Hi Eugen,

Thank you for your suggestions. I have tested, and the nova user is able to scp from one compute host to the other. I have also tested the migration without the local LVM ephemeral disc, and it is working in that case. The issue seems to appear when I'm trying to use local ephemeral disk managed by LVM (images_type=lvm). In this case my ephemeral disk is created on a local LVM volume that is part of the ssd_nova VG (images_volume_group = ssd_nova).

I could not see the source file that the nova is trying to copy, but this may have two reasons: 1. The file is not created 2. it's life is very short, and I cannot observe it.

The directory /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize doesn't exists while my instance is running. It appears for a short period of time (fraction of a second) while the migrate is trying to do its job, and then disappears again.

Kind regards, Laszlo

On 7/24/19 10:37 PM, Eugen Block wrote:

Hi,

is this the first migration test or have there already been some successful migrations? If it's the first I would suggest to check if the nova user can access the other node via ssh without password. Is /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 present on the source node? Can you run the 'scp' command manually as nova user?

Regards, Eugen

Zitat von Budai Laszlo laszlo.budai@gmail.com:

...

Dear all,

we are testing the cold migratoin of instances that are using local ephemeral storage and it fails with the following error:

2019-07-24 13:47:13.115 58902 INFO nova.virt.libvirt.driver [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7 - default default] [instance: 5a6dae 58-00d6-4317-b635-909fdf09ac49] Instance shutdown successfully after 3 seconds. 2019-07-24 13:47:13.126 58902 INFO nova.virt.libvirt.driver [-] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Instance destroyed successfully. 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7 - default default] [instance: 5a6dae58- 00d6-4317-b635-909fdf09ac49] Setting instance vm_state to ERROR: ProcessExecutionError: Unexpected error while running command. Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph

Exit code: 1 Stdout: u'' Stderr: u'------------------------------------------------------------------------------\n* WARNING                                                                    *\n* You are accessing a secured syst em and your actions will be logged along   *\n* with identifying information. Disconnect immediately if you are not an     *\n* authorized user of this system.                                            * \n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No suc h file or directory\n' 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Traceback (most recent call last): 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 75 18, in _error_out_instance_on_exception 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     yield 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 42 75, in _resize_instance 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     timeout, retry_interval) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", lin e 8200, in migrate_disk_and_power_off 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     shared_storage) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220 , in __exit__ 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     self.force_reraise() 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196 , in force_reraise 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", lin e 8185, in migrate_disk_and_power_off 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     compression=compression) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/utils.py", line  226, in copy_image 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     compression=compression) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs .py", line 110, in copy_file 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     compression=compression) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs .py", line 196, in copy_file 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     on_execute=on_execute, on_completion=on_completion) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/utils.py", line 231, in exec ute 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     return processutils.execute(*cmd, **kwargs) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_concurrency/processutils.py" , line 424, in execute 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     cmd=sanitized_cmd) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] ProcessExecutionError: Unexpected error while running command. 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Exit code: 1 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Stdout: u'' 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Stderr: u'------------------------------------------------------------------------------\n* WARNING                                                                    *\n* You are accessing a secured system and your actions will be logged along   *\n* with identifying information. Disconnect immediately if you are not an     *\n* authorized user of this system.                                            *\n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No such file or directory\n' 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] 2019-07-24 13:47:14.380 58902 INFO nova.compute.manager [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7 - default default] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Swapping old allocation on 3da11b23-5ef8-4471-a3c9-5f743b0bbfd7 held by migration da66c416-2636-421b-99cb-470bd07dad4c for instance 2019-07-24 13:47:14.979 58902 INFO nova.compute.manager [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7 - default default] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Successfully reverted task state from resize_migrating on failure for instance. 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7 - default default] Exception during message handling: ProcessExecutionError: Unexpected error while running command. Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 Exit code: 1 Stdout: u'' Stderr: u'------------------------------------------------------------------------------\n* WARNING                                                                    *\n* You are accessing a secured system and your actions will be logged along   *\n* with identifying information. Disconnect immediately if you are not an     *\n* authorized user of this system.                                            *\n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No such file or directory\n' 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Traceback (most recent call last): 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 163, in _process_incoming 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 220, in dispatch 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 190, in _do_dispatch 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/exception_wrapper.py", line 76, in wrapped 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     function_name, call_dict, binary) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/exception_wrapper.py", line 67, in wrapped 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return f(self, context, *args, **kw) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 186, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     "Error: %s", e, instance=instance) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 156, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/utils.py", line 977, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 214, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     kwargs['instance'], e, sys.exc_info()) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 202, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 4240, in resize_instance 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self._revert_allocation(context, instance, migration) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 4237, in resize_instance 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     instance_type, clean_shutdown) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 4275, in _resize_instance 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     timeout, retry_interval) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 8200, in migrate_disk_and_power_off 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     shared_storage) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 8185, in migrate_disk_and_power_off 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     compression=compression) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/utils.py", line 226, in copy_image 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     compression=compression) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs.py", line 110, in copy_file 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     compression=compression) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs.py", line 196, in copy_file 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     on_execute=on_execute, on_completion=on_completion) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/utils.py", line 231, in execute 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return processutils.execute(*cmd, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_concurrency/processutils.py", line 424, in execute 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     cmd=sanitized_cmd) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server ProcessExecutionError: Unexpected error while running command. 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Exit code: 1 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Stdout: u'' 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Stderr: u'------------------------------------------------------------------------------\n* WARNING                                                                    *\n* You are accessing a secured system and your actions will be logged along   *\n* with identifying information. Disconnect immediately if you are not an     *\n* authorized user of this system.                                            *\n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No such file or directory\n' 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server 2019-07-24 13:47:17.065 58902 INFO nova.virt.libvirt.imagecache [req-e73474d0-6857-4c52-9c93-73f3bae247b5 - - - - -] image ca89475a-cf15-46d1-ab2d-c2b96c403248 at (/var/lib/nova/instances/_base/ab9f9dd0888a4950702b9c993c82f7ab36a3ed07): checking 2019-07-24 13:47:17.066 58902 INFO nova.virt.libvirt.imagecache [req-e73474d0-6857-4c52-9c93-73f3bae247b5 - - - - -] Active base files: /var/lib/nova/instances/_base/ab9f9dd0888a4950702b9c993c82f7ab36a3ed07 2019-07-24 13:47:27.768 58902 INFO nova.compute.manager [-] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] VM Stopped (Lifecycle Event) 2019-07-24 13:47:27.918 58902 INFO nova.compute.manager [req-e53e928d-81fe-4185-9e62-abc2113e838c - - - - -] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] During _sync_instance_power_state the DB power_state (1) does not match the vm_power_state from the hypervisor (4). Updating power_state in the DB to match the hypervisor.

