I am having some database problems (attached below), any recommendations to either recover from or fix these from happening? I am not sure why it would work OK at first, and then at some point run bad... Any recommendations on a technique to debug this would be much appreciated.
Full source code of the project can be browsed here: http://git.braydon.com/gitweb.cgi?p=sparrow;a=tree;h=refs/heads/master;hb=refs/heads/master For an idea of the project (screencast... although slightly old): http://interfce.com/videos/sparrow.html The site this is coming from (live): http://mochilla.com/ [05/Jun/2008:22:16:15] HTTP Traceback (most recent call last): File "/var/lib/python-support/python2.5/cherrypy/_cprequest.py", line 550, in respond cherrypy.response.body = self.handler() File "/var/lib/python-support/python2.5/cherrypy/_cpdispatch.py", line 24, in __call__ return self.callable(*self.args, **self.kwargs) File "/var/local/mochilla/sparrow/http.py", line 38, in default return render(args, kwargs, location_st) File "/var/local/mochilla/sparrow/templates.py", line 363, in render return render_skeleton(location, location_st, kwargs) File "/var/local/mochilla/sparrow/templates.py", line 266, in render_skeleton body, cmds_array = compile_templates(location, kwargs) File "/var/local/mochilla/sparrow/templates.py", line 192, in compile_templates doc = get_uri(location) File "/var/local/mochilla/sparrow/uri.py", line 31, in get_uri selected = db.session.query(TemplateRelation).filter_by(location=uri)[0] File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 844, in __getitem__ return list(self[item:item+1])[0] IndexError: list index out of range 127.0.0.1 - - [05/Jun/2008:22:15:44] "GET / HTTP/1.0" 500 3293 "" "" [05/Jun/2008:22:15:59] HTTP Traceback (most recent call last): File "/var/lib/python-support/python2.5/cherrypy/_cprequest.py", line 550, in respond cherrypy.response.body = self.handler() File "/var/lib/python-support/python2.5/cherrypy/_cpdispatch.py", line 24, in __call__ return self.callable(*self.args, **self.kwargs) File "/var/local/mochilla/sparrow/http.py", line 38, in default return render(args, kwargs, location_st) File "/var/local/mochilla/sparrow/templates.py", line 363, in render return render_skeleton(location, location_st, kwargs) File "/var/local/mochilla/sparrow/templates.py", line 266, in render_skeleton body, cmds_array = compile_templates(location, kwargs) File "/var/local/mochilla/sparrow/templates.py", line 252, in compile_templates data = search_list(doc.oid, doc.objects, location=location, locations=locations, cmds_array=doc.cmds_array, kwargs=kwargs) File "/var/local/mochilla/sparrow/templates.py", line 172, in search_list objects = object_children(object_oid) File "/var/local/mochilla/sparrow/objects.py", line 39, in object_children parent = get_object(oid) File "/var/local/mochilla/sparrow/objects.py", line 31, in get_object selected = db.session.query(Objects).filter_by(oid=oid).one() File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 927, in one raise exceptions.InvalidRequestError('No rows returned for one()') InvalidRequestError: No rows returned for one() 127.0.0.1 - - [05/Jun/2008:18:15:08] "GET / HTTP/1.0" 200 24400 "" "" [05/Jun/2008:18:15:09] HTTP Traceback (most recent call last): File "/var/lib/python-support/python2.5/cherrypy/_cprequest.py", line 550, in respond cherrypy.response.body = self.handler() File "/var/lib/python-support/python2.5/cherrypy/_cpdispatch.py", line 24, in __call__ return self.callable(*self.args, **self.kwargs) File "/var/lib/python-support/python2.5/cherrypy/_cptools.py", line 140, in handle_func handled = self.callable(*args, **self._merged_args(kwargs)) TypeError: staticfile() got multiple values for keyword argument 'filename' class 'sqlalchemy.exceptions.NoSuchColumnError'> [05/Jun/2008:21:42:22] HTTP Traceback (most recent call last): File "/var/lib/python-support/python2.5/cherrypy/_cprequest.py", line 550, in respond cherrypy.response.body = self.handler() File "/var/lib/python-support/python2.5/cherrypy/_cpdispatch.py", line 24, in __call__ return self.callable(*self.args, **self.kwargs) File "/var/local/mochilla/sparrow/http.py", line 38, in default return render(args, kwargs, location_st) File "/var/local/mochilla/sparrow/templates.py", line 346, in render get_uri(location_id) File "/var/local/mochilla/sparrow/uri.py", line 31, in get_uri selected = db.session.query(TemplateRelation).filter_by(location=uri)[0] File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 