Open Stack

Thanks Jay for the response. Sorry I missed out on copying right error.

Here is the log:
2017-02-20 14:24:06.211 TRACE nova.conductor.manager NoValidHost: No valid
host was found. There are not enough hosts available.
2017-02-20 14:24:06.211 TRACE nova.conductor.manager
2017-02-20 14:24:06.211 TRACE nova.conductor.manager
2017-02-20 14:24:06.217 ERROR nova.conductor.manager
[req-e17fda8d-0d53-4735-922e-dd635d2ab7c0 admin admin] No cell mapping
found for cell0 while trying to record scheduling failure. Setup is
incomplete.

I tried command you mentioned, still I see same error on conductor.

As part of stack.sh on controller I see below command was executed related
to "cell". Isn't it devstack should take care of this part during initial
bringup or am I missing any parameters in localrc for same?.

NOTE: I have not explicitly enabled n-cell in localrc

2017-02-20 14:11:47.510 INFO migrate.versioning.api [-] done
+lib/nova:init_nova:683                    recreate_database nova
+lib/database:recreate_database:112        local db=nova
+lib/database:recreate_database:113        recreate_database_mysql nova
+lib/databases/mysql:recreate_database_mysql:56  local db=nova
+lib/databases/mysql:recreate_database_mysql:57  mysql -uroot -pvmware
-h127.0.0.1 -e 'DROP DATABASE IF EXISTS nova;'
+lib/databases/mysql:recreate_database_mysql:58  mysql -uroot -pvmware
-h127.0.0.1 -e 'CREATE DATABASE nova CHARACTER SET utf8;'
+lib/nova:init_nova:684                    recreate_database nova_cell0
+lib/database:recreate_database:112        local db=nova_cell0
+lib/database:recreate_database:113        recreate_database_mysql
nova_cell0
+lib/databases/mysql:recreate_database_mysql:56  local db=nova_cell0
+lib/databases/mysql:recreate_database_mysql:57  mysql -uroot -pvmware
-h127.0.0.1 -e 'DROP DATABASE IF EXISTS nova_cell0;'
+lib/databases/mysql:recreate_database_mysql:58  mysql -uroot -pvmware
-h127.0.0.1 -e 'CREATE DATABASE nova_cell0 CHARACTER SET utf8;'
+lib/nova:init_nova:689                    /usr/local/bin/nova-manage
--config-file /etc/nova/nova.conf db sync
WARNING: cell0 mapping not found - not syncing cell0.
2017-02-20 14:11:50.846 INFO migrate.versioning.api
[req-145fe57e-7751-412f-a1f6-06dfbd39b711 None None] 215 -> 216...
2017-02-20 14:11:54.279 INFO migrate.versioning.api
[req-145fe57e-7751-412f-a1f6-06dfbd39b711 None None] done
2017-02-20 14:11:54.280 INFO migrate.versioning.api
[req-145fe57e-7751-412f-a1f6-06dfbd39b711 None None] 216 -> 217...
2017-02-20 14:11:54.288 INFO migrate.versioning.api
[req-145fe57e-7751-412f-a1f6-06dfbd39b711 None None] done



Thanks,
Prashant

On Mon, Feb 20, 2017 at 8:21 PM, Jay Pipes <jaypipes at gmail.com> wrote:

