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Annotation type Annotation details
2 @message
Permission error
I/O error

firebird.driver.types.DatabaseError: I/O error during "CreateFile (open)" operation for file "gh_8429_alias_c"
-Error while trying to open file
-The process cannot access the file because it is being used by another process.

LOG DETAILS:

2025-02-25 10:48:29.757
2025-02-25 10:48:29.757 act_a = <firebird.qa.plugin.Action object at [hex]>
2025-02-25 10:48:29.757 act_b = <firebird.qa.plugin.Action object at [hex]>
2025-02-25 10:48:29.757 act_c = <firebird.qa.plugin.Action object at [hex]>
2025-02-25 10:48:29.757 usr_x = <firebird.qa.plugin.User object at [hex]>
2025-02-25 10:48:29.757 usr_y = <firebird.qa.plugin.User object at [hex]>
2025-02-25 10:48:29.757 usr_z = <firebird.qa.plugin.User object at [hex]>
2025-02-25 10:48:29.757 capsys = <_pytest.capture.CaptureFixture object at [hex]>
2025-02-25 10:48:29.757
2025-02-25 10:48:29.758     @pytest.mark.es_eds
2025-02-25 10:48:29.758     @pytest.mark.encryption
2025-02-25 10:48:29.758     @pytest.mark.version('>=4.0.6')
2025-02-25 10:48:29.758     def test_1(act_a: Action, act_b: Action, act_c: Action, usr_x: User, usr_y: User, usr_z: User, capsys):
2025-02-25 10:48:29.758
2025-02-25 10:48:29.758         dbfile_a = get_filename_by_alias(act_a)
2025-02-25 10:48:29.758         dbfile_b = get_filename_by_alias(act_b)
2025-02-25 10:48:29.758         dbfile_c = get_filename_by_alias(act_c)
2025-02-25 10:48:29.758
2025-02-25 10:48:29.758         dbfile_a.unlink(missing_ok = True)
2025-02-25 10:48:29.758         dbfile_b.unlink(missing_ok = True)
2025-02-25 10:48:29.758         dbfile_c.unlink(missing_ok = True)
2025-02-25 10:48:29.758
2025-02-25 10:48:29.758         with create_database(act_a.db.db_path, user = act_a.db.user, password = act_a.db.password) as con_a, \
2025-02-25 10:48:29.758             create_database(act_b.db.db_path, user = act_b.db.user, password = act_b.db.password) as con_b, \
2025-02-25 10:48:29.758             create_database(act_c.db.db_path, user = act_c.db.user, password = act_c.db.password) as con_c:
2025-02-25 10:48:29.758
2025-02-25 10:48:29.758             sql = f"""
2025-02-25 10:48:29.758                 create procedure sp_a (a_who varchar(31)) returns (o_info varchar(512)) as
2025-02-25 10:48:29.759                 begin
2025-02-25 10:48:29.759                     -- e1-meta.sql:
2025-02-25 10:48:29.759                     execute statement 'select * from sp_b(''' || a_who || ''')' as user '{usr_x.name}' password '{usr_x.password}' on external 'gh_8429_alias_b' into o_info;
2025-02-25 10:48:29.759                     suspend;
2025-02-25 10:48:29.759                 end
2025-02-25 10:48:29.759                 ^
2025-02-25 10:48:29.759                 grant execute on procedure sp_a to public
2025-02-25 10:48:29.759                 ^
2025-02-25 10:48:29.759                 alter database set linger to 0
2025-02-25 10:48:29.759                 ^
2025-02-25 10:48:29.759             """
2025-02-25 10:48:29.759             for x in sql.split('^'):
2025-02-25 10:48:29.759                 if (s := x.strip()):
2025-02-25 10:48:29.759                     con_a.execute_immediate(s)
2025-02-25 10:48:29.759             con_a.commit()
2025-02-25 10:48:29.759
2025-02-25 10:48:29.759             # ..................................................
2025-02-25 10:48:29.759
2025-02-25 10:48:29.759             sql = f"""
2025-02-25 10:48:29.759                 create procedure sp_b (a_who varchar(31)) returns (o_info varchar(512)) as
2025-02-25 10:48:29.760                 begin
2025-02-25 10:48:29.760                     execute statement 'select * from sp_c' as user a_who password a_who on external 'gh_8429_alias_c' into o_info;
2025-02-25 10:48:29.760                     suspend;
2025-02-25 10:48:29.760                 end
2025-02-25 10:48:29.760                 ^
2025-02-25 10:48:29.760                 grant execute on procedure sp_b to public
2025-02-25 10:48:29.760                 ^
2025-02-25 10:48:29.760                 alter database set linger to 0
2025-02-25 10:48:29.760                 ^
2025-02-25 10:48:29.760             """
2025-02-25 10:48:29.760             for x in sql.split('^'):
2025-02-25 10:48:29.760                 if (s := x.strip()):
2025-02-25 10:48:29.760                     con_b.execute_immediate(s)
2025-02-25 10:48:29.760             con_b.commit()
2025-02-25 10:48:29.760
2025-02-25 10:48:29.760             # ..................................................
2025-02-25 10:48:29.760
2025-02-25 10:48:29.760             sql = f"""
2025-02-25 10:48:29.760                 create procedure sp_c returns (o_info varchar(512)) as
2025-02-25 10:48:29.761                 begin
2025-02-25 10:48:29.761                     o_info = lower(current_user);
2025-02-25 10:48:29.761                     -- o_info = lower(rdb$get_context('SYSTEM', 'DB_NAME')) || ':' || lower(current_user);
2025-02-25 10:48:29.761                     suspend;
2025-02-25 10:48:29.761                 end
2025-02-25 10:48:29.761                 ^
2025-02-25 10:48:29.761                 grant execute on procedure sp_c to public
