** Changed in: nova Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1373962
Title: LVM backed VM fails to launch Status in OpenStack Compute (Nova): Fix Released Bug description: LVM ephemeral storage backend is broken in the most recent Nova (commit 945646e1298a53be6ae284766f5023d754dfe57d) To reproduce in Devstack: 1. Configure Nova to use LVM ephemeral storage by adding to create_nova_conf function in lib/nova iniset $NOVA_CONF libvirt images_type "lvm" iniset $NOVA_CONF libvirt images_volume_group "nova-lvm" 2. Create a backing file for LVM truncate -s 5G nova-backing-file 3. Mount the file via loop device sudo losetup /dev/loop0 nova-backing-file 4. Create nova-lvm volume group sudo vgcreate nova-lvm /dev/loop0 5. Launch Devstack 6. Alternatively, skipping step 1, /etc/nova/nova.conf can be modified after Devstack is launched by adding [libvirt] images_type = lvm images_volume_group = nova-lvm and then restarting nova-compute by entering the Devstack screen session, going to the n-cpu screen and hitting Ctrl-C, Up-arrow, and Enter. 7. Launch an instance nova boot test --flavor 1 --image cirros-0.3.2-x86_64-uec Instance fails to launch. Nova compute reports 2014-09-25 10:11:08.180 ERROR nova.compute.manager [req-b7924ad0-5f4b-46eb-a798-571d97c77145 demo demo] [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] Instance failed to spawn 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] Traceback (most recent call last): 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/opt/stack/nova/nova/compute/manager.py", line 2231, in _build_resources 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] yield resources 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/opt/stack/nova/nova/compute/manager.py", line 2101, in _build_and_run_instance 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] block_device_info=block_device_info) 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 2617, in spawn 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] block_device_info, disk_info=disk_info) 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 4434, in _create_domain_and_network 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] domain.destroy() 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 4358, in _create_domain 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] for vif in network_info if vif.get('active', True) is False] 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/opt/stack/nova/nova/openstack/common/excutils.py", line 82, in __exit__ 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] six.reraise(self.type_, self.value, self.tb) 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 4349, in _create_domain 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] raise exception.VirtualInterfaceCreateException() 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 183, in doit 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] result = proxy_call(self._autowrap, f, *args, **kwargs) 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 141, in proxy_call 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] rv = execute(f, *args, **kwargs) 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 122, in execute 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] six.reraise(c, e, tb) 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 80, in tworker 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] rv = meth(*args, **kwargs) 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] File "/usr/lib/python2.7/dist-packages/libvirt.py", line 711, in createWithFlags 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self) 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] libvirtError: cannot open file '/dev/nova-lvm/8d69f0de-253a-403e-a137-0da77b0d415c_disk.config': No such file or directory 2014-09-25 10:11:08.180 29649 TRACE nova.compute.manager [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] 2014-09-25 10:11:08.218 AUDIT nova.compute.manager [req-b7924ad0-5f4b-46eb-a798-571d97c77145 demo demo] [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] Terminating instance 2014-09-25 10:11:08.228 29649 INFO nova.virt.libvirt.driver [-] [instance: 8d69f0de-253a-403e-a137-0da77b0d415c] Instance destroyed successfully. To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1373962/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp