hadoop-3.3.0.tar.gz下载地址：Index of /dist/hadoop/common/hadoop-3.3.0https://archive.apache.org/dist/hadoop/common/hadoop-3.3.0/
macos安装步骤：
1）修改环境变量：
vi ~/.bash_profile
#hadoop export HADOOP_HOME=~/Work/hadoop-3.3.0 export PATH=$PATH:$HADOOP_HOME/bin export HADOOP_CONF_DIR=$HADOOP_HOME/etc/hadoop export HADOOP_MAPRED_HOME=$HADOOP_HOME export HADOOP_COMMON_HOME=$HADOOP_HOME export HADOOP_HDFS_HOME=$HADOOP_HOME export YARN_HOME=$HADOOP_HOME export HADOOP_CLASSPATH=$JAVA_HOME/lib/tools.jar export PATH=$JAVA_HOME/bin:$HADOOP_HOME/bin:$PATH #java export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_111.jdk/Contents/Home" export JRE_HOME="$JAVA_HOME/jre" export CLASSPATH=.:$JAVA_HOME export PATH=$PATH:/Users/wisdom_leo/Library/Tomcat/bin:$JAVA_HOME/bin:$JRE_HOME/bin export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH export LD_LIBRARY_PATH=/Library/Java/Extensions
2）修改配置文件：hadoop-3.3.0/etc/hadoop
hadoop-env.sh
core-site.xml
hdfs-site.xml
mapred-site.xml
yarn-site.xml
3）启动应用。hadoop-3.3.0/sbin
在mac的系统偏好设置-->共享中打开远程登录
./hdfs namenode -format
./start-dfs.sh
jps观察应用是否成功启动
4）查看namenode。在浏览器上输入http://localhost:9870/dfshealth.html#tab-overview
5）工程引入jar，jar路径：hadoop-3.3.0/share/hadoop
