yahoo-eng-team team mailing list archive

[Yogev Rabl <yrabl@xxxxxxxxxx>]

Public bug reported:

Description of problem:
The migration and live migration of instances fail when Nova is set to work with RBD as a back end for the instances disks. 
When attempting to migrate an instance from one host to another an error prompt:

Error: Failed to launch instance "osp5": Please try again later [Error:
Unexpected error while running command. Command: ssh <host address>
mkdir -p /var/lib/nova/instances/98cc014a-0d6d-48bc-9d76-4fe361b67f3b
Exit code: 1 Stdout: u'This account is currently not available.\n'
Stderr: u''].

The log show: http://pastebin.test.redhat.com/267337

when attempting to run live migration this is the output:
http://pastebin.test.redhat.com/267340

There's a work around, to change the nova user settings on all the
compute nodes, on the /etc/passwd file from sbin/nologin to bin/bash and
run the command. I wouldn't recommend it, it creates a security breach
IMO.

Version-Release number of selected component (if applicable):
openstack-nova-api-2014.2.2-2.el7ost.noarch
python-nova-2014.2.2-2.el7ost.noarch
openstack-nova-compute-2014.2.2-2.el7ost.noarch
openstack-nova-common-2014.2.2-2.el7ost.noarch
openstack-nova-scheduler-2014.2.2-2.el7ost.noarch
python-novaclient-2.20.0-1.el7ost.noarch
openstack-nova-conductor-2014.2.2-2.el7ost.noarch

How reproducible:
100%

Steps to Reproduce:
1. Set the nova to work with RBD as the back end of the instances disks, according to the Ceph documentation
2. Launch an instance
3. migrate the instance to a different host 

Actual results:
The migration fails and the instance status moves to error.

Expected results:
the instance migrates to the other host

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1428553

Title:
  migration and live migration fails with image-type=rbd

Status in OpenStack Compute (Nova):
  New

Bug description:
  Description of problem:
  The migration and live migration of instances fail when Nova is set to work with RBD as a back end for the instances disks. 
  When attempting to migrate an instance from one host to another an error prompt:

  Error: Failed to launch instance "osp5": Please try again later
  [Error: Unexpected error while running command. Command: ssh <host
  address> mkdir -p /var/lib/nova/instances/98cc014a-0d6d-48bc-
  9d76-4fe361b67f3b Exit code: 1 Stdout: u'This account is currently not
  available.\n' Stderr: u''].

  The log show: http://pastebin.test.redhat.com/267337

  when attempting to run live migration this is the output:
  http://pastebin.test.redhat.com/267340

  There's a work around, to change the nova user settings on all the
  compute nodes, on the /etc/passwd file from sbin/nologin to bin/bash
  and run the command. I wouldn't recommend it, it creates a security
  breach IMO.

  Version-Release number of selected component (if applicable):
  openstack-nova-api-2014.2.2-2.el7ost.noarch
  python-nova-2014.2.2-2.el7ost.noarch
  openstack-nova-compute-2014.2.2-2.el7ost.noarch
  openstack-nova-common-2014.2.2-2.el7ost.noarch
  openstack-nova-scheduler-2014.2.2-2.el7ost.noarch
  python-novaclient-2.20.0-1.el7ost.noarch
  openstack-nova-conductor-2014.2.2-2.el7ost.noarch

  How reproducible:
  100%

  Steps to Reproduce:
  1. Set the nova to work with RBD as the back end of the instances disks, according to the Ceph documentation
  2. Launch an instance
  3. migrate the instance to a different host 

  Actual results:
  The migration fails and the instance status moves to error.

  Expected results:
  the instance migrates to the other host

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