hadoop-hdfs zk部署

一.java环境配置.

1.cat /etc/hosts

2.下载java包,解压

tar -zxvf jdk-8u171-linux-x64.tar.gz  -C /opt/modules/

3. /etc/profile文件追加

export JAVA_HOME="/opt/modules/jdk1.8.0_171"

export PATH=$JAVA_HOME/bin:$PATH

3.source /etc/profile

4.java -version 测试.

二.添加hadoop用户

useradd hadoop && passwd hadoop

vim /etc/sudoers

hadoop ALL=(root) NOPASSWD:ALL

chown -R hadoop:hadoop /opt/modules

三.设置互信任免密登陆.(master1 操作执行)

四.zk集群部署.

1.cd /opt/

2.sudo tar -zxvf soft/zookeeper-3.4.12.tar.gz  -C ./

3. sudo mv zookeeper-3.4.12/ zookeeper

4. cp conf/zoo_sample.cfg conf/zoo.cfg

5.

6.cat /opt/modules/zookeeper/data/zData/myid

7../bin/zkServer.sh start