Reviewed: https://review.openstack.org/514902 Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=e18608d579ac28b3d30879d6e375f0c89a3e4ef1 Submitter: Zuul Branch: master
commit e18608d579ac28b3d30879d6e375f0c89a3e4ef1 Author: Jianghua Wang <[email protected]> Date: Wed Oct 25 03:04:16 2017 +0000 XenAPI: resolve VBD unplug failure with VM_MISSING_PV_DRIVERS error The virtual block device(VBD) hot unplugging should be done when VM has paravirtualization(PV) driver installed. But we observed failures with VM_MISSING_PV_DRIVERS error on a real PV VM sometime. Actually it's a race condition. At VM booting, it needs some time for the PV driver to be connected. If the VBD.unplug operation goes before the PV driver connected to xen, it will failed with VM_MISSING_PV_DRIVERS. The fix is to retry unplug. If really there is no PV driver installed in VM, failed after the attempts. Change-Id: I6b788ba24aa3e7c061dac06c52570ff3818bc91a Closes-Bug: #1727134 ** Changed in: nova Status: In Progress => 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/1727134 Title: XenAPI: resolve the failure VM_MISSING_PV_DRIVERS for PV VM Status in OpenStack Compute (nova): Fix Released Bug description: When testing: tempest.api.compute.volumes.test_attach_volume.AttachVolumeTestJSON.test_attach_detach_volume observed the error of "VM_MISSING_PV_DRIVERS"; But actually the VM does have PV drivers installed. 2017-10-25 02:17:29.566 ^[[01;31mERROR nova.virt.xenapi.vm_utils [^[[01;36mreq-7997faf5-5d5b-4312-a7c6-d5a45d431526 ^[[00;36mtempest-ServerActionsTestJSON-1628628303 tempest-ServerActionsTestJSON-1628628303^[[01;31m] ^[[01;35m^[[01;31mUnable to unplug VBD^[[00m^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00mTraceback (most recent call last):^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 333, in unplug_vbd^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m greenthread.sleep(1)^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m File "/opt/stack/nova/nova/virt/xenapi/client/objects.py", line 94, in unplug^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m synchronized_unplug()^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m File "/usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py", line 271, in inner^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m return f(*args, **kwargs)^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m File "/opt/stack/nova/nova/virt/xenapi/client/objects.py", line 89, in synchronized_unplug^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m self._call_method("unplug", vbd_ref)^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m File "/opt/stack/nova/nova/virt/xenapi/client/objects.py", line 59, in _call_method^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m return self.session.call_xenapi(call, *args)^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m File "/opt/stack/nova/nova/virt/xenapi/client/session.py", line 197, in call_xenapi^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m return session.xenapi_request(method, args)^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m File "/usr/local/lib/python2.7/dist-packages/XenAPI.py", line 133, in xenapi_request^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m result = _parse_result(getattr(self, methodname)(*full_params))^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m File "/usr/local/lib/python2.7/dist-packages/XenAPI.py", line 203, in _parse_result^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m raise Failure(result['ErrorDescription'])^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00mFailure: ['VM_MISSING_PV_DRIVERS', 'OpaqueRef:269c1940-69fd-c549-ed1d-1aefe725b967']^M ^[[01;31m2017-10-25 02:17:29.566 TRACE nova.virt.xenapi.vm_utils ^[[01;35m^[[00m^M To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1727134/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
