Open Stack

Hi i am deploying a devstack juno on ubuntu 14.04 server virtual machine.
After installation,when i am trying to launch a instance,its failed.
I am getting "host not found" error.
Below is part of /opt/stack/logs/screen/screen-n-cond.log


Below is ther error
2014-08-28 23:44:59.448 ERROR nova.scheduler.utils
[req-6f220296-8ec2-4e49-821d-0d69d3acc315 admin admin] [instance:
7f105394-414c-4458-b1a1-6f37d6cff87a] Error from last host:
juno-devstack-server (node juno-devstack-server): [u'Traceback (most recent
call last):\n', u'  File "/opt/stack/nova/nova/compute/manager.py", line
1932, in do_build_and_run_instance\n    filter_properties)\n', u'  File
"/opt/stack/nova/nova/compute/manager.py", line 2067, in
_build_and_run_instance\n    instance_uuid=instance.uuid,
reason=six.text_type(e))\n', u'RescheduledException: Build of instance
7f105394-414c-4458-b1a1-6f37d6cff87a was re-scheduled: not all arguments
converted during string formatting\n']







Regards
Nikesh
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