Score:0

Getting " no such table: cell_mappings" error while installing nova

ba flag

I was following the product documentation "https://docs.openstack.org/nova/2023.1/install/verify.html" after the nova installation is complete on my controller and compute node Iam seeing the " no such table: cell_mappings" while verifying the installation executing the command "nova-status upgrade check".

~# nova-status upgrade check
Modules with known eventlet monkey patching issues were imported prior to eventlet monkey patching: urllib3. This warning can usually be ignored if the caller is only importing and not executing nova code.
Error:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/sqlalchemy/engine/base.py", line 1802, in _execute_context
    self.dialect.do_execute(
  File "/usr/lib/python3/dist-packages/sqlalchemy/engine/default.py", line 732, in do_execute
    cursor.execute(statement, parameters)
sqlite3.OperationalError: no such table: cell_mappings

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/nova/cmd/status.py", line 341, in main
    ret = fn(*fn_args, **fn_kwargs)
  File "/usr/lib/python3/dist-packages/oslo_upgradecheck/upgradecheck.py", line 105, in check
    result = func(self)
  File "/usr/lib/python3/dist-packages/nova/cmd/status.py", line 113, in _check_cellsv2
    cell_mappings = self._get_cell_mappings()
  File "/usr/lib/python3/dist-packages/nova/cmd/status.py", line 220, in _get_cell_mappings
    cell_mappings = cell_mapping_obj.CellMappingList.get_all(ctxt)
  File "/usr/lib/python3/dist-packages/oslo_versionedobjects/base.py", line 184, in wrapper
    result = fn(cls, context, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/nova/objects/cell_mapping.py", line 256, in get_all
    db_mappings = cls._get_all_from_db(context)
  File "/usr/lib/python3/dist-packages/oslo_db/sqlalchemy/enginefacade.py", line 1010, in wrapper
    return fn(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/nova/objects/cell_mapping.py", line 252, in _get_all_from_db
    expression.asc(api_db_models.CellMapping.id)).all()
  File "/usr/lib/python3/dist-packages/sqlalchemy/orm/query.py", line 2759, in all
    return self._iter().all()
  File "/usr/lib/python3/dist-packages/sqlalchemy/orm/query.py", line 2894, in _iter
    result = self.session.execute(
  File "/usr/lib/python3/dist-packages/sqlalchemy/orm/session.py", line 1692, in execute
    result = conn._execute_20(statement, params or {}, execution_options)
  File "/usr/lib/python3/dist-packages/sqlalchemy/engine/base.py", line 1614, in _execute_20
    return meth(self, args_10style, kwargs_10style, execution_options)
  File "/usr/lib/python3/dist-packages/sqlalchemy/sql/elements.py", line 325, in _execute_on_connection
    return connection._execute_clauseelement(
  File "/usr/lib/python3/dist-packages/sqlalchemy/engine/base.py", line 1481, in _execute_clauseelement
    ret = self._execute_context(
  File "/usr/lib/python3/dist-packages/sqlalchemy/engine/base.py", line 1845, in _execute_context
    self._handle_dbapi_exception(
  File "/usr/lib/python3/dist-packages/sqlalchemy/engine/base.py", line 2024, in _handle_dbapi_exception
    util.raise_(newraise, with_traceback=exc_info[2], from_=e)
  File "/usr/lib/python3/dist-packages/sqlalchemy/util/compat.py", line 207, in raise_
    raise exception
  File "/usr/lib/python3/dist-packages/sqlalchemy/engine/base.py", line 1802, in _execute_context
    self.dialect.do_execute(
  File "/usr/lib/python3/dist-packages/sqlalchemy/engine/default.py", line 732, in do_execute
    cursor.execute(statement, parameters)
oslo_db.exception.DBNonExistentTable: (sqlite3.OperationalError) no such table: cell_mappings
[SQL: SELECT cell_mappings.created_at AS cell_mappings_created_at, cell_mappings.updated_at AS cell_mappings_updated_at, cell_mappings.id AS cell_mappings_id, cell_mappings.uuid AS cell_mappings_uuid, cell_mappings.name AS cell_mappings_name, cell_mappings.transport_url AS cell_mappings_transport_url, cell_mappings.database_connection AS cell_mappings_database_connection, cell_mappings.disabled AS cell_mappings_disabled
FROM cell_mappings ORDER BY cell_mappings.id ASC]
(Background on this error at: https://sqlalche.me/e/14/e3q8)

But when I execute the with su command its wokring.

:~# su -s /bin/sh -c "nova-status upgrade check" nova
Modules with known eventlet monkey patching issues were imported prior to eventlet monkey patching: urllib3. This warning can usually be ignored if the caller is only importing and not executing nova code.
+-------------------------------------------+
| Upgrade Check Results                     |
+-------------------------------------------+
| Check: Cells v2                           |
| Result: Success                           |
| Details: None                             |
+-------------------------------------------+
| Check: Placement API                      |
| Result: Success                           |
| Details: None                             |
+-------------------------------------------+
| Check: Cinder API                         |
| Result: Success                           |
| Details: None                             |
+-------------------------------------------+
| Check: Policy File JSON to YAML Migration |
| Result: Success                           |
| Details: None                             |
+-------------------------------------------+
| Check: Older than N-1 computes            |
| Result: Success                           |
| Details: None                             |
+-------------------------------------------+
| Check: hw_machine_type unset              |
| Result: Success                           |
| Details: None                             |
+-------------------------------------------+
| Check: Service User Token Configuration   |
| Result: Success                           |
| Details: None                             |
+-------------------------------------------+

Not sure if it's really an issue or not. I am installing OpenStack zed on Ubuntu 22.04 jammy.

I referred to bug https://bugs.launchpad.net/nova/+bug/1781573 but its resolved in the zed release.Not sure if its the same or diffn

I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.