The disk has its root FS n an RBD device (a volume created by cinder) and it has its ephemeral disk on a local LVM volume created by nova.

It seems that the /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 is not there when scp is trying to copy it to the other side.

Any ideas how to fix this?

The nova config on the nodes looks like this:

# Ansible managed [DEFAULT] allow_resize_to_same_host = True # Compute compute_driver = libvirt.LibvirtDriver # Scheduler cpu_allocation_ratio = 2.0 # Logs / State debug = False # Hypervisor default_ephemeral_format = ext4 disk_allocation_ratio = 1.0 # Api's enabled_apis = osapi_compute,metadata executor_thread_pool_size = 64 fatal_deprecations = False # Configdrive force_config_drive = False host = compute8.mgmt.lab.mydomain.com image_cache_manager_interval = 0 instance_name_template = instance-%08x # Ceilometer notification configurations instance_usage_audit = True instance_usage_audit_period = hour instances_path = /var/lib/nova/instances ## Vif libvirt_vif_type = ethernet log_dir = /var/log/nova # Metadata metadata_workers = 16 # Network my_ip = 192.168.56.47 notify_on_state_change = vm_and_task_state osapi_compute_workers = 16 ram_allocation_ratio = 1.0 reserved_host_disk_mb = 0 reserved_host_memory_mb = 2048 resume_guests_state_on_host_boot = False rootwrap_config = /etc/nova/rootwrap.conf rpc_response_timeout = 60 service_down_time = 120 state_path = /var/lib/nova # Rpc all transport_url = rabbit://nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.194:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.209:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e 8cf8bd7@192.168.56.179:5671//nova # Disable stderr logging use_stderr = False vif_plugging_is_fatal = True vif_plugging_timeout = 30

[api] auth_strategy = keystone enable_instance_password = True use_forwarded_for = False vendordata_jsonfile_path = /etc/nova/vendor_data.json

# Cache [cache] backend = oslo_cache.memcache_pool enabled = true memcache_servers = 192.168.56.68:11211,192.168.56.85:11211,192.168.56.170:11211

# Cinder [cinder] cafile = /etc/ssl/certs/ca-certificates.crt catalog_info = volumev3:cinderv3:internalURL cross_az_attach = True os_region_name = A_Lab

[conductor] workers = 16

[filter_scheduler] available_filters = nova.scheduler.filters.all_filters enabled_filters = RetryFilter, AvailabilityZoneFilter, RamFilter, AggregateRamFilter, ComputeFilter, AggregateCoreFilter, DiskFilter, AggregateDiskFilter, AggregateNumInstancesFilter, AggregateIoOpsFilter, ComputeCapabilitiesFilter, ImagePropertiesFilter, ServerGroupAntiAffinityFilter, ServerGroupAffinityFilter, NUMATopologyFilter, SameHostFilter, DifferentHostFilter host_subset_size = 10 max_instances_per_host = 50 max_io_ops_per_host = 10 ram_weight_multiplier = 5.0 tracks_instance_changes = True weight_classes = nova.scheduler.weights.all_weighers

# Glance [glance] api_servers = https://vip.mgmt.lab.mydomain.com:9292 cafile = /etc/ssl/certs/ca-certificates.crt

[key_manager] fixed_key = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

[keystone_authtoken] auth_type = password auth_uri = https://vip.mgmt.lab.mydomain.com:5000 auth_url = https://vip.mgmt.lab.mydomain.com:35357 cafile = /etc/ssl/certs/ca-certificates.crt insecure = False memcache_secret_key = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx # if your memcached server is shared, use these settings to avoid cache poisoning memcache_security_strategy = ENCRYPT memcached_servers = 192.168.56.68:11211,192.168.56.85:11211,192.168.56.170:11211 password = xxxxxxxxxxxxxxxxxxxxxxx

project_domain_id = default project_name = service region_name = A_Lab token_cache_time = 300 user_domain_id = default username = nova

[libvirt] disk_cachemodes = network=writeback hw_disk_discard = unmap images_rbd_ceph_conf = /etc/ceph/ceph.conf images_rbd_pool = vms images_type = lvm images_volume_group = ssd_nova inject_key = False inject_partition = -2 inject_password = False live_migration_tunnelled = True live_migration_uri = "qemu+ssh://nova@%s/system?no_verify=1&keyfile=/var/lib/nova/.ssh/id_rsa" rbd_secret_uuid = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx # ceph rbd support rbd_user = cinder remove_unused_resized_minimum_age_seconds = 3600 use_virtio_for_bridges = True virt_type = kvm

