当我查询使用龙卷风，gevent，postgres和使用psycogreen修补的其余应用程序时，我收到此错误。即使我以并发10的要求发出请求，我也经常收到此错误。如果有任何人有解决方案或有关我可能做错的信息请分享。
错误讯息：
ProgrammingError :(编程错误）执行异步查询时无法使用
ProgrammingError：异步查询正在进行时无法使用close
堆栈追踪：
File "/ENV/local/lib/python2.7/site-packages/sqlalchemy/orm/query.py", line 2320, in all
return list(self)
File "/ENV/local/lib/python2.7/site-packages/sqlalchemy/orm/query.py", line 2438, in __iter__
return self._execute_and_instances(context)
File "/ENV/local/lib/python2.7/site-packages/sqlalchemy/orm/query.py", line 2453, in _execute_and_instances
result = conn.execute(querycontext.statement, self._params)
File "/ENV/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 729, in execute
return meth(self, multiparams, params)
File "/ENV/local/lib/python2.7/site-packages/sqlalchemy/sql/elements.py", line 322, in _execute_on_connection
return connection._execute_clauseelement(self, multiparams, params)
File "/ENV/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 826, in _execute_clauseelement
compiled_sql, distilled_params
File "/ENV/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 958, in _execute_context
context)
File "/ENV/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1159, in _handle_dbapi_exception
exc_info
File "/ENV/local/lib/python2.7/site-packages/sqlalchemy/util/compat.py", line 199, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb)
File "/ENV/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 951, in _execute_context
context)
File "/ENV/local/lib/python2.7/site-packages/sqlalchemy/engine/default.py", line 436, in do_execute
cursor.execute(statement, parameters)
ProgrammingError: (ProgrammingError) execute cannot be used while an asynchronous query is underway
答案 0 :(得分：2)
您可能同时使用两个不同游标的相同连接。