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Date: Tue, 9 Nov 2010 11:55:32 -0600
Message-ID: <AANLkTi=1vkojabqD+NpVOOoWdcR5pAmbSdeGz=1Rt-N9@mail.gmail.com>
Subject: Re: Cassandra - python communication problem
From: Jonathan Ellis <jbellis@gmail.com>
To: user <user@cassandra.apache.org>
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You're using an unframed transport to talk to a framed server, or vice vers=
a.

On Tue, Nov 9, 2010 at 11:47 AM, Dr. Andrew Perella <ajp@eutechnyx.com> wro=
te:
> Hi,
>
>
>
> I have been trying to connect to Cassandra 0.7.0-beta3 via python to no
> avail:
>
>
>
> vu@vs001:~/apache-cassandra-0.7.0-beta3/interface/gen-py/cassandra$
> Cassandra-remote=A0 -h localhost:9160 describe_keyspace system
>
> Traceback (most recent call last):
>
> =A0 File "/usr/local/bin/Cassandra-remote", line 5, in <module>
>
> =A0=A0=A0 pkg_resources.run_script('python-cassandra=3D=3D0.6.1', 'Cassan=
dra-remote')
>
> =A0 File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 461, i=
n
> run_script
>
> =A0=A0=A0 self.require(requires)[0].run_script(script_name, ns)
>
> =A0 File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 1194, =
in
> run_script
>
> =A0=A0=A0 execfile(script_filename, namespace, namespace)
>
> =A0 File
> "/usr/local/lib/python2.6/dist-packages/python_cassandra-0.6.1-py2.6.egg/=
EGG-INFO/scripts/Cassandra-remote",
> line 204, in <module>
>
> =A0=A0=A0 pp.pprint(client.describe_keyspace(args[0],))
>
> =A0 File
> "/usr/local/lib/python2.6/dist-packages/python_cassandra-0.6.1-py2.6.egg/=
cassandra/Cassandra.py",
> line 1006, in describe_keyspace
>
> =A0=A0=A0 return self.recv_describe_keyspace()
>
> =A0 File
> "/usr/local/lib/python2.6/dist-packages/python_cassandra-0.6.1-py2.6.egg/=
cassandra/Cassandra.py",
> line 1017, in recv_describe_keyspace
>
> =A0=A0=A0 (fname, mtype, rseqid) =3D self._iprot.readMessageBegin()
>
> =A0 File
> "/usr/local/lib/python2.6/dist-packages/Thrift-0.2.0-py2.6-linux-x86_64.e=
gg/thrift/protocol/TBinaryProtocol.py",
> line 126, in readMessageBegin
>
> =A0=A0=A0 sz =3D self.readI32()
>
> =A0 File
> "/usr/local/lib/python2.6/dist-packages/Thrift-0.2.0-py2.6-linux-x86_64.e=
gg/thrift/protocol/TBinaryProtocol.py",
> line 203, in readI32
>
> =A0=A0=A0 buff =3D self.trans.readAll(4)
>
> =A0 File
> "/usr/local/lib/python2.6/dist-packages/Thrift-0.2.0-py2.6-linux-x86_64.e=
gg/thrift/transport/TTransport.py",
> line 58, in readAll
>
> =A0=A0=A0 chunk =3D self.read(sz-have)
>
> =A0 File
> "/usr/local/lib/python2.6/dist-packages/Thrift-0.2.0-py2.6-linux-x86_64.e=
gg/thrift/transport/TTransport.py",
> line 155, in read
>
> =A0=A0=A0 self.__rbuf =3D StringIO(self.__trans.read(max(sz, self.DEFAULT=
_BUFFER)))
>
> =A0 File
> "/usr/local/lib/python2.6/dist-packages/Thrift-0.2.0-py2.6-linux-x86_64.e=
gg/thrift/transport/TSocket.py",
> line 94, in read
>
> =A0=A0=A0 raise TTransportException(type=3DTTransportException.END_OF_FIL=
E,
> message=3D'TSocket read 0 bytes')
>
> thrift.transport.TTransport.TTransportException: TSocket read 0 bytes
>
>
>
> I get similar errors for all queries.
>
>
>
> I cannot work out what is going wrong here. Can anyone help? (I need many=
 of
> the functions only added in 0.7)
>
>
>
> Best Regards,
>
> Andrew
>
>
>
>
>
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--=20
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com