2025-02-25 10:48:29.761                 ^
2025-02-25 10:48:29.761                 alter database set linger to 0
2025-02-25 10:48:29.761                 ^
2025-02-25 10:48:29.761             """
2025-02-25 10:48:29.761             for x in sql.split('^'):
2025-02-25 10:48:29.761                 if (s := x.strip()):
2025-02-25 10:48:29.761                     con_c.execute_immediate(s)
2025-02-25 10:48:29.761             con_c.commit()
2025-02-25 10:48:29.761
2025-02-25 10:48:29.761             ############################################
2025-02-25 10:48:29.761             ###   E N C R Y P T    D A T A B A S E   ###
2025-02-25 10:48:29.761             ############################################
2025-02-25 10:48:29.762 >           run_encr_decr(act_c, 'encrypt', MAX_WAITING_ENCR_FINISH, capsys)
2025-02-25 10:48:29.762
2025-02-25 10:48:29.762 tests\bugs\gh_8429_test.py:272:
2025-02-25 10:48:29.762 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2025-02-25 10:48:29.762
2025-02-25 10:48:29.762 act = <firebird.qa.plugin.Action object at [hex]>, mode = 'encrypt'
2025-02-25 10:48:29.762 max_wait_encr_thread_finish = 10000
2025-02-25 10:48:29.762 capsys = <_pytest.capture.CaptureFixture object at [hex]>
2025-02-25 10:48:29.762
2025-02-25 10:48:29.762     def run_encr_decr(act: Action, mode, max_wait_encr_thread_finish, capsys):
2025-02-25 10:48:29.762         if mode == 'encrypt':
2025-02-25 10:48:29.762             # See letter from Alex, 15.12.2023 16:16 demo-plugin can not transfer named key over network.
2025-02-25 10:48:29.762             # Because of that, we have to use 'ALTER DATABASE ENCRYPT WITH <plugin>'  _WITHOUT_ adding 'key "{ENCRYPTION_KEY}"'.
2025-02-25 10:48:29.762             # ::: NB ::: One need to be sure that $FB_HOME/plugins.conf contains following lines:
2025-02-25 10:48:29.762             # Plugin = KH2 {
2025-02-25 10:48:29.762             #     Module = $(dir_plugins)/fbSampleKeyHolder
2025-02-25 10:48:29.762             #     RegisterName = fbSampleKeyHolder
2025-02-25 10:48:29.762             #     Config = KH2
2025-02-25 10:48:29.762             # }
2025-02-25 10:48:29.763             #  Config = KH2 {
2025-02-25 10:48:29.763             #     Auto = false
2025-02-25 10:48:29.763             # }
2025-02-25 10:48:29.763             # Otherwise error will raise:
2025-02-25 10:48:29.763             # unsuccessful metadata update
2025-02-25 10:48:29.763             # -ALTER DATABASE failed
2025-02-25 10:48:29.763             # -Missing database encryption key for your attachment
2025-02-25 10:48:29.763             # -Plugin fbSampleDbCrypt:
2025-02-25 10:48:29.763             # -Crypt key not set
2025-02-25 10:48:29.763             #
2025-02-25 10:48:29.763             alter_db_sttm = f'alter database encrypt with "{ENCRYPTION_PLUGIN}"' # <<< ::: NB ::: DO NOT add '... key "{ENCRYPTION_KEY}"' here!
2025-02-25 10:48:29.763             wait_for_state = 'Database encrypted'
2025-02-25 10:48:29.763         elif mode == 'decrypt':
2025-02-25 10:48:29.763             alter_db_sttm = 'alter database decrypt'
2025-02-25 10:48:29.763             wait_for_state = 'Database not encrypted'
2025-02-25 10:48:29.763
2025-02-25 10:48:29.763
2025-02-25 10:48:29.763         e_thread_finished = False
2025-02-25 10:48:29.763
2025-02-25 10:48:29.764         # 0 = non crypted;
2025-02-25 10:48:29.764         # 1 = has been encrypted;
2025-02-25 10:48:29.764         # 2 = is DEcrypting;
2025-02-25 10:48:29.764         # 3 = is Encrypting;
2025-02-25 10:48:29.764         #
2025-02-25 10:48:29.764         REQUIRED_CRYPT_STATE = 1 if mode == 'encrypt' else 0
2025-02-25 10:48:29.764         current_crypt_state = -1
2025-02-25 10:48:29.764         d1 = py_dt.timedelta(0)
2025-02-25 10:48:29.764 >       with act.db.connect() as con:
2025-02-25 10:48:29.764
2025-02-25 10:48:29.764 tests\bugs\gh_8429_test.py:147:
2025-02-25 10:48:29.764 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2025-02-25 10:48:29.764
2025-02-25 10:48:29.764 database = 'gh_8429_alias_c'
2025-02-25 10:48:29.764
2025-02-25 10:48:29.764     def connect(database: str, *, user: str=None, password: str=None, role: str=None,
2025-02-25 10:48:29.764                 no_gc: bool=None, no_db_triggers: bool=None, dbkey_scope: DBKeyScope=None,
2025-02-25 10:48:29.764                 crypt_callback: iCryptKeyCallbackImpl=None, charset: str=None,
2025-02-25 10:48:29.764                 auth_plugin_list: str=None, session_time_zone: str=None) -> Connection:
2025-02-25 10:48:29.764         """Establishes a connection to the database.
2025-02-25 10:48:29.765
2025-02-25 10:48:29.765         Arguments:
2025-02-25 10:48:29.765             database: DSN or Database configuration name.
2025-02-25 10:48:29.765             user: User name.
2025-02-25 10:48:29.765             password: User password.
2025-02-25 10:48:29.765             role: User role.
2025-02-25 10:48:29.765             no_gc: Do not perform garbage collection for this connection.
2025-02-25 10:48:29.765             no_db_triggers: Do not execute database triggers for this connection.
2025-02-25 10:48:29.765             dbkey_scope: DBKEY scope override for connection.
