InterfaceError after uptdating from MySQL 5.5 to Percona 5.6

[Juan Antonio Ibáñez]

Hello,

   I am migrating from MySQL 5.5 to Percona 5.6.16. If I run the app through paste script it works ok but I run under apache I get:

File 'build/bdist.linux-x86_64/egg/sqlalchemy/orm/query.py', line 2184 in one

File 'build/bdist.linux-x86_64/egg/sqlalchemy/orm/query.py', line 2227 in __iter__

File 'build/bdist.linux-x86_64/egg/sqlalchemy/orm/query.py', line 2240 in _execute_and_instances

File 'build/bdist.linux-x86_64/egg/sqlalchemy/orm/query.py', line 2231 in _connection_from_session

File 'build/bdist.linux-x86_64/egg/sqlalchemy/orm/session.py', line 730 in connection

File 'build/bdist.linux-x86_64/egg/sqlalchemy/orm/session.py', line 734 in _connection_for_bind

File 'build/bdist.linux-x86_64/egg/sqlalchemy/orm/session.py', line 267 in _connection_for_bind

File 'build/bdist.linux-x86_64/egg/sqlalchemy/engine/base.py', line 2490 in contextual_connect

File 'build/bdist.linux-x86_64/egg/sqlalchemy/pool.py', line 224 in connect

File 'build/bdist.linux-x86_64/egg/sqlalchemy/pool.py', line 387 in __init__

File 'build/bdist.linux-x86_64/egg/sqlalchemy/pool.py', line 741 in _do_get

File 'build/bdist.linux-x86_64/egg/sqlalchemy/pool.py', line 188 in _create_connection

File 'build/bdist.linux-x86_64/egg/sqlalchemy/pool.py', line 273 in __init__

File 'build/bdist.linux-x86_64/egg/sqlalchemy/event.py', line 282 in exec_once

File 'build/bdist.linux-x86_64/egg/sqlalchemy/event.py', line 291 in __call__

File 'build/bdist.linux-x86_64/egg/sqlalchemy/engine/strategies.py', line 167 in first_connect

File 'build/bdist.linux-x86_64/egg/sqlalchemy/dialects/mysql/base.py', line 1999 in initialize

File 'build/bdist.linux-x86_64/egg/sqlalchemy/engine/default.py', line 176 in initialize

File 'build/bdist.linux-x86_64/egg/sqlalchemy/dialects/mysql/base.py', line 1964 in _get_default_schema_name

File 'build/bdist.linux-x86_64/egg/sqlalchemy/engine/base.py', line 1449 in execute

File 'build/bdist.linux-x86_64/egg/sqlalchemy/engine/base.py', line 1628 in _execute_text

File 'build/bdist.linux-x86_64/egg/sqlalchemy/engine/base.py', line 1698 in _execute_context

File 'build/bdist.linux-x86_64/egg/sqlalchemy/engine/base.py', line 1691 in _execute_context

File 'build/bdist.linux-x86_64/egg/sqlalchemy/engine/default.py', line 331 in do_execute

File 'build/bdist.linux-x86_64/egg/MySQLdb/cursors.py', line 201 in execute

File 'build/bdist.linux-x86_64/egg/MySQLdb/connections.py', line 36 in defaulterrorhandler

InterfaceError: (InterfaceError) (0, '') 'SELECT DATABASE()' ()

Any idea where the problem could be?

Regards