** Changed in: nova
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1226756
Title:
xenapi sync_power_states peridodic task can traceback when instance
not found
Status in OpenStack Compute (Nova):
Fix Released
Bug description:
When an instance is not found on the hypervisor during the
sync_power_states periodic task, possibly because it's being
resized/migrated, there's a traceback in the compute logs.
2013-09-10 17:46:27.736 32525 ERROR nova.openstack.common.periodic_task [-]
Error during ComputeManager._sync_power_states: Could not find VM with name
instance-00ab07fd-b5b0-44cb-8b62-9df838c7f468
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
Traceback (most recent call last):
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
File
"/opt/rackstack/410.23/nova/lib/python2.6/site-packages/nova/openstack/common/periodic_task.py",
line 180, in run_periodic_tasks
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
task(self, context)
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
File
"/opt/rackstack/410.23/nova/lib/python2.6/site-packages/nova/compute/manager.py",
line 4623, in _sync_power_states
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
vm_instance = self.driver.get_info(db_instance)
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
File
"/opt/rackstack/410.23/nova/lib/python2.6/site-packages/nova/virt/xenapi/driver.py",
line 318, in get_info
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
return self._vmops.get_info(instance)
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
File
"/opt/rackstack/410.23/nova/lib/python2.6/site-packages/nova/virt/xenapi/vmops.py",
line 1488, in get_info
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
vm_ref = vm_ref or self._get_vm_opaque_ref(instance)
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
File
"/opt/rackstack/410.23/nova/lib/python2.6/site-packages/nova/virt/xenapi/vmops.py",
line 800, in _get_vm_opaque_ref
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
instance['name'])
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
NotFound: Could not find VM with name
instance-00ab07fd-b5b0-44cb-8b62-9df838c7f468
2013-09-10 17:46:27.736 32525 TRACE nova.openstack.common.periodic_task
This is happening because the xenapi raises a NotFound exception but the
sync_power_states task is expecting an InstanceNotFound exception. NotFound
is a general exception and InstanceNotFound is a more specific one so it would
be better to raise InstanceNotFound and catch NotFound. But for this case it
should be ok to just raise InstanceNotFound.
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