2025-02-25 10:48:29.765             crypt_callback: Callback that provides encryption key for the database.
2025-02-25 10:48:29.765             charset: Character set for connection.
2025-02-25 10:48:29.765             auth_plugin_list: List of authentication plugins override
2025-02-25 10:48:29.765             session_time_zone: Session time zone [Firebird 4]
2025-02-25 10:48:29.765
2025-02-25 10:48:29.765         Hooks:
2025-02-25 10:48:29.765             Event `.ConnectionHook.ATTACH_REQUEST`: Executed after all parameters
2025-02-25 10:48:29.765             are preprocessed and before `Connection` is created. Hook
2025-02-25 10:48:29.765             must have signature::
2025-02-25 10:48:29.766
2025-02-25 10:48:29.766                 hook_func(dsn: str, dpb: bytes) -> Optional[Connection]
2025-02-25 10:48:29.766
2025-02-25 10:48:29.766             Hook may return `Connection` instance or None.
2025-02-25 10:48:29.766             First instance returned by any hook will become the return value
2025-02-25 10:48:29.766             of this function and other hooks are not called.
2025-02-25 10:48:29.766
2025-02-25 10:48:29.766             Event `.ConnectionHook.ATTACHED`: Executed before `Connection` instance is
2025-02-25 10:48:29.766             returned. Hook must have signature::
2025-02-25 10:48:29.766
2025-02-25 10:48:29.766                 hook_func(connection: Connection) -> None
2025-02-25 10:48:29.766
2025-02-25 10:48:29.766             Any value returned by hook is ignored.
2025-02-25 10:48:29.766         """
2025-02-25 10:48:29.766         db_config = driver_config.get_database(database)
2025-02-25 10:48:29.766         if db_config is None:
2025-02-25 10:48:29.766             db_config = driver_config.db_defaults
2025-02-25 10:48:29.766         else:
2025-02-25 10:48:29.766             database = db_config.database.value
2025-02-25 10:48:29.767         if db_config.server.value is None:
2025-02-25 10:48:29.767             srv_config = driver_config.server_defaults
2025-02-25 10:48:29.767         else:
2025-02-25 10:48:29.767             srv_config = driver_config.get_server(db_config.server.value)
2025-02-25 10:48:29.767             if srv_config is None:
2025-02-25 10:48:29.767                 raise ValueError(f"Configuration for server '{db_config.server.value}' not found")
2025-02-25 10:48:29.767         if user is None:
2025-02-25 10:48:29.767             user = db_config.user.value
2025-02-25 10:48:29.767             if user is None:
2025-02-25 10:48:29.767                 user = srv_config.user.value
2025-02-25 10:48:29.767         if password is None:
2025-02-25 10:48:29.767             password = db_config.password.value
2025-02-25 10:48:29.767             if password is None:
2025-02-25 10:48:29.767                 password = srv_config.password.value
2025-02-25 10:48:29.767         if role is None:
2025-02-25 10:48:29.767             role = db_config.role.value
2025-02-25 10:48:29.767         if charset is None:
2025-02-25 10:48:29.767             charset = db_config.charset.value
2025-02-25 10:48:29.767         if charset:
2025-02-25 10:48:29.768             charset = charset.upper()
2025-02-25 10:48:29.768         if auth_plugin_list is None:
2025-02-25 10:48:29.768             auth_plugin_list = db_config.auth_plugin_list.value
2025-02-25 10:48:29.768         if session_time_zone is None:
2025-02-25 10:48:29.768             session_time_zone = db_config.session_time_zone.value
2025-02-25 10:48:29.768         dsn = _connect_helper(db_config.dsn.value, srv_config.host.value, srv_config.port.value,
2025-02-25 10:48:29.768                               database, db_config.protocol.value)
2025-02-25 10:48:29.768         dpb = DPB(user=user, password=password, role=role, trusted_auth=db_config.trusted_auth.value,
2025-02-25 10:48:29.768                   sql_dialect=db_config.sql_dialect.value, timeout=db_config.timeout.value,
2025-02-25 10:48:29.768                   charset=charset, cache_size=db_config.cache_size.value,
2025-02-25 10:48:29.768                   no_linger=db_config.no_linger.value, utf8filename=db_config.utf8filename.value,
2025-02-25 10:48:29.768                   no_gc=no_gc, no_db_triggers=no_db_triggers, dbkey_scope=dbkey_scope,
2025-02-25 10:48:29.768                   dummy_packet_interval=db_config.dummy_packet_interval.value,
2025-02-25 10:48:29.768                   config=db_config.config.value, auth_plugin_list=auth_plugin_list,
2025-02-25 10:48:29.768                   session_time_zone=session_time_zone, set_bind=db_config.set_bind.value,
2025-02-25 10:48:29.768                   decfloat_round=db_config.decfloat_round.value,
2025-02-25 10:48:29.768                   decfloat_traps=db_config.decfloat_traps.value,
2025-02-25 10:48:29.768                   parallel_workers=db_config.parallel_workers.value)
2025-02-25 10:48:29.768 >       return __make_connection(False, dsn, db_config.utf8filename.value, dpb.get_buffer(),
2025-02-25 10:48:29.768                                  db_config.sql_dialect.value, charset, crypt_callback)
2025-02-25 10:48:29.769
2025-02-25 10:48:29.769 C:\Python3x\Lib\site-packages\firebird\driver\core.py:2149:
