John, your patch is in the mainline now. I have tested it. Not sure what is the
thing I am missing
I have specified cpu model none and even tried setting cpu mode custom also and
model kvm64.
I am getting below error on live migration.
error log
----
Remote error: libvirtError Requested operation is not valid: no CPU model
specified [u’Traceback (most recent call last):\n’, u’ File
“/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py”, line
142, in _dispatch_and_reply\n executo
Code
500
Details
File “/opt/stack/nova/nova/conductor/manager.py”, line 606, in _live_migrate
block_migration, disk_over_commit) File
“/opt/stack/nova/nova/conductor/tasks/live_migrate.py”, line 194, in execute
return task.execute() File
“/opt/stack/nova/nova/conductor/tasks/live_migrate.py”, line 62, in execute
self._check_requested_destination() File
“/opt/stack/nova/nova/conductor/tasks/live_migrate.py”, line 100, in
_check_requested_destination self._call_livem_checks_on_host(self.destination)
File “/opt/stack/nova/nova/conductor/tasks/live_migrate.py”, line 142, in
_call_livem_checks_on_host destination, self.block_migration,
self.disk_over_commit) File “/opt/stack/nova/nova/compute/rpcapi.py”, line 391,
in check_can_live_migrate_destination disk_over_commit=disk_over_commit) File
“/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/client.py”, line
156, in call retry=self.retry) File
“/usr/local/lib/python2.7/dist-packages/oslo_messaging/transport.py”, line 90,
in _send timeout=timeout, retry=retry) File
“/usr/local/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py”,
line 417, in send retry=retry) File
“/usr/local/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py”,
line 408, in _send raise result
Created
--------------------
debug log
---------------
DEBUG (shell:803) Live migration of instance
477e8963-aadf-4dc7-b26f-f6e9332dd33b to host celestial5 failed (HTTP 500)
(Request-ID: req-7973edbc-8844-41c5-926a-9f5e7cee62f2)
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/novaclient/shell.py", line 800,
in main
OpenStackComputeShell().main(argv)
File "/usr/local/lib/python2.7/dist-packages/novaclient/shell.py", line 730,
in main
args.func(self.cs, args)
File "/usr/local/lib/python2.7/dist-packages/novaclient/v1_1/shell.py", line
3001, in do_live_migration
args.disk_over_commit)
File "/usr/local/lib/python2.7/dist-packages/novaclient/v1_1/servers.py",
line 344, in live_migrate
disk_over_commit)
File "/usr/local/lib/python2.7/dist-packages/novaclient/v1_1/servers.py",
line 1124, in live_migrate
'disk_over_commit': disk_over_commit})
File "/usr/local/lib/python2.7/dist-packages/novaclient/v1_1/servers.py",
line 1240, in _action
return self.api.client.post(url, body=body)
File "/usr/local/lib/python2.7/dist-packages/novaclient/client.py", line 490,
in post
return self._cs_request(url, 'POST', **kwargs)
File "/usr/local/lib/python2.7/dist-packages/novaclient/client.py", line 465,
in _cs_request
resp, body = self._time_request(url, method, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/novaclient/client.py", line 439,
in _time_request
resp, body = self.request(url, method, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/novaclient/client.py", line 433,
in request
raise exceptions.from_response(resp, body, url, method)
ClientException: Live migration of instance
477e8963-aadf-4dc7-b26f-f6e9332dd33b to host celestial5 failed (HTTP 500)
(Request-ID: req-7973edbc-8844-41c5-926a-9f5e7cee62f2)
ERROR (ClientException): Live migration of instance
477e8963-aadf-4dc7-b26f-f6e9332dd33b to host celestial5 failed (HTTP 500)
(Request-ID: req-7973edbc-8844-41c5-926a-9f5e7cee62f2)
----------------------
Regards
Neelu
On Thursday, 26 February 2015 8:21 PM, John Griffith
<[email protected]> wrote:
On Thu, Feb 26, 2015 at 7:07 AM, somshekar kadam <[email protected]> wrote:
First of all thanks for quick reply.
Documentation does not mention much about Volume-backed live migration.
Is it tested, I mean supported and working.
I will try Block live migration as no storage is required.
Regards
Neelu
On Thursday, 26 February 2015 7:13 PM, Robert van Leeuwen
<[email protected]> wrote:
> Is the Live Migration of VMs even without shared storage supported in
> Openstack now.
> If yes is there any document for the same.
Wel, depends on what you call "supported".
Yes, it is possible.
Will it always work? Probably not until you look at the bugs below.
They have been fixed recently but they might not be merged with the version you
are running:
https://bugs.launchpad.net/nova/+bug/1270825
https://bugs.launchpad.net/nova/+bug/1082414
There might be more issues but I hit the ones mentioned above.
Have a look at the docs to configure it:
http://docs.openstack.org/admin-guide-cloud/content/section_configuring-compute-migrations.html
Cheers,
Robert van Leeuwen
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It's dated and getting the patches backported has proven to take forever, but I
did a write up and testing on this a while back [1]. Should still be accurate.
Thanks,John
[1]:
https://griffithscorner.wordpress.com/2014/12/08/openstack-live-migration-with-cinder-backed-instances/
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