** Changed in: nova
Status: Fix Committed => Fix Released
** Changed in: nova
Milestone: None => juno-rc1
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https://bugs.launchpad.net/bugs/1362221
Title:
VMs fail to start when Ceph is used as a backend for ephemeral drives
Status in OpenStack Compute (Nova):
Fix Released
Status in OpenStack Compute (nova) icehouse series:
Fix Committed
Bug description:
VMs' drives placement in Ceph option has been chosen
(libvirt.images_types == 'rbd').
When user creates a flavor and specifies:
- root drive size >0
- ephemeral drive size >0 (important)
and tries to boot a VM, he gets "no valid host was found" in the
scheduler log:
Error from last host: node-3.int.host.com (node node-3.int.host.com):
[u'Traceback (most recent call last):\n', u'
File "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line 1305,
in _build_instance\n set_access_ip=set_access_ip)\n', u' File "/usr/l
ib/python2.6/site-packages/nova/compute/manager.py", line 393, in
decorated_function\n return function(self, context, *args, **kwargs)\n', u' File
"/usr/lib/python2.6/site-packages/nova/compute/manager.py", line 1717, in
_spawn\n LOG.exception(_(\'Instance failed to spawn\'), instance=instanc
e)\n', u' File
"/usr/lib/python2.6/site-packages/nova/openstack/common/excutils.py", line 68,
in __exit__\n six.reraise(self.type_, self.value, se
lf.tb)\n', u' File
"/usr/lib/python2.6/site-packages/nova/compute/manager.py", line 1714, in
_spawn\n block_device_info)\n', u' File "/usr/lib/py
thon2.6/site-packages/nova/virt/libvirt/driver.py", line 2259, in spawn\n
admin_pass=admin_password)\n', u' File "/usr/lib/python2.6/site-packages
/nova/virt/libvirt/driver.py", line 2648, in _create_image\n
ephemeral_size=ephemeral_gb)\n', u' File
"/usr/lib/python2.6/site-packages/nova/virt/
libvirt/imagebackend.py", line 186, in cache\n *args, **kwargs)\n', u' File
"/usr/lib/python2.6/site-packages/nova/virt/libvirt/imagebackend.py",
line 587, in create_image\n prepare_template(target=base, max_size=size,
*args, **kwargs)\n', u' File "/usr/lib/python2.6/site-packages/nova/opens
tack/common/lockutils.py", line 249, in inner\n return f(*args, **kwargs)\n',
u' File "/usr/lib/python2.6/site-packages/nova/virt/libvirt/imagebac
kend.py", line 176, in fetch_func_sync\n fetch_func(target=target, *args,
**kwargs)\n', u' File "/usr/lib/python2.6/site-packages/nova/virt/libvir
t/driver.py", line 2458, in _create_ephemeral\n disk.mkfs(os_type, fs_label,
target, run_as_root=is_block_dev)\n', u' File "/usr/lib/python2.6/sit
e-packages/nova/virt/disk/api.py", line 117, in mkfs\n utils.mkfs(default_fs,
target, fs_label, run_as_root=run_as_root)\n', u' File "/usr/lib/pyt
hon2.6/site-packages/nova/utils.py", line 856, in mkfs\n execute(*args,
run_as_root=run_as_root)\n', u' File "/usr/lib/python2.6/site-packages/nov
a/utils.py", line 165, in execute\n return processutils.execute(*cmd,
**kwargs)\n', u' File "/usr/lib/python2.6/site-packages/nova/openstack/commo
n/processutils.py", line 193, in execute\n cmd=\' \'.join(cmd))\n',
u"ProcessExecutionError: Unexpected error while running command.\nCommand: sudo
nova-rootwrap /etc/nova/rootwrap.conf mkfs -t ext3 -F -L ephemeral0
/var/lib/nova/instances/_base/ephemeral_1_default\nExit code: 1\nStdout:
''\nStde
rr: 'mke2fs 1.41.12 (17-May-2010)\\nmkfs.ext3: No such file or directory
while trying to determine filesystem size\\n'\n"]
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