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From J T <jt4websi...@googlemail.com>
Subject Upgrading to Cassanda 0.7 Thrift Erlang
Date Tue, 27 Jul 2010 18:33:29 GMT
Hi,

I just tried upgrading a perfectly working Cassandra 0.6.3 to Cassandra 0.7
and am finding that even after re-generating the erlang thrift bindings that
I am unable to perform any operation.
I can get a connection but if I try to login or set the keyspace I get a
report from the erlang bindings to say that the connection is closed.

I then tried upgrading to a later version of thrift but still get the same
error.

e.g.
(zotonic3989@127.0.0.1)1> thrift_client:start_link("localhost", 9160,
cassandra_thrift).
{ok,<0.327.0>}
(zotonic3989@127.0.0.1)2> {ok,C}=thrift_client:start_link("localhost", 9160,
cassandra_thrift).
{ok,<0.358.0>}
(zotonic3989@127.0.0.1)3> thrift_client:call( C, set_keyspace, [ <<"Test">>
 ]).

=ERROR REPORT==== 27-Jul-2010::03:48:08 ===
** Generic server <0.358.0> terminating
** Last message in was {call,set_keyspace,[<<"Test">>]}
** When Server state == {state,cassandra_thrift,
                         {protocol,thrift_binary_protocol,
                          {binary_protocol,
                           {transport,thrift_buffered_transport,<0.359.0>},
                           true,true}},
                         0}
** Reason for termination ==
** {{case_clause,{error,closed}},
    [{thrift_client,read_result,3},
     {thrift_client,catch_function_exceptions,2},
     {thrift_client,handle_call,3},
     {gen_server,handle_msg,5},
     {proc_lib,init_p_do_apply,3}]}
** exception exit: {case_clause,{error,closed}}
     in function  thrift_client:read_result/3
     in call from thrift_client:catch_function_exceptions/2
     in call from thrift_client:handle_call/3
     in call from gen_server:handle_msg/5
     in call from proc_lib:init_p_do_apply/3

The cassandra log seems to indicate that a connection has been made
(although thats only apparent by a TRACE log message saying that a logout
has been done).

The cassandra-cli program is able to connect and function normally so I can
only assume that there is a problem with the erlang bindings.

Has anyone else had any success using 0.7 from Erlang ?

JT.

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