Hadoop3.3.1 集群配置笔记

https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/SingleCluster.html#Fully-Distributed_Operation

https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/ClusterSetup.html#Purpose

1.HDFS

2.YARN

3.MapReduce

echo $PATH

环境变量目录下的脚本可全局访问

#!/bin/bash

#1．判断参数个数
if [ $# -lt 1 ]
then
	echo Not Enough Arguement!
	exit;
fi

#2．遍)历集群所有机器
for host in hadoop102 hadoop103 hadoop104
do
	echo ===============$host=====================
	#3．遍历所有目录，挨个发送
	
	for file in $@
	do
		#4．判断文件是否存在
		if [