[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?

-- 
You received this bug notification because you are a member of OpenStack
Security Group, which is subscribed to OpenStack.
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

To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1252519/+subscriptions




More information about the Openstack-security mailing list