2025-02-25 10:48:29.769 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2025-02-25 10:48:29.769
2025-02-25 10:48:29.769 create = False, dsn = 'localhost/33337:gh_8429_alias_c', utf8filename = False
2025-02-25 10:48:29.769 dpb = b'\x01\x1c\x06SYSDBA\x1d\tmasterkey?\x04\x03\x00\x00\x00', sql_dialect = 3
2025-02-25 10:48:29.769 charset = None, crypt_callback = None
2025-02-25 10:48:29.769
2025-02-25 10:48:29.769     def __make_connection(create: bool, dsn: str, utf8filename: bool, dpb: bytes,
2025-02-25 10:48:29.769                           sql_dialect: int, charset: str,
2025-02-25 10:48:29.769                           crypt_callback: iCryptKeyCallbackImpl) -> Connection:
2025-02-25 10:48:29.769         with a.get_api().master.get_dispatcher() as provider:
2025-02-25 10:48:29.769             if crypt_callback is not None:
2025-02-25 10:48:29.769                 provider.set_dbcrypt_callback(crypt_callback)
2025-02-25 10:48:29.769             if create:
2025-02-25 10:48:29.769                 att = provider.create_database(dsn, dpb, 'utf-8' if utf8filename else FS_ENCODING)
2025-02-25 10:48:29.769                 con = Connection(att, dsn, dpb, sql_dialect, charset)
2025-02-25 10:48:29.769             else:
2025-02-25 10:48:29.769                 con = None
2025-02-25 10:48:29.769                 for hook in get_callbacks(ConnectionHook.ATTACH_REQUEST, Connection):
2025-02-25 10:48:29.769                     try:
2025-02-25 10:48:29.770                         con = hook(dsn, dpb)
2025-02-25 10:48:29.770                     except Exception as e:
2025-02-25 10:48:29.770                         raise InterfaceError("Error in DATABASE_ATTACH_REQUEST hook.", *e.args) from e
2025-02-25 10:48:29.770                     if con is not None:
2025-02-25 10:48:29.770                         break
2025-02-25 10:48:29.770                 if con is None:
2025-02-25 10:48:29.770 >                   att = provider.attach_database(dsn, dpb, 'utf-8' if utf8filename else FS_ENCODING)
2025-02-25 10:48:29.770
2025-02-25 10:48:29.770 C:\Python3x\Lib\site-packages\firebird\driver\core.py:2064:
2025-02-25 10:48:29.770 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2025-02-25 10:48:29.770
2025-02-25 10:48:29.770 self = <firebird.driver.interfaces.iProvider object at [hex]>
2025-02-25 10:48:29.770 filename = 'localhost/33337:gh_8429_alias_c'
2025-02-25 10:48:29.770 dpb = b'\x01\x1c\x06SYSDBA\x1d\tmasterkey?\x04\x03\x00\x00\x00'
2025-02-25 10:48:29.770 encoding = 'utf-8'
2025-02-25 10:48:29.770
2025-02-25 10:48:29.770     def attach_database(self, filename: str, dpb: Optional[bytes] = None, encoding: str = 'ascii') -> iAttachment:
2025-02-25 10:48:29.770         "Replaces `isc_attach_database()`"
2025-02-25 10:48:29.770         result = self.vtable.attachDatabase(self, self.status, filename.encode(encoding),
2025-02-25 10:48:29.770                                             0 if dpb is None else len(dpb), dpb)
2025-02-25 10:48:29.771 >       self._check()
2025-02-25 10:48:29.771
2025-02-25 10:48:29.771 C:\Python3x\Lib\site-packages\firebird\driver\interfaces.py:1295:
2025-02-25 10:48:29.771 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
2025-02-25 10:48:29.771
2025-02-25 10:48:29.771 self = <firebird.driver.interfaces.iProvider object at [hex]>
2025-02-25 10:48:29.771
2025-02-25 10:48:29.771     def _check(self) -> None:
2025-02-25 10:48:29.771         state = self.status.get_state()
2025-02-25 10:48:29.771         if StateFlag.ERRORS in state:
2025-02-25 10:48:29.771 >           raise self.__report(DatabaseError, self.status.get_errors())
2025-02-25 10:48:29.771 E           firebird.driver.types.DatabaseError: I/O error during "CreateFile (open)" operation for file "gh_8429_alias_c"
2025-02-25 10:48:29.771 E           -Error while trying to open file
2025-02-25 10:48:29.771 E           -The process cannot access the file because it is being used by another process.
2025-02-25 10:48:29.771
2025-02-25 10:48:29.771 C:\Python3x\Lib\site-packages\firebird\driver\interfaces.py:113: DatabaseError
2025-02-25 10:48:29.771 ---------------------------- Captured stdout setup ----------------------------
2025-02-25 10:48:29.771 Creating db: localhost:H:\QA\temp\qa2024.tmp\fbqa\test_11705\test.fdb [page_size=None, sql_dialect=None, charset='NONE', user=SYSDBA, password=masterkey]
2025-02-25 10:48:29.771 CREATE user: TMP_8429_X PLUGIN: Srp
2025-02-25 10:48:29.771 CREATE user: TMP_8429_Y PLUGIN: Srp
2025-02-25 10:48:29.772 CREATE user: TMP_8429_Z PLUGIN: Srp
2025-02-25 10:48:29.772 -------------------------- Captured stdout teardown ---------------------------
2025-02-25 10:48:29.772 DROP user: TMP_8429_Z PLUGIN: Srp
2025-02-25 10:48:29.772 DROP user: TMP_8429_Y PLUGIN: Srp
2025-02-25 10:48:29.772 DROP user: TMP_8429_X PLUGIN: Srp
3 #text
act_a = <firebird.qa.plugin.Action pytest object at [hex]>
act_b = <firebird.qa.plugin.Action pytest object at [hex]>
act_c = <firebird.qa.plugin.Action pytest object at [hex]>
usr_x = <firebird.qa.plugin.User pytest object at [hex]>
usr_y = <firebird.qa.plugin.User pytest object at [hex]>
usr_z = <firebird.qa.plugin.User pytest object at [hex]>
capsys = <_pytest.capture.CaptureFixture pytest object at [hex]>

