spark-env.sh里加上
export SPARK_MASTER_IP=127.0.0.1
export SPARK_MASTER_PORT=7077
export SPARK_LOCAL_IP=127.0.0.1

用jdk1.8编译的,结果用jdk1.7运行
​​​http://stackoverflow.com/questions/24852807/spark-streaming-stateful-network-word-count​