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Invalid method name 'OpenSession' when I try to connect

See original GitHub issue

When I run impala.dbapi.connect(port=21000).cursor(), I get this error:

/home/julia/clones/impyla/impala/dbapi.py in cursor(self, session_handle, user, configuration)
     71             user = getpass.getuser()
     72         if session_handle is None:
---> 73             session_handle = impala.rpc.open_session(self.service, user, configuration)
     74         return Cursor(self.service, session_handle)
     75 

/home/julia/clones/impyla/impala/rpc.py in wrapper(*args, **kwargs)
    116                 if not transport.isOpen():
    117                     transport.open()
--> 118                 return func(*args, **kwargs)
    119             except socket.error as e:
    120                 pass

/home/julia/clones/impyla/impala/rpc.py in open_session(service, user, configuration)
    186 def open_session(service, user, configuration=None):
    187     req = TOpenSessionReq(username=user, configuration=configuration)
--> 188     resp = service.OpenSession(req)
    189     err_if_rpc_not_ok(resp)
    190     return resp.sessionHandle

/home/julia/clones/impyla/impala/cli_service/TCLIService.py in OpenSession(self, req)
    152     """
    153     self.send_OpenSession(req)
--> 154     return self.recv_OpenSession()
    155 
    156   def send_OpenSession(self, req):

/home/julia/clones/impyla/impala/cli_service/TCLIService.py in recv_OpenSession(self)
    168       x.read(self._iprot)
    169       self._iprot.readMessageEnd()
--> 170       raise x
    171     result = OpenSession_result()
    172     result.read(self._iprot)

TApplicationException: Invalid method name: 'OpenSession'

What does this error mean? I’m not sure how to debug this.

Issue Analytics

State:
Created 9 years ago
Comments:6 (1 by maintainers)

Top GitHub Comments

6reactions

jvnscommented, Apr 25, 2014

never mind! Was connecting to impalad instead of Impala ODBC. Should have used port 21050!

2reactions

matiji66commented, Nov 24, 2016

Oh,i first use static String JDBC_DRIVER = “com.cloudera.impala.jdbc41.Driver”; static String CONNECTION_URL = “jdbc:impala://10.1.16.37:21000/obd_message”; But met the problem Invalid method name ‘OpenSession’ when I try to connect as the title. Then，change port to 21050 can resolve my problem too.