配置文件：
spark-env.sh
export SCALA_HOME=/usr/local/scala
export SPARK_WORKING_MEMORY=1g
export SPARK_MASTER_IP=mac
export HADOOP_HOME=/tim/hadoop
export HADOOP_CONF_DIR=$HADOOP_HOME/etc/hadoop
export SPARK_DIST_CLASSPATH=$(hadoop classpath)
export LD_LIBRARY_PATH=$HADOOP_HOME/lib/native
slaves：
node1
node2
spark-defaults.conf
spark.yarn.jars hdfs://rhel01/spark/jars/*