in flink-connector-cassandra/src/main/java/org/apache/flink/streaming/connectors/cassandra/CassandraSink.java [166:173]
public CassandraSink<IN> disableChaining() {
if (useDataStreamSink) {
sink1.disableChaining();
} else {
sink2.disableChaining();
}
return this;
}