使用data2MemoryTable 将df插入流数据表，没运行两分钟就显示连接断了， 不知道怎么搞的？

代码有些复杂， 大致是：在一个engine中开启了行情订阅、风险管理两个子线程，其中行情订阅是使用的websockets+asyncio异步订阅数据，流数据插入流数据表和latestIndexedTable两种表，风险管理子线程轮询查询内存中的latestIndexTable, 就是查询latestIndexTable这个内存表的时候报错。

class Dolphin:
	def init_(self，host=DOLPHINDB HOST,port=DOLPHINDB PORT，userid=DOLPHINDB USER，password=DOLPHINDB PASSWORD) -> None
	self.host = host
	self.port = port
	self.userid = userid
	self.password = password
	self.session = ddb.session(userid=userid, password-password, enableASYNC=False)
	self.session.connect(host=host, port=port, keepAliveTime=TIMEOUT, reconnect=True)
	self.asyncSession = ddb.session(userid=userid, password=password, enableASYNC=True)
	self.asyncSession.connect(host=host, port=portkeepAliveTime=TIMEOUT， reconnect=True)

def runScript(self,*script，enableAsync=False，clearMemory=False):
	if enableAsync:
		self.asyncSession.run(*script，clearMemory=clearMemory)
	else:
		result = self.session.run(*script,clearMemory=clearMemory)
	return result
	
def data2MemoryTable(self，tableName,*data,enableAsync=False):
	"""将DataFrame 插入内存表中"""
	script = "tableInsert{%s}" % tableName
	if len(data)>0:
		self.runScript(script，*data, enableAsync=enableAsync)

日志中打印如下：

2023-08-07 20:18:15.258423 <INFO> :Created a new socket connection. Number of connections: 17
2023-08-07 2018:15.258423 <INFO> :New connection from ip = 127.0.0.1 port = 54558
2023-08-07 20:18:15.259422 <ERROR> :Received ED CLOSE
2023-08-07 20:18:15.259422 <INFO> :Close a connection with index=17. Number of remaining connections: 16

一直都是显示FD_CLOSE 报错，请问这个是什么原因呢？ 明明是开启了keepAliveTime，也设了reconnect=True。

无论怎么调session参数都是一直报错，运行不了几分钟就说   Couldn't send script/function to the remote host because the connection has been closed