# Neutron [neutron] auth_type = password # Keystone client plugin authentication URL option auth_url = https://vip.mgmt.lab.mydomain.com:35357/v3 cafile = /etc/ssl/certs/ca-certificates.crt default_floating_pool = public insecure = False metadata_proxy_shared_secret = xxxxxxxxxxxxxxxxxxxxxxxxxxxx # Keystone client plugin password option password = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx project_domain_name = Default project_name = service region_name = A_Lab service_metadata_proxy = True url = https://vip.mgmt.lab.mydomain.com:9696 user_domain_name = Default # Keystone client plugin username option username = neutron

[oslo_concurrency] lock_path = /var/lock/nova # Notifications [oslo_messaging_notifications] driver = messagingv2 notification_topics = notifications transport_url = rabbit://nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.194:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.209:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.179:5671//nova

[oslo_messaging_rabbit] rpc_conn_pool_size = 30 ssl = True

# Placement [placement] auth_type = "password" auth_url = https://vip.mgmt.lab.mydomain.com:35357/v3 cafile = /etc/ssl/certs/ca-certificates.crt insecure = False os_interface = internal os_region_name = A_Lab password = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx project_domain_name = Default project_name = service user_domain_name = Default username = placement

[quota] cores = 20 injected_file_content_bytes = 10240 injected_file_path_length = 255 injected_files = 5 instances = 10 key_pairs = 100 max_age = 0 metadata_items = 128 ram = 32768 server_group_members = 10 server_groups = 10

[scheduler] discover_hosts_in_cells_interval = 60 host_manager = host_manager max_attempts = 5 periodic_task_interval = 60 scheduler_driver = filter_scheduler

[spice] agent_enabled = True enabled = True # Console Url and binds html5proxy_base_url = https://dashboard.iaas.lab.mydomain.com:6080/spice_auto.html server_listen = 192.168.56.47 server_proxyclient_address = 192.168.56.47

[upgrade_levels] compute = auto

[vnc] enabled = False

[wsgi] api_paste_config = /etc/nova/api-paste.ini secure_proxy_ssl_header = HTTP_X_FORWARDED_PROTO

Thank you in advance for any suggestions.

Kind regards, Laszlo

Sure. The goal is to be able to build instances that will have access to a locally provisioned storage (we have SSDs added to the compute nodes) for the application data. Indeed in the config we have these 2 entries: `images_rbd_ceph_conf = /etc/ceph/ceph.conf`, and `images_rbd_pool = vms`, but in these paricular hosts we are not using RBD (the hosts without SSDs will use it) hence the `images_type = lvm` setting. The instance creation works as we want. When we boot the image we are creating a volume for the root fs (that is created by cinder, and it is RBD) and we will have a locally provisioned ephemeral disk (vdb) which is created by nova in the ssd_nova VG (images_volume_group = ssd_nova).

So, now we are testing whether we can migrate or not these instances. And that's when we ran into the mentioned trouble... :(

I hope it is more clear now.

Kind regards, Laszlo

On 7/25/19 10:54 AM, Eugen Block wrote:

I'm not sure if I get this right, according to your config output you already use ceph as storage backend (which already provides ephemeral disk if configured to do so) but you also want to configure lvm? Can you explain what your goal is here?

Zitat von Budai Laszlo laszlo.budai@gmail.com:

...

Hi Eugen,

Thank you for your suggestions. I have tested, and the nova user is able to scp from one compute host to the other. I have also tested the migration without the local LVM ephemeral disc, and it is working in that case. The issue seems to appear when I'm trying to use local ephemeral disk managed by LVM (images_type=lvm). In this case my ephemeral disk is created on a local LVM volume that is part of the ssd_nova VG (images_volume_group = ssd_nova).

I could not see the source file that the nova is trying to copy, but this may have two reasons:

1. The file is not created
2. it's life is very short, and I cannot observe it.

The directory /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize doesn't exists while my instance is running. It appears for a short period of time (fraction of a second) while the migrate is trying to do its job, and then disappears again.

Kind regards, Laszlo

On 7/24/19 10:37 PM, Eugen Block wrote:

...

Hi,

is this the first migration test or have there already been some successful migrations? If it's the first I would suggest to check if the nova user can access the other node via ssh without password. Is /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 present on the source node? Can you run the 'scp' command manually as nova user?

Regards, Eugen

Zitat von Budai Laszlo laszlo.budai@gmail.com:

...

Dear all,

we are testing the cold migratoin of instances that are using local ephemeral storage and it fails with the following error:

2019-07-24 13:47:13.115 58902 INFO nova.virt.libvirt.driver [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7 - default default] [instance: 5a6dae 58-00d6-4317-b635-909fdf09ac49] Instance shutdown successfully after 3 seconds. 2019-07-24 13:47:13.126 58902 INFO nova.virt.libvirt.driver [-] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Instance destroyed successfully. 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7 - default default] [instance: 5a6dae58- 00d6-4317-b635-909fdf09ac49] Setting instance vm_state to ERROR: ProcessExecutionError: Unexpected error while running command. Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph

