Hello Guys,
I'm receiving errors in my application on a fairly regular basis now and I'm
not sure how to begin solving it.
Please find attached a backtrace for the error. It seems that its struggling
to connect to the MySQL server, however I get this after the application has
been running and querying the database for some time.
Any ideas what might be causing this? I'd appreciate your thoughts. The code
which throws the error is a very simple query(some_object).get(id)
Cheers all,
Heston
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File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 414,
in get
return self._get(key, ident)
File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 1211,
in _get
return q.all()[0]
File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 985,
in all
return list(self)
File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 1073,
in __iter__
return self._execute_and_instances(context)
File "/var/lib/python-support/python2.5/sqlalchemy/orm/query.py", line 1076,
in _execute_and_instances
result = self.session.execute(querycontext.statement, params=self._params,
mapper=self._mapper_zero_or_none(), _state=self._refresh_state)
File "/var/lib/python-support/python2.5/sqlalchemy/orm/session.py", line 750,
in execute
return self.__connection(engine, close_with_result=True).execute(
File "/var/lib/python-support/python2.5/sqlalchemy/orm/session.py", line 717,
in __connection
return self.transaction._connection_for_bind(engine)
File "/var/lib/python-support/python2.5/sqlalchemy/orm/session.py", line 326,
in _connection_for_bind
conn = bind.contextual_connect()
File "/var/lib/python-support/python2.5/sqlalchemy/engine/base.py", line
1247, in contextual_connect
return self.Connection(self, self.pool.connect(),
close_with_result=close_with_result, **kwargs)
File "/var/lib/python-support/python2.5/sqlalchemy/pool.py", line 161, in
connect
return _ConnectionFairy(self).checkout()
File "/var/lib/python-support/python2.5/sqlalchemy/pool.py", line 321, in
__init__
rec = self._connection_record = pool.get()
File "/var/lib/python-support/python2.5/sqlalchemy/pool.py", line 180, in get
return self.do_get()
File "/var/lib/python-support/python2.5/sqlalchemy/pool.py", line 618, in
do_get
con = self.create_connection()
File "/var/lib/python-support/python2.5/sqlalchemy/pool.py", line 141, in
create_connection
return _ConnectionRecord(self)
File "/var/lib/python-support/python2.5/sqlalchemy/pool.py", line 217, in
__init__
self.connection = self.__connect()
File "/var/lib/python-support/python2.5/sqlalchemy/pool.py", line 280, in
__connect
connection = self.__pool._creator()
File "/var/lib/python-support/python2.5/sqlalchemy/engine/strategies.py",
line 80, in connect
raise exc.DBAPIError.instance(None, None, e)
OperationalError: (OperationalError) (2002, "Can't connect to local MySQL
server through socket '/var/run/mysqld/mysqld.sock' (2)") None None