844, in __getitem__ return list(self[item:item+1])[0] File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 986, in iterate_instances rows = [process[0](context, row) for row in fetch] File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 1551, in main extension=context.extension, only_load_props=context.only_load_props, refresh_instance=context.refresh_instance File "/var/lib/python-support/python2.5/sqlalchemy/orm/mapper.py", line 1380, in _instance identitykey = self.identity_key_from_row(row) File "/var/lib/python-support/python2.5/sqlalchemy/orm/mapper.py", line 915, in identity_key_from_row return (self._identity_class, tuple([row[column] for column in self.primary_key]), self.entity_name) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 1339, in __getitem__ return self.__parent._get_col(self.__row, key) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 1594, in _get_col type_, processor, index = self._key_cache[key] File "/var/lib/python-support/python2.5/sqlalchemy/util.py", line 113, in __missing__ self[key] = val = self.creator(key) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 1491, in lookup_key raise exceptions.NoSuchColumnError("Could not locate column in row for column '%s'" % (str(key))) NoSuchColumnError: "Could not locate column in row for column 'template_relations.location'" [05/Jun/2008:04:49:50] HTTP Traceback (most recent call last): File "/var/lib/python-support/python2.5/cherrypy/_cprequest.py", line 550, in respond cherrypy.response.body = self.handler() File "/var/lib/python-support/python2.5/cherrypy/_cpdispatch.py", line 24, in __call__ return self.callable(*self.args, **self.kwargs) File "/var/local/mochilla/sparrow/http.py", line 38, in default return render(args, kwargs, location_st) File "/var/local/mochilla/sparrow/templates.py", line 363, in render return render_skeleton(location, location_st, kwargs) File "/var/local/mochilla/sparrow/templates.py", line 266, in render_skeleton body, cmds_array = compile_templates(location, kwargs) File "/var/local/mochilla/sparrow/templates.py", line 253, in compile_templates body = render_template(settings.root.views_path+"/"+doc.template.source, data) File "/var/local/mochilla/sparrow/templates.py", line 187, in render_template return t.respond() File "_var_local_mochilla_templates_table_of_contents_shop_tmpl.py", line 92, in respond File "/var/local/mochilla/sparrow/order.py", line 62, in sort_by_order obj.order[0] File "/var/lib/python-support/python2.5/sqlalchemy/orm/attributes.py", line 44, in __get__ return self.impl.get(instance._state) File "/var/lib/python-support/python2.5/sqlalchemy/orm/attributes.py", line 217, in get def sethasparent(self, state, value): File "/var/lib/python-support/python2.5/sqlalchemy/orm/strategies.py", line 471, in __call__ File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 687, in all currenttables.append(join.right) File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 748, in __iter__ raise exceptions.InvalidRequestError("Self-referential query on '%s' property requires aliased=True argument." % str(prop)) File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 751, in _execute_and_instances File "/var/lib/python-support/python2.5/sqlalchemy/orm/session.py", line 535, in execute """Commit the current transaction in progress. File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 844, in execute return Connection.executors[c](self, object, multiparams, params) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 895, in execute_clauseelement return self._execute_compiled(elem.compile(dialect=self.dialect, column_keys=keys, inline=len(params) > 1), distilled_params=params) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 904, in _execute_compiled context = self.__create_execution_context(compiled=compiled, parameters=distilled_params) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 941, in __create_execution_context self.close() File "/var/lib/python-support/python2.5/sqlalchemy/databases/mysql.py", line 1458, in create_execution_context if ssl: File "/var/lib/python-support/python2.5/sqlalchemy/engine/default.py", line 179, in __init__ self.cursor = self.create_cursor() File "/var/lib/python-support/python2.5/sqlalchemy/engine/default.py", line 275, in create_cursor def create_cursor(self): File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 583, in connection self.