You need to make sure that you ssh between machines using the nova user not root user.
Remo > On Mar 2, 2015, at 21:33, somshekar kadam <som_ka...@yahoo.co.in> wrote: > > Remo, > I did not understand, nova can not root ? > > DO I need to make user root ssh instead of a user ? > > > Regards > Neelu > > > On Monday, 2 March 2015 10:41 PM, Remo Mattei <r...@italy1.com> wrote: > > > Make sure nova can not root. > > Remo > > Inviato da iPhone () > > Il giorno 02/mar/2015, alle ore 08:21, somshekar kadam <som_ka...@yahoo.co.in > <mailto:som_ka...@yahoo.co.in>> ha scritto: > >> Hello John, >> Thanks for all your valuable inputs. >> I had missed these configuration. Hope these configs mentioned below will be >> useful for others who are trying out live migration. >> >> 1. force_config_drive = none , otherwise it was giving error. >> 2. allow_migrate_to_same_host = False >> allow_resize_to_same_host = False >> >> 3. set proper cpu mode as below >> cpu_mode = custom >> cpu_model = Nehalem >> virt_type = kvm >> >> Now I am able to make normal migration working fine, from one host to >> another. >> >> When I try with live migration with block-migration, its failing for not >> getting proper host key verification ,, >> I am looking into it. I have shared keys proper I am able to ssh to-fro host >> nodes using passwordless ssh. >> no clue right now. >> >> error log >> ------------------ >> [[01;31mLive Migration fa ilure: operation failed: Failed to connect >> to remote libvirt URI qemu+ssh://stack@celestial8/ >> system: Cannot recv data: Host key verifica tion failed.: Connection >> reset by peer^[[00m >> >> >> on thread notification^[[00m ^[[00;33mfrom (pid=8953) thread_finished >> /opt/stack/nova/nova/virt/ libvirt/driver.py:5638^[[00m >> 270370 Traceback (most recent call last): >> 270371 File "/usr/local/lib/python2.7/ dist-packages/eventlet/hubs/ >> hub.py", line 457, in fire_timers >> 270372 timer() >> 270373 File "/usr/local/lib/python2.7/ dist-packages/eventlet/hubs/ >> timer.py", line 58, in __call__ >> 270374 cb(*args, **kw) >> 270375 File "/usr/local/lib/python2.7/ dist-packages/eventlet/event. py", >> line 168, in _do_send >> 270376 waiter.switch(result) >> 270377 File "/usr/local/lib/python2.7/ dist-packages/eventlet/ >> greenthread.py", line 214, in main >> 270378 result = function(*args, **kwargs) >> 270379 File "/opt/stack/nova/nova/virt/ libvirt/driver.py", line 5435, in >> _live_migration_operation >> 270380 instance=instance) >> 270381 File "/usr/local/lib/python2.7/ dist-packages/oslo_utils/ >> excutils.py", line 82, in __exit__ >> 270382 six.reraise(self.type_, self.value, self.tb) >> 270383 File "/opt/stack/nova/nova/virt/ libvirt/driver.py", line 5404, in >> _live_migration_operation >> 270384 CONF.libvirt.live_migration_ bandwidth) >> 270385 File "/usr/local/lib/python2.7/ dist-packages/eventlet/tpool. py", >> line 183, in doit >> 270386 result = proxy_call(self._autowrap, f, *args, **kwargs) >> 270387 File "/usr/local/lib/python2.7/ dist-packages/eventlet/tpool. py", >> line 141, in proxy_call >> 270388 rv = execute(f, *args, **kwargs) >> 270389 File "/usr/local/lib/python2.7/ dist-packages/eventlet/tpool. py", >> line 122, in execute >> 270390 six.reraise(c, e, tb) >> 270391 File "/usr/local/lib/python2.7/ dist-packages/eventlet/tpool. py", >> line 80, in tworker >> 270392 rv = meth(*args, **kwargs) >> 270393 File "/usr/lib/python2.7/dist- packages/libvirt.py", line 1582, in >> migrateToURI2 >> 270394 if ret == -1: raise libvirtError ('virDomainMigrateToURI2() >> failed', dom=self) >> 270395 libvirtError: operation failed: Failed to connect to remote libvirt >> URI qemu+ssh://stack@celestial8/ system: Cannot recv data: Host key v >> erification failed.: Connection reset by peer >> @ >> ----- >> >> >> >> >> Regards >> Neelu >> >> >> On Friday, 27 February 2015 8:09 PM, somshekar kadam <som_ka...@yahoo.co.in >> <mailto:som_ka...@yahoo.co.in>> wrote: >> >> >> Have done the same configs as mentioned in above thread links for libvirt >> and nova.conf. >> >> >> Regards >> Neelu >> >> >> On Friday, 27 February 2015 8:07 PM, somshekar kadam <som_ka...@yahoo.co.in >> <mailto:som_ka...@yahoo.co.in>> wrote: >> >> >> 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 >> <john.griff...@solidfire.com <mailto:john.griff...@solidfire.com>> wrote: >> >> >> >> >> On Thu, Feb 26, 2015 at 7:07 AM, somshekar kadam <som_ka...@yahoo.co.in >> <mailto:som_ka...@yahoo.co.in>> 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 >> <robert.vanleeu...@spilgames.com <mailto:robert.vanleeu...@spilgames.com>> >> 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/1270825> >> https://bugs.launchpad.net/nova/+bug/1082414 >> <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 >> >> <http://docs.openstack.org/admin-guide-cloud/content/section_configuring-compute-migrations.html> >> >> Cheers, >> Robert van Leeuwen >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> _______________________________________________ >> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> <http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack> >> Post to : openstack@lists.openstack.org >> <mailto:openstack@lists.openstack.org> >> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> <http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack> >> >> >> 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/ >> >> <https://griffithscorner.wordpress.com/2014/12/08/openstack-live-migration-with-cinder-backed-instances/> >> >> >> >> >> >> _______________________________________________ >> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> <http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack> >> Post to : openstack@lists.openstack.org >> <mailto:openstack@lists.openstack.org> >> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> <http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack> >> >> >> !DSPAM:1,54f49242220001279316228! > > > !DSPAM:1,54f547dd139391777220169!
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