline mod.





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i have forgotten, after migrate has failed, my guest has some IO error and remount my system in read only.


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