Openstack pike: No valid host was found. There are not enough hosts available. - code 500
I have setup a multi nodes Openstack env using tripleO for a PoC. The environment consists of (Running on baremetal):
1- Undercloud
2- Overcloud:
-Controller
-Compute-0
-Compute-1
I have created a few instances and everything is fine but now I'm not able to create any new instance. I have checked the compute resources and they are plenty. I'm using cinder for both storing the instances and images.
(overcloud) [heat-admin@overcloud-controller-0 ~]$ openstack compute service list
+----+------------------+---------------------------------+-----------+---------+-------+----------------------------+
| ID | Binary | Host | Zone | Status | State | Updated At |
+----+------------------+---------------------------------+-----------+---------+-------+----------------------------+
| 4 | nova-conductor | overcloud-controller-0.lab.poc | internal | enabled | up | 2018-03-13T08:50:50.000000 |
| 18 | nova-compute | overcloud-novacompute-1.lab.poc | compute-1 | enabled | up | 2018-03-13T08:50:49.000000 |
| 19 | nova-consoleauth | overcloud-controller-0.lab.poc | internal | enabled | up | 2018-03-13T08:50:47.000000 |
| 20 | nova-scheduler | overcloud-controller-0.lab.poc | internal | enabled | up | 2018-03-13T08:50:51.000000 |
| 21 | nova-compute | overcloud-novacompute-0.lab.poc | compute-0 | enabled | up | 2018-03-13T08:50:50.000000 |
+----+------------------+---------------------------------+-----------+---------+-------+----------------------------+
nova-conductor.log (debug enabled):
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager [req-c982618d-c1c0-46f1-9182-3e542f5af8af 5c1e3b2d8bc44ca08d3ccfe9c2a6ff17 7e66bf9554f748018600d046f22acc16 - default default] Failed to schedule instances: NoValidHost_Remote: No valid host was found. There are not enough hosts available. There are not enough hosts available.
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 232, in inner
return func(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/scheduler/manager.py", line 149, in select_destinations
alloc_reqs_by_rp_uuid, provider_summaries)
File "/usr/lib/python2.7/site-packages/nova/scheduler/filter_scheduler.py", line 110, in select_destinations
raise exception.NoValidHost(reason=reason)
NoValidHost: No valid host was found. There are not enough hosts available.
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager Traceback (most recent call last):
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 1036, in schedule_and_build_instances
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager instance_uuids)
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 626, in _schedule_instances
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager request_spec, instance_uuids)
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager File "/usr/lib/python2.7/site-packages/nova/scheduler/utils.py", line 586, in wrapped
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager return func(*args, **kwargs)
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager File "/usr/lib/python2.7/site-packages/nova/scheduler/client/__init__.py", line 52, in select_destinations
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager instance_uuids)
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager File "/usr/lib/python2.7/site-packages/nova/scheduler/client/__init__.py", line 37, in __run_method
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager return getattr(self.instance, __name)(*args, **kwargs)
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager File "/usr/lib/python2.7/site-packages/nova/scheduler/client/query.py", line 33, in select_destinations
2018-03-13 07:13:52.676 3840 ERROR nova.conductor.manager instance_uuids)
2018-03-13 07:13:52.676 3840 ERROR ...