[Users] Help: Fatal error during migration

[Gmail]

hello，dears：

i have a ovirt-engine with two node 

172.30.0.229	ovirt-engine.local
172.30.0.231	ovirt-node-1.local
172.30.0.232	ovirt-node-2.local

When i use the live migration ，migrate a vm from  node2 to node1 , it failed with the error code 12 && error msg  'Fatal error during migration' ,  
I don't know why , could anybody help me ? thanks

Detail log as bellow :

tail -f /var/log/ovirt-engine/engine.log
2012-04-25 22:59:52,744 INFO  [org.ovirt.engine.core.bll.VdsSelector] (http--0.0.0.0-8080-16) Checking for a specific VDS only - id:ae567034-5d8e-11e1-bdc9-a7168ad4d39f, name:ovirt-node-1.local, host_name(ip):172.30.0.231
2012-04-25 22:59:52,745 INFO  [org.ovirt.engine.core.bll.MigrateVmToServerCommand] (pool-5-thread-46) Running command: MigrateVmToServerCommand internal: false. Entities affected :  ID: f73f17a8-a418-4318-af0e-2cea18ab597a Type: VM
2012-04-25 22:59:52,748 INFO  [org.ovirt.engine.core.bll.VdsSelector] (pool-5-thread-46) Checking for a specific VDS only - id:ae567034-5d8e-11e1-bdc9-a7168ad4d39f, name:ovirt-node-1.local, host_name(ip):172.30.0.231
2012-04-25 22:59:52,754 INFO  [org.ovirt.engine.core.vdsbroker.MigrateVDSCommand] (pool-5-thread-46) START, MigrateVDSCommand(vdsId = bcee74d4-5d8e-11e1-a03e-8bc4768fc531, vmId=f73f17a8-a418-4318-af0e-2cea18ab597a, srcHost=172.30.0.232, dstVdsId=ae567034-5d8e-11e1-bdc9-a7168ad4d39f, dstHost=172.30.0.231:54321, migrationMethod=ONLINE), log id: 444b3006
2012-04-25 22:59:52,757 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.MigrateBrokerVDSCommand] (pool-5-thread-46) VdsBroker::migrate::Entered (vm_guid=f73f17a8-a418-4318-af0e-2cea18ab597a, srcHost=172.30.0.232, dstHost=172.30.0.231:54321,  method=online
2012-04-25 22:59:52,757 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.MigrateBrokerVDSCommand] (pool-5-thread-46) START, MigrateBrokerVDSCommand(vdsId = bcee74d4-5d8e-11e1-a03e-8bc4768fc531, vmId=f73f17a8-a418-4318-af0e-2cea18ab597a, srcHost=172.30.0.232, dstVdsId=ae567034-5d8e-11e1-bdc9-a7168ad4d39f, dstHost=172.30.0.231:54321, migrationMethod=ONLINE), log id: 2a26d38e
2012-04-25 22:59:52,778 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.MigrateBrokerVDSCommand] (pool-5-thread-46) FINISH, MigrateBrokerVDSCommand, log id: 2a26d38e
2012-04-25 22:59:52,817 INFO  [org.ovirt.engine.core.vdsbroker.MigrateVDSCommand] (pool-5-thread-46) FINISH, MigrateVDSCommand, return: MigratingFrom, log id: 444b3006
2012-04-25 22:59:53,281 ERROR [org.ovirt.engine.core.vdsbroker.VdsUpdateRunTimeInfo] (QuartzScheduler_Worker-40) Rerun vm f73f17a8-a418-4318-af0e-2cea18ab597a. Called from vds ovirt-node-2.local
2012-04-25 22:59:53,286 INFO  [org.ovirt.engine.core.vdsbroker.UpdateVdsDynamicDataVDSCommand] (pool-5-thread-46) START, UpdateVdsDynamicDataVDSCommand(vdsId = ae567034-5d8e-11e1-bdc9-a7168ad4d39f, vdsDynamic=org.ovirt.engine.core.common.businessentities.VdsDynamic at 34c39cde), log id: 4c2ed94e
2012-04-25 22:59:53,299 INFO  [org.ovirt.engine.core.vdsbroker.UpdateVdsDynamicDataVDSCommand] (pool-5-thread-46) FINISH, UpdateVdsDynamicDataVDSCommand, log id: 4c2ed94e
2012-04-25 22:59:53,304 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.MigrateStatusVDSCommand] (pool-5-thread-46) START, MigrateStatusVDSCommand(vdsId = bcee74d4-5d8e-11e1-a03e-8bc4768fc531, vmId=f73f17a8-a418-4318-af0e-2cea18ab597a), log id: 69d2528
2012-04-25 22:59:53,320 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.BrokerCommandBase] (pool-5-thread-46) Failed in MigrateStatusVDS method
2012-04-25 22:59:53,320 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.BrokerCommandBase] (pool-5-thread-46) Error code migrateErr and error message VDSGenericException: VDSErrorException: Failed to MigrateStatusVDS, error = Fatal error during migration
2012-04-25 22:59:53,321 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.BrokerCommandBase] (pool-5-thread-46) Command org.ovirt.engine.core.vdsbroker.vdsbroker.MigrateStatusVDSCommand return value 
 Class Name: org.ovirt.engine.core.vdsbroker.vdsbroker.StatusOnlyReturnForXmlRpc
mStatus                       Class Name: org.ovirt.engine.core.vdsbroker.vdsbroker.StatusForXmlRpc
mCode                         12
mMessage                      Fatal error during migration


2012-04-25 22:59:53,321 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.BrokerCommandBase] (pool-5-thread-46) Vds: ovirt-node-2.local
2012-04-25 22:59:53,321 ERROR [org.ovirt.engine.core.vdsbroker.VDSCommandBase] (pool-5-thread-46) Command MigrateStatusVDS execution failed. Exception: VDSErrorException: VDSGenericException: VDSErrorException: Failed to MigrateStatusVDS, error = Fatal error during migration
2012-04-25 22:59:53,321 INFO  [org.ovirt.engine.core.vdsbroker.vdsbroker.MigrateStatusVDSCommand] (pool-5-thread-46) FINISH, MigrateStatusVDSCommand, log id: 69d2528