Cassandra Storage Engine - Cannot connect to tables with multiple Keys

cqlsh> USE mariadbtest2;
cqlsh:mariadbtest2> create columnfamily cf2 ( pk varchar, data1 varchar, data2 bigint, PRIMARY KEY (pk ,data1));

MariaDB [test2]> create table t2 (pk varchar(36) primary key, data1 varchar(60), data2 bigint) engine=cassandra thrift_host='IP_ADDRESS' keyspace='mariadbtest2' column_family='cf2';
ERROR 1429 (HY000): Unable to connect to foreign data source: Column family cf2 not found in keyspace mariadbtest2

Works fine with only one primary key.