privacyidea-webgui-timeout

[2017-01-16 09:16:32,448][11892][140347854698240][DEBUG][privacyidea.lib.config:72] The singleton <class 'privacyidea.lib.config.ConfigClass'> already exists.
[2017-01-16 09:16:32,453][11892][140347854698240][ERROR][privacyidea.app:1423] Exception on /auth [POST]
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1817, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1477, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1381, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1473, in full_dispatch_request
    rv = self.preprocess_request()
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1666, in preprocess_request
    rv = func()
  File "/usr/lib/python2.7/dist-packages/privacyidea/api/auth.py", line 79, in before_request
    g.config_object = ConfigClass()
  File "/usr/lib/python2.7/dist-packages/privacyidea/lib/config.py", line 74, in __call__
    cls._instances[cls].reload_from_db()
  File "/usr/lib/python2.7/dist-packages/privacyidea/lib/config.py", line 109, in reload_from_db
    db_ts = Config.query.filter_by(Key=PRIVACYIDEA_TIMESTAMP).first()
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2634, in first
    ret = list(self[0:1])
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2457, in __getitem__
    return list(res)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2736, in __iter__
    return self._execute_and_instances(context)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2751, in _execute_and_instances
    result = conn.execute(querycontext.statement, self._params)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 914, in execute
    return meth(self, multiparams, params)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/sql/elements.py", line 323, in _execute_on_connection
    return connection._execute_clauseelement(self, multiparams, params)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1010, in _execute_clauseelement
    compiled_sql, distilled_params
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1146, in _execute_context
    context)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1341, in _handle_dbapi_exception
    exc_info
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/util/compat.py", line 200, in raise_from_cause
    reraise(type(exception), exception, tb=exc_tb)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1139, in _execute_context
    context)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/default.py", line 450, in do_execute
    cursor.execute(statement, parameters)
  File "/usr/lib/python2.7/dist-packages/pymysql/cursors.py", line 166, in execute
    result = self._query(query)
  File "/usr/lib/python2.7/dist-packages/pymysql/cursors.py", line 322, in _query
    conn.query(q)
  File "/usr/lib/python2.7/dist-packages/pymysql/connections.py", line 835, in query
    self._affected_rows = self._read_query_result(unbuffered=unbuffered)
  File "/usr/lib/python2.7/dist-packages/pymysql/connections.py", line 1019, in _read_query_result
    result.read()
  File "/usr/lib/python2.7/dist-packages/pymysql/connections.py", line 1302, in read
    first_packet = self.connection._read_packet()
  File "/usr/lib/python2.7/dist-packages/pymysql/connections.py", line 961, in _read_packet
    packet_header = self._read_bytes(4)
  File "/usr/lib/python2.7/dist-packages/pymysql/connections.py", line 998, in _read_bytes
    2013, "Lost connection to MySQL server during query")
OperationalError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') [SQL: u'SELECT config.`Key` AS `config_Key`, config.`Value` AS `config_Value`, config.`Type` AS `config_Type`, config.`Description` AS `config_Description` \nFROM config \nWHERE config.`Key` = %(Key_1)s \n LIMIT %(param_1)s'] [parameters: {u'Key_1': '__timestamp__', u'param_1': 1}]