FATAL:  remaining connection slots are reserved for non-replication superuser connections



Traceback (most recent call last):
  File "/mnt/hd/web/1bpm.net/ml.csound/app/handler.py", line 386, in <module>
    handle()
  File "/mnt/hd/web/1bpm.net/ml.csound/app/handler.py", line 375, in handle
    return Overview(mailing_list).render({"page": int(parts[2])})
  File "/mnt/hd/web/1bpm.net/ml.csound/app/handler.py", line 203, in render
    self.create(data)
  File "/mnt/hd/web/1bpm.net/ml.csound/app/handler.py", line 241, in create
    for thread in threads:
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 5896, in __iter__
    self.execute()
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 1587, in inner
    return method(self, database, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 1658, in execute
    return self._execute(database)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 1809, in _execute
    cursor = database.execute(self)
  File "/usr/lib/python2.7/dist-packages/playhouse/postgres_ext.py", line 451, in execute
    cursor = self.execute_sql(sql, params, commit=commit)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2660, in execute_sql
    self.commit()
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2451, in __exit__
    reraise(new_type, new_type(*exc_args), traceback)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2651, in execute_sql
    cursor = self.cursor(commit)
  File "/usr/lib/python2.7/dist-packages/playhouse/postgres_ext.py", line 438, in cursor
    self.connect()
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2601, in connect
    self._initialize_connection(self._state.conn)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2451, in __exit__
    reraise(new_type, new_type(*exc_args), traceback)
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 2600, in connect
    self._state.set_connection(self._connect())
  File "/usr/lib/python2.7/dist-packages/playhouse/postgres_ext.py", line 431, in _connect
    conn = super(PostgresqlExtDatabase, self)._connect()
  File "/usr/lib/python2.7/dist-packages/peewee.py", line 3227, in _connect
    conn = psycopg2.connect(database=self.database, **self.connect_params)
  File "/usr/lib/python2.7/dist-packages/psycopg2/__init__.py", line 130, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
OperationalError: FATAL:  remaining connection slots are reserved for non-replication superuser connections