Is it possible to close a connection used in one thread from another thread? My program has a locking mechanism, so I can ensure threads don't use their connection while it's closed, but whenever I try to close one thread's connection from another thread, I get errors like:
self.conn.close() File "C:\Program Files\Python24\lib\site-packages\ZODB\Connection.py", line 252, in close self.transaction_manager.unregisterSynch(self) File "C:\Program Files\Python24\Lib\site-packages\transaction\_manager.py", line 169, in unre gisterSynch ws.remove(synch) File "C:\Program Files\Python24\Lib\site-packages\ZODB\utils.py", line 236, in remove del self.data[id(obj)] File "C:\Program Files\Python24\lib\UserDict.py", line 19, in __delitem__ def __delitem__(self, key): del self.data[key] KeyError: 26403280 The reason why I'm doing this is because I'm trying to update the classes of persistent objects loaded into memory. I'm able to load the new classes just fine, but when I try to close the connection at program termination, I get the error: transaction.commit() conn.close() ConnectionStateError: Cannot close a connection joined to a transaction The only way I'm able to avoid this strange error is if I close all connections during the update, but since my update function runs in a different thread, it can't close the connections. Is there a way around this, or am I misunderstanding something? Chris _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