Exit code: 1 Stdout: u'' Stderr: u'------------------------------------------------------------------------------\n* WARNING                                                                    *\n* You are accessing a secured syst em and your actions will be logged along   *\n* with identifying information. Disconnect immediately if you are not an     *\n* authorized user of this system.                                            * \n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No suc h file or directory\n' 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Traceback (most recent call last): 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 75 18, in _error_out_instance_on_exception 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     yield 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 42 75, in _resize_instance 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     timeout, retry_interval) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", lin e 8200, in migrate_disk_and_power_off 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     shared_storage) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220 , in __exit__ 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     self.force_reraise() 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196 , in force_reraise 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", lin e 8185, in migrate_disk_and_power_off 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     compression=compression) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/utils.py", line  226, in copy_image 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     compression=compression) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs .py", line 110, in copy_file 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     compression=compression) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs .py", line 196, in copy_file 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     on_execute=on_execute, on_completion=on_completion) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/utils.py", line 231, in exec ute 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     return processutils.execute(*cmd, **kwargs) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_concurrency/processutils.py" , line 424, in execute 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49]     cmd=sanitized_cmd) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] ProcessExecutionError: Unexpected error while running command. 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Exit code: 1 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Stdout: u'' 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Stderr: u'------------------------------------------------------------------------------\n* WARNING                                                                    *\n* You are accessing a secured system and your actions will be logged along   *\n* with identifying information. Disconnect immediately if you are not an     *\n* authorized user of this system.                                            *\n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No such file or directory\n' 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] 2019-07-24 13:47:14.380 58902 INFO nova.compute.manager [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7 - default default] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Swapping old allocation on 3da11b23-5ef8-4471-a3c9-5f743b0bbfd7 held by migration da66c416-2636-421b-99cb-470bd07dad4c for instance 2019-07-24 13:47:14.979 58902 INFO nova.compute.manager [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7 - default default] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Successfully reverted task state from resize_migrating on failure for instance. 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7 - default default] Exception during message handling: ProcessExecutionError: Unexpected error while running command. Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 Exit code: 1 Stdout: u'' Stderr: u'------------------------------------------------------------------------------\n* WARNING                                                                    *\n* You are accessing a secured system and your actions will be logged along   *\n* with identifying information. Disconnect immediately if you are not an     *\n* authorized user of this system.                                            *\n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No such file or directory\n' 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Traceback (most recent call last): 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 163, in _process_incoming 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 220, in dispatch 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 190, in _do_dispatch 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/exception_wrapper.py", line 76, in wrapped 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     function_name, call_dict, binary) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/exception_wrapper.py", line 67, in wrapped 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return f(self, context, *args, **kw) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 186, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     "Error: %s", e, instance=instance) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 156, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/utils.py", line 977, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 214, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     kwargs['instance'], e, sys.exc_info()) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 202, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 4240, in resize_instance 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self._revert_allocation(context, instance, migration) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 4237, in resize_instance 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     instance_type, clean_shutdown) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 4275, in _resize_instance 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     timeout, retry_interval) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 8200, in migrate_disk_and_power_off 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     shared_storage) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 8185, in migrate_disk_and_power_off 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     compression=compression) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/utils.py", line 226, in copy_image 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     compression=compression) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs.py", line 110, in copy_file 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     compression=compression) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs.py", line 196, in copy_file 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     on_execute=on_execute, on_completion=on_completion) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/utils.py", line 231, in execute 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     return processutils.execute(*cmd, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_concurrency/processutils.py", line 424, in execute 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server     cmd=sanitized_cmd) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server ProcessExecutionError: Unexpected error while running command. 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Exit code: 1 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Stdout: u'' 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Stderr: u'------------------------------------------------------------------------------\n* WARNING                                                                    *\n* You are accessing a secured system and your actions will be logged along   *\n* with identifying information. Disconnect immediately if you are not an     *\n* authorized user of this system.                                            *\n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No such file or directory\n' 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server 2019-07-24 13:47:17.065 58902 INFO nova.virt.libvirt.imagecache [req-e73474d0-6857-4c52-9c93-73f3bae247b5 - - - - -] image ca89475a-cf15-46d1-ab2d-c2b96c403248 at (/var/lib/nova/instances/_base/ab9f9dd0888a4950702b9c993c82f7ab36a3ed07): checking 2019-07-24 13:47:17.066 58902 INFO nova.virt.libvirt.imagecache [req-e73474d0-6857-4c52-9c93-73f3bae247b5 - - - - -] Active base files: /var/lib/nova/instances/_base/ab9f9dd0888a4950702b9c993c82f7ab36a3ed07 2019-07-24 13:47:27.768 58902 INFO nova.compute.manager [-] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] VM Stopped (Lifecycle Event) 2019-07-24 13:47:27.918 58902 INFO nova.compute.manager [req-e53e928d-81fe-4185-9e62-abc2113e838c - - - - -] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] During _sync_instance_power_state the DB power_state (1) does not match the vm_power_state from the hypervisor (4). Updating power_state in the DB to match the hypervisor.

The disk has its root FS n an RBD device (a volume created by cinder) and it has its ephemeral disk on a local LVM volume created by nova.

It seems that the /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 is not there when scp is trying to copy it to the other side.

Any ideas how to fix this?

