[Openstack-security] [Bug 1252519] Re: Live migration failed because of file permission changed
Facundo Maldonado
facundo.n.maldonado at intel.com
Thu Feb 20 14:16:25 UTC 2014
Cannot reproduce.
Openstack: fresh devstack installation, 1 controller / 3 compute nodes
Shared storage with GlusterFS: 2 nodes/ 2 bricks
OS: Ubuntu server 12.04
Instances were migrated between compute nodes without problem.
The files "console.log" and "disk" are owned by root after the first migration, but that do not
prevent to keep migrating.
Any other clue to try to reproduce this bug?
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https://bugs.launchpad.net/bugs/1252519
Title:
Live migration failed because of file permission changed
Status in OpenStack Compute (Nova):
Triaged
Bug description:
Openstack : Havana
OS : CentOS 6.4
Shared storage with GlusterFS : /var/lib/nova/instances mounted on glusterfs shared
Instance start up fine on node01. When live migration happen, it moved to node02 but failed with the following error
2013-11-18 16:27:37.813 9837 ERROR nova.openstack.common.periodic_task [-] Error during ComputeManager.update_available_resource: Unexpected error while running command.
Command: env LC_ALL=C LANG=C qemu-img info /var/lib/nova/instances/aa1deb40-ae1d-45e4-a37e-7b0607df372f/disk
Exit code: 1
Stdout: ''
Stderr: "qemu-img: Could not open '/var/lib/nova/instances/aa1deb40-ae1d-45e4-a37e-7b0607df372f/disk'\n"
2013-11-18 16:27:37.813 9837 TRACE nova.openstack.common.periodic_task Traceback (most recent call last):
2013-11-18 16:27:37.813 9837 TRACE nova.openstack.common.periodic_task File "/usr/lib/python2.6/site-packages/nova/openstack/common/periodic_task.py", line 180, in run_periodic_tasks
2013-11-18 16:27:37.813 9837 TRACE nova.openstack.common.periodic_task task(self, context)
The problem is with the file ownership of "console.log" and "disk".
Those file should be owned by user "qemu" and group "qemu" but after
the migration, both files are owned by root
drwxr-xr-x 2 nova nova 53 Nov 18 13:40 .
drwxr-xr-x 6 nova nova 110 Nov 18 13:43 ..
-rw-rw---- 1 root root 1546 Nov 18 13:43 console.log
-rw-r--r-- 1 root root 12058624 Nov 18 13:42 disk
-rw-r--r-- 1 nova nova 1569 Nov 18 13:42 libvirt.xml
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