On 26 Dec 2013, at 09:20, bigclouds wrote:

hi,all there are many channels like spicevmc,unix,vdsm-agent, if that devices impact live migration? from following erroe message, i have no idea where is the root cause?

looks like your QEMU process died, might be that there is a problem in creating the channel/device on the dst you can find more help in libvirt and/or qemu logs as this is on their side (which may be triggered by incompatibility between src and dst host)

Thanks, michal

please take a look at it.

thanks Thread-107294::DEBUG::2013-12-26 09:25:24,544::libvirtvm::358::vm.Vm::(cancel) vmId=`5819a89c-7e24-4f5a-8d42-24bfba3a39bf`::canceling migration downtime thread Thread-107294::DEBUG::2013-12-26 09:25:24,545::libvirtvm::417::vm.Vm::(stop) vmId=`5819a89c-7e24-4f5a-8d42-24bfba3a39bf`::stopping migration monitor thread Thread-107312::DEBUG::2013-12-26 09:25:24,545::libvirtvm::355::vm.Vm::(run) vmId=`5819a89c-7e24-4f5a-8d42-24bfba3a39bf`::migration downtime thread exiting Thread-107294::ERROR::2013-12-26 09:25:24,546::vm::196::vm.Vm::(_recover) vmId=`5819a89c-7e24-4f5a-8d42-24bfba3a39bf`::Failed to acquire lock: No such process Thread-107300::DEBUG::2013-12-26 09:25:24,546::vm::261::vm.Vm::(run) vmId=`43774d10-f550-42f6-81da-6a117df5135e`::migration semaphore acquired Thread-107294::ERROR::2013-12-26 09:25:24,690::vm::284::vm.Vm::(run) vmId=`5819a89c-7e24-4f5a-8d42-24bfba3a39bf`::Failed to migrate Traceback (most recent call last): File "/usr/share/vdsm/vm.py", line 269, in run self._startUnderlyingMigration() File "/usr/share/vdsm/libvirtvm.py", line 482, in _startUnderlyingMigration None, maxBandwidth) File "/usr/share/vdsm/libvirtvm.py", line 518, in f ret = attr(*args, **kwargs) File "/usr/lib64/python2.6/site-packages/vdsm/libvirtconnection.py", line 87, in wrapper ret = f(*args, **kwargs) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 1178, in migrateToURI2 if ret == -1: raise libvirtError ('virDomainMigrateToURI2() failed', dom=self) libvirtError: Failed to acquire lock: No such process Thread-107300::DEBUG::2013-12-26 09:25:24,709::libvirtvm::457::vm.Vm::(_startUnderlyingMigration) vmId=`43774d10-f550-42f6-81da-6a117df5135e`::starting migration to qemu+tls://testserver1.com/system Thread-107327::DEBUG::2013-12-26 09:25:24,709::libvirtvm::343::vm.Vm::(run) vmId=`43774d10-f550-42f6-81da-6a117df5135e`::migration downtime thread started Thread-107328::DEBUG::2013-12-26 09:25:24,709::libvirtvm::379::vm.Vm::(run) vmId=`43774d10-f550-42f6-81da-6a117df5135e`::starting migration monitor thread libvirtEventLoop::DEBUG::2013-12-26 09:25:25,250::libvirtvm::2860::vm.Vm::(_onLibvirtLifecycleEvent) vmId=`bdc42fa3-91f0-48d7-b7ed-4908bb86e262`::event Resumed detail 0 opaque None libvirtEventLoop::DEBUG::2013-12-26 09:25:25,307::libvirtvm::2860::vm.Vm::(_onLibvirtLifecycleEvent) vmId=`bdc42fa3-91f0-48d7-b7ed-4908bb86e262`::event Resumed detail 1 opaque None Thread-107296::DEBUG::2013-12-26 09:25:25,331::libvirtvm::358::vm.Vm::(cancel) vmId=`bdc42fa3-91f0-48d7-b7ed-4908bb86e262`::canceling migration downtime thread Thread-107296::DEBUG::2013-12-26 09:25:25,332::libvirtvm::417::vm.Vm::(stop) vmId=`bdc42fa3-91f0-48d7-b7ed-4908bb86e262`::stopping migration monitor thread Thread-107296::ERROR::2013-12-26 09:25:25,332::vm::196::vm.Vm::(_recover) vmId=`bdc42fa3-91f0-48d7-b7ed-4908bb86e262`::Domain not found: no domain with matching name 'testZhuomian-1' Thread-107314::DEBUG::2013-12-26 09:25:25,332::libvirtvm::355::vm.Vm::(run) vmId=`bdc42fa3-91f0-48d7-b7ed-4908bb86e262`::migration downtime thread exiting Thread-107296::ERROR::2013-12-26 09:25:25,394::vm::284::vm.Vm::(run) vmId=`bdc42fa3-91f0-48d7-b7ed-4908bb86e262`::Failed to migrate Traceback (most recent call last): File "/usr/share/vdsm/vm.py", line 269, in run self._startUnderlyingMigration() File "/usr/share/vdsm/libvirtvm.py", line 482, in _startUnderlyingMigration None, maxBandwidth) File "/usr/share/vdsm/libvirtvm.py", line 518, in f ret = attr(*args, **kwargs) File "/usr/lib64/python2.6/site-packages/vdsm/libvirtconnection.py", line 87, in wrapper ret = f(*args, **kwargs) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 1178, in migrateToURI2 if ret == -1: raise libvirtError ('virDomainMigrateToURI2() failed', dom=self) libvirtError: Domain not found: no domain with matching name 'testZhuomian-1'

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