Hi JT, Is 8888 the thrift port or Cassandra's internal protocol? It's been a while since I used Cassandra, but I thought that was the port for gossip, etc?
-Todd On Thu, Mar 4, 2010 at 12:07 AM, J T <[email protected]> wrote: > Hi, > > I've been trying to piece together some notion of how to use cassandra from > an erlang client. > > So far I have managed to come up with the following, but it doesn't work. > > Unfortunately there does not seem to be any decent documentation on the > subject I can find with googling so I'm hoping some more experienced > members > of this mailing list can point out what I'm doing wrong. > > I'm using cassandra 0.5, and I think the latest version of thrift. > > I generated the thrift erlang client code using: > > $ thrift -r --gen erl cassandra.thrift > > And compiled and copied that into my ebin area, along with the rest of the > thrift erlc library code. > > I start cassandra using its default config bin/cassandra -f and there are > no > apparent errors: > > $ bin/cassandra -f > Listening for transport dt_socket at address: 8888 > INFO - Sampling index for > /var/lib/cassandra/data/system/LocationInfo-9-Data.db > INFO - Replaying /var/lib/cassandra/commitlog/CommitLog-1267655779083.log > INFO - Log replay complete > INFO - Saved Token found: 141354730401634313333347303685581151939 > INFO - Starting up server gossip > INFO - Cassandra starting up... > > then after a few seconds, it displays this: > > Debugger failed to attach: timeout during handshake > > Then from an erl vm I try the following: > > rr(cassandra_types). > {ok, C} = thrift_client:start_link("localhost",8888, cassandra_thrift). > thrift_client:call( C, > 'insert', > [ "Keyspace1", > "1", > #columnPath{column_family="Standard1", column="email"}, > "[email protected]", > 1, > 1 > ] ). > > Unfortunately, although I get a cassandra_thrift client connection, the > call > to insert fails with : > > =ERROR REPORT==== 4-Mar-2010::07:57:50 === > ** Generic server <0.333.0> terminating > ** Last message in was {call,insert, > ["Keyspace1","1", > {columnPath,"Standard1",undefined,"email"}, > "[email protected]",1,1]} > ** When Server state == {state,cassandra_thrift, > {protocol,thrift_binary_protocol, > {binary_protocol, > {transport,thrift_buffered_transport,<0.334.0>}, > 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 > > Cassandra itself reports nothing. > > -- JT. >