    @pytest.mark.es_eds
    @pytest.mark.encryption
    @pytest.mark.version('>=4.0.6')
    def test_1(act_a: Action, act_b: Action, act_c: Action, usr_x: User, usr_y: User, usr_z: User, capsys):
    
        dbfile_a = get_filename_by_alias(act_a)
        dbfile_b = get_filename_by_alias(act_b)
        dbfile_c = get_filename_by_alias(act_c)
    
        dbfile_a.unlink(missing_ok = True)
        dbfile_b.unlink(missing_ok = True)
        dbfile_c.unlink(missing_ok = True)
    
        with create_database(act_a.db.db_path, user = act_a.db.user, password = act_a.db.password) as con_a, \
            create_database(act_b.db.db_path, user = act_b.db.user, password = act_b.db.password) as con_b, \
            create_database(act_c.db.db_path, user = act_c.db.user, password = act_c.db.password) as con_c:
    
            sql = f"""
                create procedure sp_a (a_who varchar(31)) returns (o_info varchar(512)) as
                begin
                    -- e1-meta.sql:
                    execute statement 'select * from sp_b(''' || a_who || ''')' as user '{usr_x.name}' password '{usr_x.password}' on external 'gh_8429_alias_b' into o_info;
                    suspend;
                end
                ^
                grant execute on procedure sp_a to public
                ^
                alter database set linger to 0
                ^
            """
            for x in sql.split('^'):
                if (s := x.strip()):
                    con_a.execute_immediate(s)
            con_a.commit()
    
            # ..................................................
    
            sql = f"""
                create procedure sp_b (a_who varchar(31)) returns (o_info varchar(512)) as
                begin
                    execute statement 'select * from sp_c' as user a_who password a_who on external 'gh_8429_alias_c' into o_info;
                    suspend;
                end
                ^
                grant execute on procedure sp_b to public
                ^
                alter database set linger to 0
                ^
            """
            for x in sql.split('^'):
                if (s := x.strip()):
                    con_b.execute_immediate(s)
            con_b.commit()
    
