标签: momoko

我使用tornado(4.2.1)+ momoko(2.2.0)+ psycopg2(2.6.1)进行小型Web应用程序,它可以正常运行,直到PostgreSQL服务器关闭连接.然后在每个db.execute()命令后,我收到一条错误消息:

Traceback (most recent call last):
      File "C:\Python27\lib\site-packages\tornado-4.2.1-py2.7-win32.egg\tornado\web.py", line 1415, in _execute
        result = yield result
      File "C:\Python27\lib\site-packages\tornado-4.2.1-py2.7-win32.egg\tornado\gen.py", line 870, in run
        value = future.result()
      File "C:\Python27\lib\site-packages\tornado-4.2.1-py2.7-win32.egg\tornado\concurrent.py", line 215, in result
        raise_exc_info(self._exc_info)
      File "C:\Python27\lib\site-packages\tornado-4.2.1-py2.7-win32.egg\tornado\gen.py", line 876, in run
        yielded = self.gen.throw(*exc_info)
      File "server.py", line 63, in get
        cursor = yield self.db.execute(query)
      File "C:\Python27\lib\site-packages\tornado-4.2.1-py2.7-win32.egg\tornado\gen.py", line 870, in run
        value = future.result()
      File "C:\Python27\lib\site-packages\tornado-4.2.1-py2.7-win32.egg\tornado\concurrent.py", line 215, in result
        raise_exc_info(self._exc_info)
      File "D:\work\program-stat\momoko\connection.py", line 453, in when_available
        future_or_result = method(conn, *args, **kwargs) …