The nova config on the nodes looks like this:

# Ansible managed [DEFAULT] allow_resize_to_same_host = True # Compute compute_driver = libvirt.LibvirtDriver # Scheduler cpu_allocation_ratio = 2.0 # Logs / State debug = False # Hypervisor default_ephemeral_format = ext4 disk_allocation_ratio = 1.0 # Api's enabled_apis = osapi_compute,metadata executor_thread_pool_size = 64 fatal_deprecations = False # Configdrive force_config_drive = False host = compute8.mgmt.lab.mydomain.com image_cache_manager_interval = 0 instance_name_template = instance-%08x # Ceilometer notification configurations instance_usage_audit = True instance_usage_audit_period = hour instances_path = /var/lib/nova/instances ## Vif libvirt_vif_type = ethernet log_dir = /var/log/nova # Metadata metadata_workers = 16 # Network my_ip = 192.168.56.47 notify_on_state_change = vm_and_task_state osapi_compute_workers = 16 ram_allocation_ratio = 1.0 reserved_host_disk_mb = 0 reserved_host_memory_mb = 2048 resume_guests_state_on_host_boot = False rootwrap_config = /etc/nova/rootwrap.conf rpc_response_timeout = 60 service_down_time = 120 state_path = /var/lib/nova # Rpc all transport_url = rabbit://nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.194:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.209:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e 8cf8bd7@192.168.56.179:5671//nova # Disable stderr logging use_stderr = False vif_plugging_is_fatal = True vif_plugging_timeout = 30

[api] auth_strategy = keystone enable_instance_password = True use_forwarded_for = False vendordata_jsonfile_path = /etc/nova/vendor_data.json

# Cache [cache] backend = oslo_cache.memcache_pool enabled = true memcache_servers = 192.168.56.68:11211,192.168.56.85:11211,192.168.56.170:11211

# Cinder [cinder] cafile = /etc/ssl/certs/ca-certificates.crt catalog_info = volumev3:cinderv3:internalURL cross_az_attach = True os_region_name = A_Lab

[conductor] workers = 16

[filter_scheduler] available_filters = nova.scheduler.filters.all_filters enabled_filters = RetryFilter, AvailabilityZoneFilter, RamFilter, AggregateRamFilter, ComputeFilter, AggregateCoreFilter, DiskFilter, AggregateDiskFilter, AggregateNumInstancesFilter, AggregateIoOpsFilter, ComputeCapabilitiesFilter, ImagePropertiesFilter, ServerGroupAntiAffinityFilter, ServerGroupAffinityFilter, NUMATopologyFilter, SameHostFilter, DifferentHostFilter host_subset_size = 10 max_instances_per_host = 50 max_io_ops_per_host = 10 ram_weight_multiplier = 5.0 tracks_instance_changes = True weight_classes = nova.scheduler.weights.all_weighers

# Glance [glance] api_servers = https://vip.mgmt.lab.mydomain.com:9292 cafile = /etc/ssl/certs/ca-certificates.crt

[key_manager] fixed_key = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

[keystone_authtoken] auth_type = password auth_uri = https://vip.mgmt.lab.mydomain.com:5000 auth_url = https://vip.mgmt.lab.mydomain.com:35357 cafile = /etc/ssl/certs/ca-certificates.crt insecure = False memcache_secret_key = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx # if your memcached server is shared, use these settings to avoid cache poisoning memcache_security_strategy = ENCRYPT memcached_servers = 192.168.56.68:11211,192.168.56.85:11211,192.168.56.170:11211 password = xxxxxxxxxxxxxxxxxxxxxxx

project_domain_id = default project_name = service region_name = A_Lab token_cache_time = 300 user_domain_id = default username = nova

[libvirt] disk_cachemodes = network=writeback hw_disk_discard = unmap images_rbd_ceph_conf = /etc/ceph/ceph.conf images_rbd_pool = vms images_type = lvm images_volume_group = ssd_nova inject_key = False inject_partition = -2 inject_password = False live_migration_tunnelled = True live_migration_uri = "qemu+ssh://nova@%s/system?no_verify=1&keyfile=/var/lib/nova/.ssh/id_rsa" rbd_secret_uuid = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx # ceph rbd support rbd_user = cinder remove_unused_resized_minimum_age_seconds = 3600 use_virtio_for_bridges = True virt_type = kvm

# Neutron [neutron] auth_type = password # Keystone client plugin authentication URL option auth_url = https://vip.mgmt.lab.mydomain.com:35357/v3 cafile = /etc/ssl/certs/ca-certificates.crt default_floating_pool = public insecure = False metadata_proxy_shared_secret = xxxxxxxxxxxxxxxxxxxxxxxxxxxx # Keystone client plugin password option password = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx project_domain_name = Default project_name = service region_name = A_Lab service_metadata_proxy = True url = https://vip.mgmt.lab.mydomain.com:9696 user_domain_name = Default # Keystone client plugin username option username = neutron

[oslo_concurrency] lock_path = /var/lock/nova # Notifications [oslo_messaging_notifications] driver = messagingv2 notification_topics = notifications transport_url = rabbit://nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.194:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.209:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.179:5671//nova

[oslo_messaging_rabbit] rpc_conn_pool_size = 30 ssl = True

# Placement [placement] auth_type = "password" auth_url = https://vip.mgmt.lab.mydomain.com:35357/v3 cafile = /etc/ssl/certs/ca-certificates.crt insecure = False os_interface = internal os_region_name = A_Lab password = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx project_domain_name = Default project_name = service user_domain_name = Default username = placement

[quota] cores = 20 injected_file_content_bytes = 10240 injected_file_path_length = 255 injected_files = 5 instances = 10 key_pairs = 100 max_age = 0 metadata_items = 128 ram = 32768 server_group_members = 10 server_groups = 10

[scheduler] discover_hosts_in_cells_interval = 60 host_manager = host_manager max_attempts = 5 periodic_task_interval = 60 scheduler_driver = filter_scheduler

[spice] agent_enabled = True enabled = True # Console Url and binds html5proxy_base_url = https://dashboard.iaas.lab.mydomain.com:6080/spice_auto.html server_listen = 192.168.56.47 server_proxyclient_address = 192.168.56.47

[upgrade_levels] compute = auto

[vnc] enabled = False

[wsgi] api_paste_config = /etc/nova/api-paste.ini secure_proxy_ssl_header = HTTP_X_FORWARDED_PROTO

Thank you in advance for any suggestions.

