无法读取key_validation_class ='CompositeType（UTF8Type，UTF8Type）'

Question

我试图读取cassandra 1.1.6。这是cassandra-cli中的脚本

CREATE COLUMN FAMILY aaa
with column_type = 'Standard'
and comparator = 'UTF8Type'
and default_validation_class = 'UTF8Type'
and key_validation_class = 'CompositeType(UTF8Type,UTF8Type)';

当我尝试用节俭阅读

时

c1.getColumn().getValue()

或

client.get_slice(toByteBuffer(rowKey), parent, predicate, ConsistencyLevel.ONE);

我收到以下例外：

Exception in thread "main" InvalidRequestException(why:Not enough bytes to read value of component 0)