It seems as though the plugin is waiting for a coalesce to happen after the snapshot - and timing out.
Could you confirm if the coalesce actually happened on the XenServer host, or if there were errors when attempting to coalesce? (probably from /var/log/SMlog) It might be worth checking the integrity of the SR by running an sr-scan on the storage repository in question and checking the output of /var/log/SMlog. Thanks, bob From: [email protected] [mailto:[email protected]] On Behalf Of Afef MDHAFFAR Sent: 12 March 2013 13:02 To: [email protected] Subject: [Openstack] Instance snapshotting error Hi all, I use openstack (folsom release) + XCP + ubuntu 12.04. I tried to create a snapshot of an ubuntu instance. Unfortunately, I get this error. Any ideas how to deal with this error? ----- 2013-03-12 12:54:02 AUDIT nova.compute.manager [req-39dc25ff-686d-46b8-98ac-29b3b08dbe94 admin demo] [instance: 945a44a0-2001-4165-a66c-a40ae552ab12] instance snapshotting 2013-03-12 12:54:36 ERROR nova.openstack.common.rpc.amqp [req-39dc25ff-686d-46b8-98ac-29b3b08dbe94 admin demo] Exception during message handling 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp Traceback (most recent call last): 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/openstack/common/rpc/amqp.py", line 393, in _process_data 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp rval = self.proxy.dispatch(ctxt, version, method, **args) 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/openstack/common/rpc/dispatcher.py", line 133, in dispatch 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp return getattr(proxyobj, method)(ctxt, **kwargs) 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/exception.py", line 117, in wrapped 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp temp_level, payload) 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__ 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp self.gen.next() 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/exception.py", line 94, in wrapped 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp return f(self, context, *args, **kw) 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 210, in decorated_function 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp pass 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__ 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp self.gen.next() 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 196, in decorated_function 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp return function(self, context, *args, **kwargs) 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 238, in decorated_function 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp e, sys.exc_info()) 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__ 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp self.gen.next() 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 225, in decorated_function 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp return function(self, context, *args, **kwargs) 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 1651, in snapshot_instance 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp self.driver.snapshot(context, instance, image_id, update_task_state) 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/virt/xenapi/driver.py", line 194, in snapshot 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp self._vmops.snapshot(context, instance, image_id, update_task_state) 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 712, in snapshot 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp update_task_state) as vdi_uuids: 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__ 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp return self.gen.next() 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 627, in snapshot_attached_here 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp original_parent_uuid) 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 1831, in _wait_for_vhd_coalesce 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp raise exception.NovaException(msg) 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp NovaException: VHD coalesce attempts exceeded (5), giving up... 2013-03-12 12:54:36 TRACE nova.openstack.common.rpc.amqp 2013-03-12 12:55:03 AUDIT nova.compute.resource_tracker [-] Auditing locally available compute resources ------- Thank you, Afef
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