Anfernee Yongkun Gui created THRIFT-2335:
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Summary: thrift incompatibility with py:tornado as server, java as
client
Key: THRIFT-2335
URL: https://issues.apache.org/jira/browse/THRIFT-2335
Project: Thrift
Issue Type: Bug
Components: Python - Library
Affects Versions: 0.9.1
Environment: MacOSX 10.7.5
Python 2.6.7
Thrift 0.9.1
Tornado 2.4.1
Java 1.7.0_17
Reporter: Anfernee Yongkun Gui
Priority: Blocker
I used both py:tornado server and client, it worked well. But when I tried to
run py:tornado server and java client, it failed with the following error (same
thing happens in python client).
Starting python server...
unregister
None
ERROR:root:Uncaught exception, closing connection.
Traceback (most recent call last):
File "/Library/Python/2.6/site-packages/tornado/iostream.py", line 311, in
wrapper
callback(*args)
File "/Library/Python/2.6/site-packages/tornado/stack_context.py", line 229, in
wrapped
callback(*args, **kwargs)
File "/Library/Python/2.6/site-packages/tornado/gen.py", line 383, in inner
self.set_result(key, result)
File "/Library/Python/2.6/site-packages/tornado/gen.py", line 315, in set_result
self.run()
File "/Library/Python/2.6/site-packages/tornado/gen.py", line 345, in run
yielded = self.gen.send(next)
File "/Library/Python/2.6/site-packages/thrift/TTornado.py", line 104, in
_readFrameFromStream
frame_length, = struct.unpack('!i', frame_header)
error: unpack requires a string argument of length 4
My environment is:
MacOSX 10.7.5
Python 2.6.7
Thrift 0.9.1
Tornado 2.4.1
Java 1.7.0_17
Thrift file:
namespace java protocol
namespace py protocol
struct RegisterMessage {
1: required string type
2: required string name
3: required string host
4: required i32 port
5: optional i32 service_port
}
struct UnregisterMessage {
1: required string type
2: required string name
3: required string host
}
service Registry {
bool register_component(1: RegisterMessage message)
bool unregister_component(1: UnregisterMessage message)
}
Python server:
class RegistryHandler:
def register_component(self, message, callback):
print 'register'
print message
callback(True)
def unregister_component(self, message, callback):
print 'unregister'
print message
callback(True)
handler = RegistryHandler()
processor = gen.protocol.Registry.Processor(handler)
pfactory = TBinaryProtocol.TBinaryProtocolFactory()
server = TTornado.TTornadoServer(processor, pfactory)
print "Starting python server..."
server.bind(50002)
server.start(1)
ioloop.IOLoop.instance().start()
print "done!"
Java client: public class JavaClient {
public static void main(String []args) {
try {
TTransport transport = new TSocket("localhost", 50002);
transport.open();
TProtocol protocol = new TBinaryProtocol(transport);
// TProtocol protocol = new TJSONProtocol(transport);
Registry.Client client = new Registry.Client(protocol);
// RegisterMessage message = new RegisterMessage("1", "2", "3", 4);
// client.register_component(message);
UnregisterMessage u_message = new UnregisterMessage("1", "2", "3");
client.unregister_component(u_message);
} catch (Exception e) {
e.printStackTrace();
}
}
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