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https://issues.apache.org/jira/browse/THRIFT-1062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13271641#comment-13271641
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FEIFAN commented on THRIFT-1062:
--------------------------------
@Viacheslav
I met this problem too, then I did some inspection. That's because twisted add
a 4 bytes INT length in front of the real data.
check my blog:
http://blog.thisisfeifan.com/2012/05/thrift-twisted-server-not-twisted.html
> Problems with python tutorials
> ------------------------------
>
> Key: THRIFT-1062
> URL: https://issues.apache.org/jira/browse/THRIFT-1062
> Project: Thrift
> Issue Type: Bug
> Components: Python - Library, Tutorial
> Affects Versions: 0.7
> Environment: Thrift trunk (svn rev:1071191), python 2.7,
> FreeBSD/amd64 8-stable
> Reporter: Attila Nagy
>
> I'm trying to do some experiments with python and thrift, starting with the
> tutorials in the source code.
> First test: making tutorials/py.twisted client and server interact.
> Started the server with: tutorial/py.twisted]# python PythonServer.py
> and the client with:
> tutorial/py.twisted]# python PythonClient.py
> Traceback (most recent call last):
> File "PythonClient.py", line 26, in <module>
> from tutorial import Calculator
> ImportError: No module named tutorial
> The problem is that PythonClient uses the python and not the py.twisted path:
> sys.path.append('../gen-py')
> changing that to gen-py.twisted solves the problem:
> tutorial/py.twisted]# python PythonClient.py
> ping()
> 1+1=2
> InvalidOperation: InvalidOperation(what=4, why='Cannot divide by 0')
> 15-10=5
> Check log: 5
> Second test: make python twisted server work with python (not the twisted
> one) client:
> tutorial/py.twisted]# python PythonServer.py
> tutorial/py]# python PythonClient.py
> TSocket read 0 bytes
> Please note here, that the server listens only on IPv4, 127.0.0.1, while the
> clients connects to 'localhost', which resolves to ::1 (IPv6) and 127.0.0.1,
> so the first connection request is refused and only the seconds succeeds:
> 12:07:24.887750 IP6 ::1.45100 > ::1.9090: Flags [S], seq 445533509, win
> 65535, options [mss 16324,nop,wscale 3,sackOK,TS val 7743539 ecr 0], length 0
> 12:07:24.887785 IP6 ::1.9090 > ::1.45100: Flags [R.], seq 0, ack 445533510,
> win 0, length 0
> 12:07:24.887924 IP 127.0.0.1.48945 > 127.0.0.1.9090: Flags [S], seq
> 3667752274, win 65535, options [mss 16344,nop,wscale 3,sackOK,TS val 7743539
> ecr 0], length 0
> 12:07:24.887948 IP 127.0.0.1.9090 > 127.0.0.1.48945: Flags [S.], seq
> 3988782459, ack 3667752275, win 65535, options [mss 16344,nop,wscale
> 3,sackOK,TS val 1390952173 ecr 7743539], length 0
> Changing localhost to 127.0.0.1 (to work around the first IPv6 connection
> request) changes nothing:
> transport = TSocket.TSocket('localhost', 9090) -> transport =
> TSocket.TSocket('127.0.0.1', 9090)
> tutorial/py]# python PythonClient.py
> TSocket read 0 bytes
> Trying the other way: starting the python server and connecting with python
> client:
> tutorial/py]# python PythonServer.py
> Starting the server...
> Traceback (most recent call last):
> File "PythonServer.py", line 95, in <module>
> server.serve()
> File "/usr/local/lib/python2.7/site-packages/thrift/server/TServer.py",
> line 74, in serve
> self.serverTransport.listen()
> File "/usr/local/lib/python2.7/site-packages/thrift/transport/TSocket.py",
> line 136, in listen
> res0 = self._resolveAddr()
> File "/usr/local/lib/python2.7/site-packages/thrift/transport/TSocket.py",
> line 31, in _resolveAddr
> return socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC,
> socket.SOCK_STREAM, 0, socket.AI_PASSIVE | socket.AI_ADDRCONFIG)
> TypeError: getaddrinfo() argument 1 must be string or None
> Here it seems the problem is that no host has been given, and getaddrinfo
> fails on that.
> Giving the listen address explicitly:
> transport = TSocket.TServerSocket(9090) -> transport =
> TSocket.TServerSocket('127.0.0.1',9090)
> makes the server start.
> Connecting with the client:
> tutorial/py]# python PythonClient.py
> ping()
> 1+1=2
> InvalidOperation: InvalidOperation(what=4, why='Cannot divide by 0')
> 15-10=5
> Check log: 5
> gives the expected result. So the python client can interact with the python
> server, but the
> Looking at the code, I can't see why these two can't interact. BTW, I've
> tried the Ruby client, and it can work with the python server, but not with
> the python twisted server.
> So I guess python twisted server (and so the client) is incompatible with
> everything else. Which seems pretty bad...
> Or I'm just on the wrong track somewhere.
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