            # ..................................................
    
            sql = f"""
                create procedure sp_c returns (o_info varchar(512)) as
                begin
                    o_info = lower(current_user);
                    -- o_info = lower(rdb$get_context('SYSTEM', 'DB_NAME')) || ':' || lower(current_user);
                    suspend;
                end
                ^
                grant execute on procedure sp_c to public
                ^
                alter database set linger to 0
                ^
            """
            for x in sql.split('^'):
                if (s := x.strip()):
                    con_c.execute_immediate(s)
            con_c.commit()
    
            ############################################
            ###   E N C R Y P T    D A T A B A S E   ###
            ############################################
>           run_encr_decr(act_c, 'encrypt', MAX_WAITING_ENCR_FINISH, capsys)

tests\bugs\gh_8429_test.py:272: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

act = <firebird.qa.plugin.Action pytest object at [hex]>, mode = 'encrypt'
max_wait_encr_thread_finish = 10000
capsys = <_pytest.capture.CaptureFixture pytest object at [hex]>

    def run_encr_decr(act: Action, mode, max_wait_encr_thread_finish, capsys):
        if mode == 'encrypt':
            # See letter from Alex, 15.12.2023 16:16 demo-plugin can not transfer named key over network.
            # Because of that, we have to use 'ALTER DATABASE ENCRYPT WITH <plugin>'  _WITHOUT_ adding 'key "{ENCRYPTION_KEY}"'.
            # ::: NB ::: One need to be sure that $FB_HOME/plugins.conf contains following lines:
            # Plugin = KH2 {
            #     Module = $(dir_plugins)/fbSampleKeyHolder
            #     RegisterName = fbSampleKeyHolder
            #     Config = KH2
            # }
            #  Config = KH2 {
            #     Auto = false
            # }
            # Otherwise error will raise:
            # unsuccessful metadata update
            # -ALTER DATABASE failed
            # -Missing database encryption key for your attachment
            # -Plugin fbSampleDbCrypt:
            # -Crypt key not set
            #
            alter_db_sttm = f'alter database encrypt with "{ENCRYPTION_PLUGIN}"' # <<< ::: NB ::: DO NOT add '... key "{ENCRYPTION_KEY}"' here!
            wait_for_state = 'Database encrypted'
        elif mode == 'decrypt':
            alter_db_sttm = 'alter database decrypt'
            wait_for_state = 'Database not encrypted'
    
    
        e_thread_finished = False
    
        # 0 = non crypted;
        # 1 = has been encrypted;
        # 2 = is DEcrypting;
        # 3 = is Encrypting;
        #
        REQUIRED_CRYPT_STATE = 1 if mode == 'encrypt' else 0
        current_crypt_state = -1
        d1 = py_dt.timedelta(0)
>       with act.db.connect() as con:

tests\bugs\gh_8429_test.py:147: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

database = 'gh_8429_alias_c'

    def connect(database: str, *, user: str=None, password: str=None, role: str=None,
                no_gc: bool=None, no_db_triggers: bool=None, dbkey_scope: DBKeyScope=None,
                crypt_callback: iCryptKeyCallbackImpl=None, charset: str=None,
                auth_plugin_list: str=None, session_time_zone: str=None) -> Connection:
        """Establishes a connection to the database.
    
        Arguments:
            database: DSN or Database configuration name.
            user: User name.
            password: User password.
            role: User role.
            no_gc: Do not perform garbage collection for this connection.
            no_db_triggers: Do not execute database triggers for this connection.
            dbkey_scope: DBKEY scope override for connection.
            crypt_callback: Callback that provides encryption key for the database.
            charset: Character set for connection.
            auth_plugin_list: List of authentication plugins override
            session_time_zone: Session time zone [Firebird 4]
    
        Hooks:
            Event `.ConnectionHook.ATTACH_REQUEST`: Executed after all parameters
            are preprocessed and before `Connection` is created. Hook
            must have signature::
    
                hook_func(dsn: str, dpb: bytes) -> Optional[Connection]
    
            Hook may return `Connection` instance or None.
            First instance returned by any hook will become the return value
            of this function and other hooks are not called.
    
            Event `.ConnectionHook.ATTACHED`: Executed before `Connection` instance is
            returned. Hook must have signature::
    