> On 02/20/2017 09:33 AM, Prashant Shetty wrote:
>
>> Team,
>>
>> I have multi node devstack setup with single controller and multiple
>> computes running stable/ocata.
>>
>> On compute:
>> ENABLED_SERVICES=n-cpu,neutron,placement-api
>>
>> Both KVM and ESxi compute came up fine:
>> vmware at cntr11:~$ nova hypervisor-list
>>
>>   warnings.warn(msg)
>> +----+----------------------------------------------------+-
>> ------+---------+
>> | ID | Hypervisor hostname                                | State |
>> Status  |
>> +----+----------------------------------------------------+-
>> ------+---------+
>> | 4  | domain-c82529.2fb3c1d7-fe24-49ea-9096-fcf148576db8 | up    |
>> enabled |
>> | 7  | kvm-1                                              | up    |
>> enabled |
>> +----+----------------------------------------------------+-
>> ------+---------+
>> vmware at cntr11:~$
>>
>> All services seems to run fine. When tried to launch instance I see
>> below errors in nova-conductor logs and instance stuck in "scheduling"
>> state forever.
>> I dont have any config related to n-cell in controller. Could someone
>> help me to identify why nova-conductor is complaining about cells.
>>
>> 2017-02-20 14:24:06.128 WARNING oslo_config.cfg
>> [req-e17fda8d-0d53-4735-922e-dd635d2ab7c0 admin admin] Option
>> "scheduler_default_filters" from group "DEFAULT" is deprecated. Use
>> option "enabled_filters" from group "filter_scheduler".
>> 2017-02-20 14:24:06.211 ERROR nova.conductor.manager
>> [req-e17fda8d-0d53-4735-922e-dd635d2ab7c0 admin admin] Failed to
>> schedule instances
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager Traceback (most
>> recent call last):
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/opt/stack/nova/nova/conductor/manager.py", line 866, in
>> schedule_and_build_instances
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager
>> request_specs[0].to_legacy_filter_properties_dict())
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/opt/stack/nova/nova/conductor/manager.py", line 597, in
>> _schedule_instances
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     hosts =
>> self.scheduler_client.select_destinations(context, spec_obj)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/opt/stack/nova/nova/scheduler/utils.py", line 371, in wrapped
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     return
>> func(*args, **kwargs)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/opt/stack/nova/nova/scheduler/client/__init__.py", line 51, in
>> select_destinations
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     return
>> self.queryclient.select_destinations(context, spec_obj)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/opt/stack/nova/nova/scheduler/client/__init__.py", line 37, in
>> __run_method
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     return
>> getattr(self.instance, __name)(*args, **kwargs)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/opt/stack/nova/nova/scheduler/client/query.py", line 32, in
>> select_destinations
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     return
>> self.scheduler_rpcapi.select_destinations(context, spec_obj)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/opt/stack/nova/nova/scheduler/rpcapi.py", line 129, in
>> select_destinations
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     return
>> cctxt.call(ctxt, 'select_destinations', **msg_args)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/client.py",
>> line 169, in call
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     retry=self.retry)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/usr/local/lib/python2.7/dist-packages/oslo_messaging/transport.py",
>> line 97, in _send
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager
>> timeout=timeout, retry=retry)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/usr/local/lib/python2.7/dist-packages/oslo_messaging/_driv
>> ers/amqpdriver.py",
>> line 458, in send
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     retry=retry)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/usr/local/lib/python2.7/dist-packages/oslo_messaging/_driv
>> ers/amqpdriver.py",
>> line 449, in _send
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     raise result
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager NoValidHost_Remote:
>> No valid host was found. There are not enough hosts available.
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager Traceback (most
>> recent call last):
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py",
>> line 218, in inner
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     return
>> func(*args, **kwargs)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/opt/stack/nova/nova/scheduler/manager.py", line 98, in
>> select_destinations
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     dests =
>> self.driver.select_destinations(ctxt, spec_obj)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager   File
>> "/opt/stack/nova/nova/scheduler/filter_scheduler.py", line 79, in
>> select_destinations
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager     raise
>> exception.NoValidHost(reason=reason)
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager NoValidHost: No
>> valid host was found. There are not enough hosts available.
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager
>> 2017-02-20 14:24:06.211 TRACE nova.conductor.manager
>> 2017-02-20 14:24:06.217 ERROR nova.conductor.manager
>> [req-e17fda8d-0d53-4735-
>>
>
> I don't see anything above that is complaining about "No cell mapping
> found for cell0"? Perhaps you pasted the wrong snippet from the logs.
>
> Regardless, I think you simply need to run nova-manage cell_v2
> simple_cell_setup. This is a required step in Ocata deployments. You can
> read about this here:
>
> https://docs.openstack.org/developer/nova/man/nova-manage.html
>
> and the release notes here:
>
> https://docs.openstack.org/releasenotes/nova/ocata.html
>
> and more information about cells here:
>
> https://docs.openstack.org/developer/nova/cells.html
>
> Best,
> -jay
>
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