nova migrate and resize don't work

[Michael Kraynov]

When we try to resize or migrate (non live) instance instances get Error state and in the logs we can see the following errors:

Message
Unexpected error while running command. Command: ssh 172.29.34.178 mkdir -p /var/lib/nova/instances/ffbd8521-aee8-4ab0-8ea8-3e41504e426d Exit code: 1 Stdout: '' Stderr: "Warning: Permanently added '172.29.34.178' (RSA) to the list of known hosts.\r\n"
Code
500
Details
File "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line 290, in decorated_function return function(self, context, *args, **kwargs) File "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line 3438, in resize_instance block_device_info) File "/usr/lib/python2.6/site-packages/nova/virt/libvirt/driver.py", line 4958, in migrate_disk_and_power_off utils.execute('ssh', dest, 'mkdir', '-p', inst_base) File "/usr/lib/python2.6/site-packages/nova/utils.py", line 165, in execute return processutils.execute(*cmd, **kwargs) File "/usr/lib/python2.6/site-packages/nova/openstack/common/processutils.py", line 193, in execute cmd=' '.join(cmd))

Workaround:
We should do the following steps on the all compute nodes:
1. Enable shell for the user nova:
sed -i "s|/var/lib/nova:/bin/false|/var/lib/nova:/bin/bash|g" /etc/passwd
2. Login as nova:
su nova
3. Set Loglevel to error:
echo "LogLevel=error" >> ~/.ssh/config

After that resize and migrating are working fine.

[Matthew Mosesohn (raytrac3r)]

https://bugs.launchpad.net/mos/+bug/1393785 this is already merged for 6.0 and will be fixed for 5.1.2. Marking as duplicate.