[THRIFT-4890] AttributeError: 'Connection' object has no attribute 'message'

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.12.0
• Component/s: Python - Library
• Labels: Connection Newbie Python3 Question non-blocking

Environment

Ubuntu Linux 18.10 64-bit

• Assignee: Unassigned
• Reporter: George Grigalashvili
• Created: 18/Jun/19 10:26
• Updated: 03/Jun/20 11:26

Description

As part of my university research I'm using Thrift v0.12.0 to communicate between Python server and Scala client. 

The data my service is providing to client is lists of thrift objects/structs, those lists contain ~1M items. The issue bellow is produced if I'm sending full lists(more than ~60k items) of data, however if I decrease list items to ~60k everything works fine. 

Traceback (most recent call last): 
File "Server.py", line 40, in <module> 
server.serve() 
File "thrift/server/TNonblockingServer.py", line 370, in serve 
self.handle() 
File "thrift/server/TNonblockingServer.py", line 350, in handle 
self.clients[writeable].write() 
File "thrift/server/TNonblockingServer.py", line 88, in read 
return func(self, *args, **kwargs) 
File "thrift/server/TNonblockingServer.py", line 177, in write 
self._wbuf = self.message[sent:] 
AttributeError: 'Connection' object has no attribute 'message'

This is my server configuration:

ip = '127.0.0.1'
port = '9000'
handler = MyHandler()
processor = MyService.Processor(handler)
transport = TSocket.TServerSocket(host=ip, port=port)

tfactory = TBinaryProtocol.TBinaryProtocolFactory()
pfactory = TBinaryProtocol.TBinaryProtocolFactory()

server = TNonblockingServer.TNonblockingServer(processor, transport, tfactory, pfactory)

server.serve()

Now my question is as follows, am I doing something wrong or could it be that it's an issue from Thrift? Any ideas how can I resolve this problem or what I could be doing wrong?

Thanks in advance.