Kind regards, Laszlo

Hi Matt,

Thank you for the info. This is really important. I got one error at live migration which was saying that Live migration with local volumes is not working, but the cold migration it was trying to scp, so I was assuming that it is supposed to work ...

Can you please clarify one more thing: how is the resize involved in this cold migration. Apparently it is trying to resize before it would copy the files. Is there any document that describes the steps of the migration?

Kind regards, Laszlo

On 7/25/19 2:53 PM, Matt Riedemann wrote:

On 7/25/2019 4:39 AM, Budai Laszlo wrote:

...

So, now we are testing whether we can migrate or not these instances. And that's when we ran into the mentioned trouble...:(

Migration with local lvm-backed instances doesn't work, it's a long-standing known issue.

https://bugs.launchpad.net/nova/+bug/1831657

https://review.opendev.org/#/c/337334/

I don't think we have a reference doc on the low-level resize / cold migration flow like we have for live migration [1] (we should add one though, I could probably sketch it out pretty quickly if someone can throw it into the docs).

You know the drill: - napkin sketch - seqdiag - two years elapse - shiny nickel

efried .

Is it possible to configure the environment, what did the migrated server do before migration? And the migration log is given? Or submit a bug on the launchpad, explaining the version of the problem, the recurring steps, and so on.

Above, in order to convenient and clearer analysis of problems.

________________________________ 发件人：Eugen Block eblock@nde.ag 时间：2019年07月25日 下午 4:06 收件人：openstack-discuss@lists.openstack.org 主题：[lists.openstack.org代发]Re: [Nova] migration issue

I'm not sure if I get this right, according to your config output you already use ceph as storage backend (which already provides ephemeral disk if configured to do so) but you also want to configure lvm? Can you explain what your goal is here?

Zitat von Budai Laszlo laszlo.budai@gmail.com:

Hi Eugen,

Thank you for your suggestions. I have tested, and the nova user is able to scp from one compute host to the other. I have also tested the migration without the local LVM ephemeral disc, and it is working in that case. The issue seems to appear when I'm trying to use local ephemeral disk managed by LVM (images_type=lvm). In this case my ephemeral disk is created on a local LVM volume that is part of the ssd_nova VG (images_volume_group = ssd_nova).

I could not see the source file that the nova is trying to copy, but this may have two reasons:

1. The file is not created
2. it's life is very short, and I cannot observe it.

The directory /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize doesn't exists while my instance is running. It appears for a short period of time (fraction of a second) while the migrate is trying to do its job, and then disappears again.

Kind regards, Laszlo

On 7/24/19 10:37 PM, Eugen Block wrote:

...

Hi,

is this the first migration test or have there already been some successful migrations? If it's the first I would suggest to check if the nova user can access the other node via ssh without password. Is /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 present on the source node? Can you run the 'scp' command manually as nova user?

Regards, Eugen

Zitat von Budai Laszlo laszlo.budai@gmail.com:

...

Dear all,

we are testing the cold migratoin of instances that are using local ephemeral storage and it fails with the following error:

2019-07-24 13:47:13.115 58902 INFO nova.virt.libvirt.driver [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7

• default default] [instance: 5a6dae

58-00d6-4317-b635-909fdf09ac49] Instance shutdown successfully after 3 seconds. 2019-07-24 13:47:13.126 58902 INFO nova.virt.libvirt.driver [-] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Instance destroyed successfully. 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7

• default default] [instance: 5a6dae58-

00d6-4317-b635-909fdf09ac49] Setting instance vm_state to ERROR: ProcessExecutionError: Unexpected error while running command. Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph

Exit code: 1 Stdout: u'' Stderr: u'------------------------------------------------------------------------------\n* WARNING *\n* You are accessing a secured syst em and your actions will be logged along *\n* with identifying information. Disconnect immediately if you are not an *\n* authorized user of this system. * \n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No suc h file or directory\n' 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Traceback (most recent call last): 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 75 18, in _error_out_instance_on_exception 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] yield 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 42 75, in _resize_instance 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] timeout, retry_interval) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", lin e 8200, in migrate_disk_and_power_off 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] shared_storage) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220 , in __exit__ 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] self.force_reraise() 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196 , in force_reraise 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", lin e 8185, in migrate_disk_and_power_off 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] compression=compression) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/utils.py", line 226, in copy_image 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] compression=compression) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs .py", line 110, in copy_file 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] compression=compression) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs .py", line 196, in copy_file 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] on_execute=on_execute, on_completion=on_completion) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/utils.py", line 231, in exec ute 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] return processutils.execute(*cmd, **kwargs) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_concurrency/processutils.py" , line 424, in execute 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] cmd=sanitized_cmd) 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] ProcessExecutionError: Unexpected error while running command. 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Exit code: 1 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Stdout: u'' 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] Stderr: u'------------------------------------------------------------------------------\n* WARNING *\n* You are accessing a secured system and your actions will be logged along *\n* with identifying information. Disconnect immediately if you are not an *\n* authorized user of this system. *\n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No such file or directory\n' 2019-07-24 13:47:14.008 58902 ERROR nova.compute.manager [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] 2019-07-24 13:47:14.380 58902 INFO nova.compute.manager [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7

• default default] [instance:

5a6dae58-00d6-4317-b635-909fdf09ac49] Swapping old allocation on 3da11b23-5ef8-4471-a3c9-5f743b0bbfd7 held by migration da66c416-2636-421b-99cb-470bd07dad4c for instance 2019-07-24 13:47:14.979 58902 INFO nova.compute.manager [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7