__invalid = False InvalidRequestError: Can't reconnect until invalid transaction is rolled back 127.0.0.1 - - [05/Jun/2008:06:19:56] "GET / HTTP/1.0" 500 1911 "" "" [05/Jun/2008:06:19:56] HTTP Traceback (most recent call last): File "/var/lib/python-support/python2.5/cherrypy/_cprequest.py", line 550, in respond cherrypy.response.body = self.handler() File "/var/lib/python-support/python2.5/cherrypy/_cpdispatch.py", line 24, in __call__ return self.callable(*self.args, **self.kwargs) File "/var/local/mochilla/sparrow/http.py", line 38, in default return render(args, kwargs, location_st) File "/var/local/mochilla/sparrow/templates.py", line 363, in render return render_skeleton(location, location_st, kwargs) File "/var/local/mochilla/sparrow/templates.py", line 266, in render_skeleton body, cmds_array = compile_templates(location, kwargs) File "/var/local/mochilla/sparrow/templates.py", line 192, in compile_templates doc = get_uri(location) File "/var/local/mochilla/sparrow/uri.py", line 31, in get_uri selected = db.session.query(TemplateRelation).filter_by(location=uri)[0] File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 844, in __getitem__ return list(self[item:item+1])[0] File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 936, in __iter__ return self._execute_and_instances(context) File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 939, in _execute_and_instances result = self.session.execute(querycontext.statement, params=self._params, mapper=self.mapper, instance=self._refresh_instance) File "/var/lib/python-support/python2.5/sqlalchemy/orm/session.py", line 625, in execute return self.__connection(engine, close_with_result=True).execute(clause, params or {}) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 844, in execute return Connection.executors[c](self, object, multiparams, params) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 895, in execute_clauseelement return self._execute_compiled(elem.compile(dialect=self.dialect, column_keys=keys, inline=len(params) > 1), distilled_params=params) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 907, in _execute_compiled self.__execute_raw(context) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 916, in __execute_raw self._cursor_execute(context.cursor, context.statement, context.parameters[0], context=context) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 960, in _cursor_execute self._handle_dbapi_exception(e, statement, parameters, cursor) File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 844, in __getitem__ return list(self[item:item+1])[0] File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 936, in __iter__ return self._execute_and_instances(context) File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 939, in _execute_and_instances result = self.session.execute(querycontext.statement, params=self._params, mapper=self.mapper, instance=self._refresh_instance) File "/var/lib/python-support/python2.5/sqlalchemy/orm/session.py", line 625, in execute return self.__connection(engine, close_with_result=True).execute(clause, params or {}) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 844, in execute return Connection.executors[c](self, object, multiparams, params) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 895, in execute_clauseelement return self._execute_compiled(elem.compile(dialect=self.dialect, column_keys=keys, inline=len(params) > 1), distilled_params=params) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 907, in _execute_compiled self.__execute_raw(context) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 916, in __execute_raw self._cursor_execute(context.cursor, context.statement, context.parameters[0], context=context) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 960, in _cursor_execute self._handle_dbapi_exception(e, statement, parameters, cursor) File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line 942, in _handle_dbapi_exception raise exceptions.DBAPIError.instance(statement, parameters, e, connection_invalidated=is_disconnect) OperationalError: (OperationalError) (2013, 'Lost connection to MySQL server during query') u'SELECT template_relations.location AS template_relations_location, template_relati\ ons.oid AS template_relations_oid, template_relations.vid AS template_relations_vid, template_relations.children AS template_relations_children \nFROM template_relations \nWHER\ E template_relations.location = %s ORDER BY template_relations.location \n LIMIT 0, 1' ['r'] --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
