No current plans to fix this; use live migration not resize
** Changed in: nova
Status: Confirmed => Won't Fix
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https://bugs.launchpad.net/bugs/1201863
Title:
XenAPI Resize Fails with Migration Error: Failed to transfer vhd to
new host
Status in OpenStack Compute (nova):
Won't Fix
Bug description:
Setup:
OpenStack Grizzly and XCP on Debian Wheezy from the repositories (Kronos).
Shared storage based on NFS as the default SR configured for live migration.
When pressing the "More->Migrate Instance" on Horizon web interface, a
resize is initiated (Migrate here is misleading since it's basically
resize but this is another thing) which always fails with the
following errors:
2013-07-16 17:49:35.684 ERROR nova.compute.manager
[req-7a04e85c-0663-4772-bb5b-006516bde71f 8ca2f0ccd55f4d9ba53847755f2e0b18
10c16ce5ffb54c56925152b7d331a8d2] [instance:
93cb5f1a-5f63-4ac0-b7f4-77ee8e976484] Migration error: Failed to transfer vhd
to new host. Setting instance vm_state to ERROR
2013-07-16 17:49:41.862 ERROR nova.openstack.common.rpc.amqp
[req-7a04e85c-0663-4772-bb5b-006516bde71f 8ca2f0ccd55f4d9ba53847755f2e0b18
10c16ce5ffb54c56925152b7d331a8d2] Exception during message handling
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp Traceback
(most recent call last):
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/openstack/common/rpc/amqp.py", line 430,
in _process_data
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp rval =
self.proxy.dispatch(ctxt, version, method, **args)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/openstack/common/rpc/dispatcher.py",
line 133, in dispatch
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp return
getattr(proxyobj, method)(ctxt, **kwargs)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/exception.py", line 117, in wrapped
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp
temp_level, payload)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/contextlib.py", line 24, in __exit__
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp
self.gen.next()
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/exception.py", line 94, in wrapped
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp return
f(self, context, *args, **kw)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 209, in
decorated_function
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp pass
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/contextlib.py", line 24, in __exit__
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp
self.gen.next()
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 195, in
decorated_function
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp return
function(self, context, *args, **kwargs)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 260, in
decorated_function
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp
function(self, context, *args, **kwargs)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 237, in
decorated_function
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp e,
sys.exc_info())
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/contextlib.py", line 24, in __exit__
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp
self.gen.next()
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 224, in
decorated_function
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp return
function(self, context, *args, **kwargs)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 2373, in
resize_instance
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp
block_device_info)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/virt/xenapi/driver.py", line 243, in
migrate_disk_and_power_off
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp dest,
instance_type)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 905, in
migrate_disk_and_power_off
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp
context, instance, dest, vm_ref, sr_path)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 850, in
_migrate_disk_resizing_up
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp
self._migrate_vhd(instance, vdi_uuid, dest, sr_path, seq_num)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp File
"/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 765, in
_migrate_vhd
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp raise
exception.MigrationError(reason=msg)
2013-07-16 17:49:41.862 5363 TRACE nova.openstack.common.rpc.amqp
MigrationError: Migration error: Failed to transfer vhd to new host
Exactly the same happens when I try to resize an instance from the command
line (either up or down)
~# nova resize <image-id> m1.small --poll
Instance resizing... 40% complete
Error resizing instance
I assume it might be because of the shared storage?
Anyway it's a bug which puts the VM in ERROR state so it should be handled
properly.
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