• default default] [instance:

5a6dae58-00d6-4317-b635-909fdf09ac49] Successfully reverted task state from resize_migrating on failure for instance. 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server [req-356fce31-5e98-425f-89d6-8a98664d31ad 122b0950c0cc47bdbb78e63724d65105 f713e44c723e491aa67352e12f83e0d7

• default default] Exception during message handling:

ProcessExecutionError: Unexpected error while running command. Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 Exit code: 1 Stdout: u'' Stderr: u'------------------------------------------------------------------------------\n* WARNING *\n* You are accessing a secured system and your actions will be logged along *\n* with identifying information. Disconnect immediately if you are not an *\n* authorized user of this system. *\n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No such file or directory\n' 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Traceback (most recent call last): 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 163, in _process_incoming 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server res = self.dispatcher.dispatch(message) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 220, in dispatch 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server return self._do_dispatch(endpoint, method, ctxt, args) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 190, in _do_dispatch 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server result = func(ctxt, **new_args) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/exception_wrapper.py", line 76, in wrapped 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server function_name, call_dict, binary) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/exception_wrapper.py", line 67, in wrapped 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server return f(self, context, *args, **kw) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 186, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server "Error: %s", e, instance=instance) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 156, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server return function(self, context, *args, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/utils.py", line 977, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server return function(self, context, *args, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 214, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server kwargs['instance'], e, sys.exc_info()) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 202, in decorated_function 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server return function(self, context, *args, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 4240, in resize_instance 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server self._revert_allocation(context, instance, migration) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 4237, in resize_instance 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server instance_type, clean_shutdown) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/compute/manager.py", line 4275, in _resize_instance 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server timeout, retry_interval) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 8200, in migrate_disk_and_power_off 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server shared_storage) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__ 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server self.force_reraise() 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 8185, in migrate_disk_and_power_off 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server compression=compression) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/utils.py", line 226, in copy_image 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server compression=compression) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs.py", line 110, in copy_file 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server compression=compression) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/virt/libvirt/volume/remotefs.py", line 196, in copy_file 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server on_execute=on_execute, on_completion=on_completion) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/nova/utils.py", line 231, in execute 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server return processutils.execute(*cmd, **kwargs) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server File "/openstack/venvs/nova-17.1.3/lib/python2.7/site-packages/oslo_concurrency/processutils.py", line 424, in execute 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server cmd=sanitized_cmd) 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server ProcessExecutionError: Unexpected error while running command. 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Command: scp -r /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 192.168.56.46:/dev/ssd_nova/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Exit code: 1 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Stdout: u'' 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server Stderr: u'------------------------------------------------------------------------------\n* WARNING *\n* You are accessing a secured system and your actions will be logged along *\n* with identifying information. Disconnect immediately if you are not an *\n* authorized user of this system. *\n------------------------------------------------------------------------------\n/var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0: No such file or directory\n' 2019-07-24 13:47:15.000 58902 ERROR oslo_messaging.rpc.server 2019-07-24 13:47:17.065 58902 INFO nova.virt.libvirt.imagecache [req-e73474d0-6857-4c52-9c93-73f3bae247b5 - - - - -] image ca89475a-cf15-46d1-ab2d-c2b96c403248 at (/var/lib/nova/instances/_base/ab9f9dd0888a4950702b9c993c82f7ab36a3ed07): checking 2019-07-24 13:47:17.066 58902 INFO nova.virt.libvirt.imagecache [req-e73474d0-6857-4c52-9c93-73f3bae247b5 - - - - -] Active base files: /var/lib/nova/instances/_base/ab9f9dd0888a4950702b9c993c82f7ab36a3ed07 2019-07-24 13:47:27.768 58902 INFO nova.compute.manager [-] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] VM Stopped (Lifecycle Event) 2019-07-24 13:47:27.918 58902 INFO nova.compute.manager [req-e53e928d-81fe-4185-9e62-abc2113e838c - - - - -] [instance: 5a6dae58-00d6-4317-b635-909fdf09ac49] During _sync_instance_power_state the DB power_state (1) does not match the vm_power_state from the hypervisor (4). Updating power_state in the DB to match the hypervisor.

The disk has its root FS n an RBD device (a volume created by cinder) and it has its ephemeral disk on a local LVM volume created by nova.

It seems that the /var/lib/nova/instances/5a6dae58-00d6-4317-b635-909fdf09ac49_resize/5a6dae58-00d6-4317-b635-909fdf09ac49_disk.eph0 is not there when scp is trying to copy it to the other side.

Any ideas how to fix this?

The nova config on the nodes looks like this:

# Ansible managed [DEFAULT] allow_resize_to_same_host = True # Compute compute_driver = libvirt.LibvirtDriver # Scheduler cpu_allocation_ratio = 2.0 # Logs / State debug = False # Hypervisor default_ephemeral_format = ext4 disk_allocation_ratio = 1.0 # Api's enabled_apis = osapi_compute,metadata executor_thread_pool_size = 64 fatal_deprecations = False # Configdrive force_config_drive = False host = compute8.mgmt.lab.mydomain.com image_cache_manager_interval = 0 instance_name_template = instance-%08x # Ceilometer notification configurations instance_usage_audit = True instance_usage_audit_period = hour instances_path = /var/lib/nova/instances ## Vif libvirt_vif_type = ethernet log_dir = /var/log/nova # Metadata metadata_workers = 16 # Network my_ip = 192.168.56.47 notify_on_state_change = vm_and_task_state osapi_compute_workers = 16 ram_allocation_ratio = 1.0 reserved_host_disk_mb = 0 reserved_host_memory_mb = 2048 resume_guests_state_on_host_boot = False rootwrap_config = /etc/nova/rootwrap.conf rpc_response_timeout = 60 service_down_time = 120 state_path = /var/lib/nova # Rpc all transport_url = rabbit://nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.194:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.209:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e 8cf8bd7@192.168.56.179:5671//nova # Disable stderr logging use_stderr = False vif_plugging_is_fatal = True vif_plugging_timeout = 30

