Openstack start instance failed.

[wang]

Openstack start instance failed.

Description
===========
Openstack starts the instance, and after a while the instance is in an error state.

logs
=====
 Failed to compute_task_build_instances: No valid host was found. There are not enough hosts available.
Traceback (most recent call last):

  File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 150, in inner
    return func(*args, **kwargs)

  File "/usr/lib/python2.7/site-packages/nova/scheduler/manager.py", line 104, in select_destinations
    dests = self.driver.select_destinations(ctxt, spec_obj)

  File "/usr/lib/python2.7/site-packages/nova/scheduler/filter_scheduler.py", line 74, in select_destinations
    raise exception.NoValidHost(reason=reason)

NoValidHost: No valid host was found. There are not enough hosts available.

[Balazs Gibizer (balazs-gibizer)]

Please use the bug report template when you filling a new bug [1].
Please provide use reproduction steps. A NoValidHost is not an Error per se. It means that the scheduler did not found available resources in your cloud for your new instance. Do you have enough free resources in your cloud? Does the nova-compute services are up and running?

I'm marking this bug Incomplete. Please set it back to New when the requested information is provided.

[1] http://paste.openstack.org/show/793978/

[Launchpad Janitor (janitor)]

[Expired for OpenStack Compute (nova) because there has been no activity for 60 days.]