'Unexpected API Error' when add fixed ip to an instance with 'ERROR' status

[shan-wan]

Description:

'Unexpected API Error' when add fixed ip to an instance with 'ERROR' status

Project:

Openstack

Project Area:

Openstack cinder

Release:

Openstack master branch

Severity:

S3

Full Details:

Test Environment and PreCondtion:

Devstack deployed Openstack environment

Detailed Test Steps:

[root@scaleiovm1 ~]# nova flavor-list
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
| ID | Name      | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public |
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
| 1  | m1.tiny   | 512       | 1    | 0         |      | 1     | 1.0         | True      |
| 2  | m1.small  | 2048      | 20   | 0         |      | 1     | 1.0         | True      |
| 3  | m1.medium | 4096      | 40   | 0         |      | 2     | 1.0         | True      |
| 4  | m1.large  | 8192      | 80   | 0         |      | 4     | 1.0         | True      |
| 42 | m1.nano   | 64        | 0    | 0         |      | 1     | 1.0         | True      |
| 5  | m1.xlarge | 16384     | 160  | 0         |      | 8     | 1.0         | True      |
| 84 | m1.micro  | 128       | 0    | 0         |      | 1     | 1.0         | True      |
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
[root@scaleiovm1 ~]# nova boot --flavor 4 --image 28a0308f-b5f6-4394-a5ad-43bc66506ec0 test1 ---> chose a large one which host can't supply the resource.
...
...

[root@scaleiovm1 ~]# nova list
+--------------------------------------+-------+--------+------------+-------------+------------------+
| ID                                   | Name  | Status | Task State | Power State | Networks         |
+--------------------------------------+-------+--------+------------+-------------+------------------+
| 49a5083b-e186-4d40-9a57-545a3a9d5058 | test1 | ERROR  | -          | NOSTATE     |                  |
+--------------------------------------+-------+--------+------------+-------------+------------------+

[root@scaleiovm1 ~]# nova add-fixed-ip 49a5083b-e186-4d40-9a57-545a3a9d5058 default
ERROR (ClientException): Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
<class 'nova.exception.NovaException'> (HTTP 500) (Request-ID: req-db5d8a55-2c7b-4eac-bed8-1cde23248dfd)

Expected Results:

nova should report some meaningful errors in this situation.

Actual results:

The error message is confusing.

Problem details:

Support Materials:

2015-11-24 06:04:35.413 ERROR nova.api.openstack.extensions [req-db5d8a55-2c7b-4eac-bed8-1cde23248dfd admin admin] Unexpected exception in API method
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions Traceback (most recent call last):
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/api/openstack/extensions.py", line 478, in wrapped
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions     return f(*args, **kwargs)
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/api/validation/__init__.py", line 73, in wrapper
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions     return func(*args, **kwargs)
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/api/openstack/compute/multinic.py", line 50, in _add_fixed_ip
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions     self.compute_api.add_fixed_ip(context, instance, network_id)
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/compute/api.py", line 235, in wrapped
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions     return func(self, context, target, *args, **kwargs)
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/compute/api.py", line 224, in inner
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions     return function(self, context, instance, *args, **kwargs)
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/compute/api.py", line 2753, in add_fixed_ip
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions     instance=instance, network_id=network_id)
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/compute/rpcapi.py", line 390, in add_fixed_ip_to_instance
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions     cctxt = self.client.prepare(server=_compute_host(None, instance),
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/compute/rpcapi.py", line 67, in _compute_host
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions     'Instance %s') % instance.uuid)
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions NovaException: Unable to find host for Instance 49a5083b-e186-4d40-9a57-545a3a9d5058
2015-11-24 06:04:35.413 21187 ERROR nova.api.openstack.extensions
2015-11-24 06:04:35.413 INFO nova.api.openstack.wsgi [req-db5d8a55-2c7b-4eac-bed8-1cde23248dfd admin admin] HTTP exception thrown: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
<class 'nova.exception.NovaException'>
2015-11-24 06:04:35.414 DEBUG nova.api.openstack.wsgi [req-db5d8a55-2c7b-4eac-bed8-1cde23248dfd admin admin] Returning 500 to user: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
<class 'nova.exception.NovaException'> __call__ /opt/stack/new/nova/nova/api/openstack/wsgi.py:1175