[api] auth_strategy = keystone enable_instance_password = True use_forwarded_for = False vendordata_jsonfile_path = /etc/nova/vendor_data.json

# Cache [cache] backend = oslo_cache.memcache_pool enabled = true memcache_servers = 192.168.56.68:11211,192.168.56.85:11211,192.168.56.170:11211

# Cinder [cinder] cafile = /etc/ssl/certs/ca-certificates.crt catalog_info = volumev3:cinderv3:internalURL cross_az_attach = True os_region_name = A_Lab

[conductor] workers = 16

[filter_scheduler] available_filters = nova.scheduler.filters.all_filters enabled_filters = RetryFilter, AvailabilityZoneFilter, RamFilter, AggregateRamFilter, ComputeFilter, AggregateCoreFilter, DiskFilter, AggregateDiskFilter, AggregateNumInstancesFilter, AggregateIoOpsFilter, ComputeCapabilitiesFilter, ImagePropertiesFilter, ServerGroupAntiAffinityFilter, ServerGroupAffinityFilter, NUMATopologyFilter, SameHostFilter, DifferentHostFilter host_subset_size = 10 max_instances_per_host = 50 max_io_ops_per_host = 10 ram_weight_multiplier = 5.0 tracks_instance_changes = True weight_classes = nova.scheduler.weights.all_weighers

# Glance [glance] api_servers = https://vip.mgmt.lab.mydomain.com:9292 cafile = /etc/ssl/certs/ca-certificates.crt

[key_manager] fixed_key = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

[keystone_authtoken] auth_type = password auth_uri = https://vip.mgmt.lab.mydomain.com:5000 auth_url = https://vip.mgmt.lab.mydomain.com:35357 cafile = /etc/ssl/certs/ca-certificates.crt insecure = False memcache_secret_key = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx # if your memcached server is shared, use these settings to avoid cache poisoning memcache_security_strategy = ENCRYPT memcached_servers = 192.168.56.68:11211,192.168.56.85:11211,192.168.56.170:11211 password = xxxxxxxxxxxxxxxxxxxxxxx

project_domain_id = default project_name = service region_name = A_Lab token_cache_time = 300 user_domain_id = default username = nova

[libvirt] disk_cachemodes = network=writeback hw_disk_discard = unmap images_rbd_ceph_conf = /etc/ceph/ceph.conf images_rbd_pool = vms images_type = lvm images_volume_group = ssd_nova inject_key = False inject_partition = -2 inject_password = False live_migration_tunnelled = True live_migration_uri = "qemu+ssh://nova@%s/system?no_verify=1&keyfile=/var/lib/nova/.ssh/id_rsa" rbd_secret_uuid = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx # ceph rbd support rbd_user = cinder remove_unused_resized_minimum_age_seconds = 3600 use_virtio_for_bridges = True virt_type = kvm

# Neutron [neutron] auth_type = password # Keystone client plugin authentication URL option auth_url = https://vip.mgmt.lab.mydomain.com:35357/v3 cafile = /etc/ssl/certs/ca-certificates.crt default_floating_pool = public insecure = False metadata_proxy_shared_secret = xxxxxxxxxxxxxxxxxxxxxxxxxxxx # Keystone client plugin password option password = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx project_domain_name = Default project_name = service region_name = A_Lab service_metadata_proxy = True url = https://vip.mgmt.lab.mydomain.com:9696 user_domain_name = Default # Keystone client plugin username option username = neutron

[oslo_concurrency] lock_path = /var/lock/nova # Notifications [oslo_messaging_notifications] driver = messagingv2 notification_topics = notifications transport_url = rabbit://nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.194:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.209:5671,nova:09c23ad7680fc920ab466c5ad5f6c88c2e2e8cf8bd7@192.168.56.179:5671//nova

[oslo_messaging_rabbit] rpc_conn_pool_size = 30 ssl = True

# Placement [placement] auth_type = "password" auth_url = https://vip.mgmt.lab.mydomain.com:35357/v3 cafile = /etc/ssl/certs/ca-certificates.crt insecure = False os_interface = internal os_region_name = A_Lab password = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx project_domain_name = Default project_name = service user_domain_name = Default username = placement

[quota] cores = 20 injected_file_content_bytes = 10240 injected_file_path_length = 255 injected_files = 5 instances = 10 key_pairs = 100 max_age = 0 metadata_items = 128 ram = 32768 server_group_members = 10 server_groups = 10

[scheduler] discover_hosts_in_cells_interval = 60 host_manager = host_manager max_attempts = 5 periodic_task_interval = 60 scheduler_driver = filter_scheduler

[spice] agent_enabled = True enabled = True # Console Url and binds html5proxy_base_url = https://dashboard.iaas.lab.mydomain.com:6080/spice_auto.html server_listen = 192.168.56.47 server_proxyclient_address = 192.168.56.47

[upgrade_levels] compute = auto

[vnc] enabled = False

[wsgi] api_paste_config = /etc/nova/api-paste.ini secure_proxy_ssl_header = HTTP_X_FORWARDED_PROTO

Thank you in advance for any suggestions.

Kind regards, Laszlo