                hook_func(connection: Connection) -> None
    
            Any value returned by hook is ignored.
        """
        db_config = driver_config.get_database(database)
        if db_config is None:
            db_config = driver_config.db_defaults
        else:
            database = db_config.database.value
        if db_config.server.value is None:
            srv_config = driver_config.server_defaults
        else:
            srv_config = driver_config.get_server(db_config.server.value)
            if srv_config is None:
                raise ValueError(f"Configuration for server '{db_config.server.value}' not found")
        if user is None:
            user = db_config.user.value
            if user is None:
                user = srv_config.user.value
        if password is None:
            password = db_config.password.value
            if password is None:
                password = srv_config.password.value
        if role is None:
            role = db_config.role.value
        if charset is None:
            charset = db_config.charset.value
        if charset:
            charset = charset.upper()
        if auth_plugin_list is None:
            auth_plugin_list = db_config.auth_plugin_list.value
        if session_time_zone is None:
            session_time_zone = db_config.session_time_zone.value
        dsn = _connect_helper(db_config.dsn.value, srv_config.host.value, srv_config.port.value,
                              database, db_config.protocol.value)
        dpb = DPB(user=user, password=password, role=role, trusted_auth=db_config.trusted_auth.value,
                  sql_dialect=db_config.sql_dialect.value, timeout=db_config.timeout.value,
                  charset=charset, cache_size=db_config.cache_size.value,
                  no_linger=db_config.no_linger.value, utf8filename=db_config.utf8filename.value,
                  no_gc=no_gc, no_db_triggers=no_db_triggers, dbkey_scope=dbkey_scope,
                  dummy_packet_interval=db_config.dummy_packet_interval.value,
                  config=db_config.config.value, auth_plugin_list=auth_plugin_list,
                  session_time_zone=session_time_zone, set_bind=db_config.set_bind.value,
                  decfloat_round=db_config.decfloat_round.value,
                  decfloat_traps=db_config.decfloat_traps.value,
                  parallel_workers=db_config.parallel_workers.value)
>       return __make_connection(False, dsn, db_config.utf8filename.value, dpb.get_buffer(),
                                 db_config.sql_dialect.value, charset, crypt_callback)

C:\Python3x\Lib\site-packages\firebird\driver\core.py:2149: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

create = False, dsn = 'localhost/33337:gh_8429_alias_c', utf8filename = False
dpb = b'\x01\x1c\x06SYSDBA\x1d\tmasterkey?\x04\x03\x00\x00\x00', sql_dialect = 3
charset = None, crypt_callback = None

    def __make_connection(create: bool, dsn: str, utf8filename: bool, dpb: bytes,
                          sql_dialect: int, charset: str,
                          crypt_callback: iCryptKeyCallbackImpl) -> Connection:
        with a.get_api().master.get_dispatcher() as provider:
            if crypt_callback is not None:
                provider.set_dbcrypt_callback(crypt_callback)
            if create:
                att = provider.create_database(dsn, dpb, 'utf-8' if utf8filename else FS_ENCODING)
                con = Connection(att, dsn, dpb, sql_dialect, charset)
            else:
                con = None
                for hook in get_callbacks(ConnectionHook.ATTACH_REQUEST, Connection):
                    try:
                        con = hook(dsn, dpb)
                    except Exception as e:
                        raise InterfaceError("Error in DATABASE_ATTACH_REQUEST hook.", *e.args) from e
                    if con is not None:
                        break
                if con is None:
>                   att = provider.attach_database(dsn, dpb, 'utf-8' if utf8filename else FS_ENCODING)

C:\Python3x\Lib\site-packages\firebird\driver\core.py:2064: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <firebird.driver.interfaces.iProvider pytest object at [hex]>
filename = 'localhost/33337:gh_8429_alias_c'
dpb = b'\x01\x1c\x06SYSDBA\x1d\tmasterkey?\x04\x03\x00\x00\x00'
encoding = 'utf-8'

    def attach_database(self, filename: str, dpb: Optional[bytes] = None, encoding: str = 'ascii') -> iAttachment:
        "Replaces `isc_attach_database()`"
        result = self.vtable.attachDatabase(self, self.status, filename.encode(encoding),
                                            0 if dpb is None else len(dpb), dpb)
>       self._check()

C:\Python3x\Lib\site-packages\firebird\driver\interfaces.py:1295: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <firebird.driver.interfaces.iProvider pytest object at [hex]>

    def _check(self) -> None:
        state = self.status.get_state()
        if StateFlag.ERRORS in state:
>           raise self.__report(DatabaseError, self.status.get_errors())
E           firebird.driver.types.DatabaseError: I/O error during "CreateFile (open)" operation for file "gh_8429_alias_c"
E           -Error while trying to open file
E           -The process cannot access the file because it is being used by another process.

