The stack trace says "Unknown database 'nova_cell0'". Latest version of
Nova now requires to create a nova_cell0 DB. Please create it, and/or
look how DevStack is setting this up.
** Changed in: nova
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1659129
Title:
n-api throws exception when listing servers
Status in OpenStack Compute (nova):
Invalid
Bug description:
When I tried to list all servers, n-api throws exception complaining
about "Unknow database exception". I am using master branch TOT
version.
nicira@htb-1n-eng-dhcp8:~/devstack$ openstack server list
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/
and attach the Nova API log if possible.
<class 'oslo_db.exception.DBNonExistentDatabase'> (HTTP 500) (Request-ID:
req-4c779421-1c75-4e0a-b46f-ca2fe4995c25)
n-api log:
2017-01-24 19:51:27.176 DEBUG nova.compute.api
[req-4c779421-1c75-4e0a-b46f-ca2fe4995c25 demo demo] Searching by: {'deleted':
False, 'project_id': u'c1c62ff8a14348108d4519c65c3db3e1'} from (pid=9385)
get_all /opt/stack/nova/nova/compute/api.py:2331
2017-01-24 19:51:27.194 ERROR nova.api.openstack.extensions
[req-4c779421-1c75-4e0a-b46f-ca2fe4995c25 demo demo] Unexpected exception in
API method
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions Traceback (most
recent call last):
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/opt/stack/nova/nova/api/openstack/extensions.py", line 338, in wrapped
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
f(*args, **kwargs)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/opt/stack/nova/nova/api/validation/__init__.py", line 181, in wrapper
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
func(*args, **kwargs)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/opt/stack/nova/nova/api/validation/__init__.py", line 181, in wrapper
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
func(*args, **kwargs)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/opt/stack/nova/nova/api/openstack/compute/servers.py", line 209, in detail
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions servers =
self._get_servers(req, is_detail=True)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/opt/stack/nova/nova/api/openstack/compute/servers.py", line 344, in
_get_servers
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
sort_keys=sort_keys, sort_dirs=sort_dirs)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/opt/stack/nova/nova/compute/api.py", line 2416, in get_all
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
sort_dirs=sort_dirs)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/opt/stack/nova/nova/compute/api.py", line 2493, in _get_instances_by_filters
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
expected_attrs=fields, sort_keys=sort_keys, sort_dirs=sort_dirs)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/oslo_versionedobjects/base.py", line
184, in wrapper
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions result =
fn(cls, context, *args, **kwargs)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/opt/stack/nova/nova/objects/instance.py", line 1220, in get_by_filters
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
use_slave=use_slave, sort_keys=sort_keys, sort_dirs=sort_dirs)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/opt/stack/nova/nova/db/sqlalchemy/api.py", line 235, in wrapper
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions with
reader_mode.using(context):
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/lib/python2.7/contextlib.py", line 17, in __enter__
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
self.gen.next()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/enginefacade.py",
line 944, in _transaction_scope
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
allow_async=self._allow_async) as resource:
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/lib/python2.7/contextlib.py", line 17, in __enter__
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
self.gen.next()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/enginefacade.py",
line 558, in _session
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
bind=self.connection, mode=self.mode)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/enginefacade.py",
line 317, in _create_session2017-01-24 19:51:27.194 TRACE
nova.api.openstack.extensions self._start()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/enginefacade.py",
line 403, in _start
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions engine_args,
maker_args)2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/enginefacade.py",
line 427, in _setup_for_connection
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
sql_connection=sql_connection, **engine_kwargs)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/engines.py", line
155, in create_engine
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions test_conn =
_test_connection(engine, max_retries, retry_interval)2017-01-24 19:51:27.194
TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/engines.py", line
331, in _test_connection
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
engine.connect()2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line
2018, in connect
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
self._connection_cls(self, **kwargs)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 72, in
__init__
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions if connection
is not None else engine.raw_connection()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 2104,
in raw_connection
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
self.pool.unique_connection, _connection)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 2078,
in _wrap_pool_connect
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions e, dialect,
self)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1401,
in _handle_dbapi_exception_noconnection
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
util.raise_from_cause(newraise, exc_info)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
reraise(type(exception), exception, tb=exc_tb, cause=cause)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 2074,
in _wrap_pool_connect
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return fn()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/pool.py", line 318, in
unique_connection
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
_ConnectionFairy._checkout(self)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/pool.py", line 713, in
_checkout
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions fairy =
_ConnectionRecord.checkout(pool)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/pool.py", line 480, in
checkout
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions rec =
pool._do_get()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/pool.py", line 1060, in
_do_get
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
self._dec_overflow()2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/util/langhelpers.py",
line 60, in __exit__
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
compat.reraise(exc_type, exc_value, exc_tb)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/pool.py", line 1057, in
_do_get2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
self._create_connection()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/pool.py", line 323, in
_create_connection
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
_ConnectionRecord(self)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/pool.py", line 449, in
__init__2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
self.connection = self.__connect()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/pool.py", line 607, in
__connect2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
connection = self.__pool._invoke_creator(self)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/strategies.py", line
97, in connect
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
dialect.connect(*cargs, **cparams)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/default.py", line
385, in connect
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
self.dbapi.connect(*cargs, **cparams)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/pymysql/__init__.py", line 90, in
Connect
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions return
Connection(*args, **kwargs)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 688, in
__init__
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions self.connect()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 906, in
connect
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
self._request_authentication()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 1114, in
_request_authentication
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions auth_packet =
self._read_packet()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 981, in
_read_packet
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
packet.check_error()
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 393, in
check_error
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
err.raise_mysql_exception(self._data)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions File
"/usr/local/lib/python2.7/dist-packages/pymysql/err.py", line 107, in
raise_mysql_exception
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions raise
errorclass(errno, errval)
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
DBNonExistentDatabase: (pymysql.err.InternalError) (1049, u"Unknown database
'nova_cell0'")
2017-01-24 19:51:27.194 TRACE nova.api.openstack.extensions
2017-01-24 19:51:27.202 INFO nova.api.openstack.wsgi
[req-4c779421-1c75-4e0a-b46f-ca2fe4995c25 demo demo] HTTP exception thrown:
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and
attach the Nova API log if possible.
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