C:\Python3x\Lib\site-packages\firebird\driver\interfaces.py:113: DatabaseError
Full history of outcomes and elapsed time, ms:
NN SNAP_INFO CS_outcome SS_outcome CS_run_time SS_run_time CS_run_beg CS_run_end SS_run_beg SS_run_end
1 5.0.3.1657 2025.06.20 8b4d2 P P 3236 2072 2025.06.26 11:23:08.611 2025.06.26 11:23:11.847 2025.06.26 10:21:47.857 2025.06.26 10:21:49.929
2 5.0.3.1657 2025.06.19 4bd4c P P 3436 2079 2025.06.20 05:27:22.515 2025.06.20 05:27:25.951 2025.06.20 04:26:06.506 2025.06.20 04:26:08.585
3 5.0.3.1657 2025.06.11 dae6f P P 3221 2079 2025.06.19 10:58:50.116 2025.06.19 10:58:53.337 2025.06.19 09:57:30.667 2025.06.19 09:57:32.746
4 5.0.3.1657 2025.06.10 dbc92 P P 3387 2082 2025.06.11 08:44:59.711 2025.06.11 08:45:03.098 2025.06.11 07:43:27.145 2025.06.11 07:43:29.227
5 5.0.3.1656 2025.06.05 00512 P P 3275 2062 2025.06.10 10:00:30.093 2025.06.10 10:00:33.368 2025.06.10 08:58:32.900 2025.06.10 08:58:34.962
6 5.0.3.1656 2025.05.20 c4b11 P P 3232 2096 2025.06.03 09:47:23.131 2025.06.03 09:47:26.363 2025.06.03 08:46:36.220 2025.06.03 08:46:38.316
7 5.0.3.1652 2025.05.13 f51c6 P P 3236 2057 2025.05.21 06:28:21.687 2025.05.21 06:28:24.923 2025.05.21 05:27:51.877 2025.05.21 05:27:53.934
8 5.0.3.1651 2025.05.08 ee9d2 P E 3253 2396 2025.05.13 06:41:01.273 2025.05.13 06:41:04.526 2025.05.13 05:21:59.072 2025.05.13 05:22:01.468
9 5.0.3.1651 2025.05.04 3d914 P E 3251 2413 2025.05.09 04:30:04.526 2025.05.09 04:30:07.777 2025.05.09 03:10:56.910 2025.05.09 03:10:59.323
10 5.0.3.1651 2025.04.30 141ef P E 3398 2236 2025.05.02 04:37:40.731 2025.05.02 04:37:44.129 2025.05.02 03:18:50.309 2025.05.02 03:18:52.545
11 5.0.3.1650 2025.04.30 6253f P E 3242 2405 2025.05.01 04:36:44.257 2025.05.01 04:36:47.499 2025.05.01 03:17:46.516 2025.05.01 03:17:48.921
12 5.0.3.1650 2025.04.28 4cbff P E 3218 2235 2025.04.30 04:35:45.300 2025.04.30 04:35:48.518 2025.04.30 03:16:59.574 2025.04.30 03:17:01.809
13 5.0.3.1649 2025.04.21 5b2d0 P E 3292 2445 2025.04.26 10:09:43.342 2025.04.26 10:09:46.634 2025.04.26 08:49:59.557 2025.04.26 08:50:02.002
14 5.0.3.1648 2025.04.18 2f4c5 P P 3266 2113 2025.04.20 04:20:57.274 2025.04.20 04:21:00.540 2025.04.20 03:19:25.150 2025.04.20 03:19:27.263
15 5.0.3.1635 2025.04.03 f6bd1 P E 3244 2398 2025.04.18 06:48:37.831 2025.04.18 06:48:41.075 2025.04.18 05:29:09.722 2025.04.18 05:29:12.120
16 5.0.3.1635 2025.03.31 22ec6 P E 3284 2399 2025.04.03 09:54:28.042 2025.04.03 09:54:31.326 2025.04.03 08:34:40.163 2025.04.03 08:34:42.562
17 5.0.3.1633 2025.03.28 3123a P E 3264 2400 2025.03.31 09:52:56.160 2025.03.31 09:52:59.424 2025.03.31 08:33:16.212 2025.03.31 08:33:18.612
18 5.0.3.1633 2025.03.27 e0fb8 P E 3426 2426 2025.03.28 10:24:36.213 2025.03.28 10:24:39.639 2025.03.28 09:01:10.439 2025.03.28 09:01:12.865
19 5.0.3.1631 2025.03.25 bda65 P P 3453 2173 2025.03.27 10:05:07.048 2025.03.27 10:05:10.501 2025.03.27 08:59:53.029 2025.03.27 08:59:55.202
20 5.0.3.1631 2025.03.21 1925b P P 3459 2268 2025.03.25 06:39:09.577 2025.03.25 06:39:13.036 2025.03.25 05:33:45.618 2025.03.25 05:33:47.886
21 5.0.3.1629 2025.03.18 506d7 P P 3328 2214 2025.03.20 09:39:26.940 2025.03.20 09:39:30.268 2025.03.20 08:33:52.512 2025.03.20 08:33:54.726
22 5.0.3.1628 2025.03.14 16d05 P P 3333 2113 2025.03.18 09:33:34.800 2025.03.18 09:33:38.133 2025.03.18 08:29:34.983 2025.03.18 08:29:37.096
23 5.0.3.1627 2025.02.26 4e218 P P 3408 2253 2025.03.13 09:52:52.721 2025.03.13 09:52:56.129 2025.03.13 08:47:06.915 2025.03.13 08:47:09.168
24 5.0.3.1624 2025.02.25 dc3b2 P P 3132 2101 2025.02.26 15:25:07.404 2025.02.26 15:25:10.536 2025.02.26 14:20:03.476 2025.02.26 14:20:05.577
25 5.0.2.1615 2025.02.20 4a726 P F 2842 1393 2025.02.25 08:39:16.257 2025.02.25 08:39:19.099 2025.02.25 07:17:36.371 2025.02.25 07:17:37.764

Elapsed time, ms. Chart for last 25 runs:

Last commits information (all timestamps in UTC):