本次为伪分布式部署
scp ~/Documents/bigfile/jdk/jdk-8u231-linux-x64.tar.gz xiaolei@192.168.56.116:~/jar/
sudo vim /etc/profile.d/java-path.sh
#!/bin/bash
### author:wangxiaolei
### 微信公众号:从入门到精通
export JAVA_HOME=/opt/java
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
source /etc/profile
查看
xiaolei@wang:~/jar$ java -version
java version "1.8.0_231"
Java(TM) SE Runtime Environment (build 1.8.0_231-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.231-b11, mixed mode)
$ sudo apt update
$ sudo apt install ssh
$ sudo apt install pdsh
sudo vim /etc/pdsh/rcmd_default
### 添加内容
ssh
Hadoop下载、解压
Hadoop https://mirrors.tuna.tsinghua.edu.cn/apache/hadoop/common/hadoop-3.2.1/hadoop-3.2.1.tar.gz
本地上传到虚拟机(服务器)
scp ~/Documents/bigfile/apache/hadoop-3.2.1.tar.gz xiaolei@192.168.56.116:~/jar/
scp ~/Documents/bigfile/jdk/jdk-8u231-linux-x64.tar.gz xiaolei@192.168.56.116:~/jar/
解压hadoop并移动
tar -zxf hadoop-3.2.1.tar.gz
sudo mv hadoop-3.2.1 /opt/hadoop
解压Java并移动
tar -zxf jdk-8u231-linux-x64.tar.gz
sudo mv jdk1.8.0_231/ /opt/java
$ ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
$ cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
$ chmod 0600 ~/.ssh/authorized_keys
ssh localhost
修改hadoop-env.sh内容
vim /opt/hadoop/etc/hadoop/hadoop-env.sh
JAVA_HOME=/opt/java
修改core-site.xml内容
vim /opt/hadoop/etc/hadoop/core-site.xml
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:9000</value>
</property>
</configuration>
修改hdfs-site.xml内容
vim /opt/hadoop/etc/hadoop/hdfs-site.xml
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
</configuration>
$ bin/hdfs namenode -format
$ sbin/start-dfs.sh
jps
http://localhost:9870/
http://虚拟机ip:9870/
<--暂不操作
vim /opt/hadoop/etc/hadoop/yarn-env.sh
JAVA_HOME=/opt/java
-->
vim /opt/hadoop/etc/hadoop/mapred-site.xml:
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
<property>
<name>mapreduce.application.classpath</name>
<value>$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/*:$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/lib/*</value>
</property>
</configuration>
vim /opt/hadoop/etc/hadoop/yarn-site.xml:
<configuration>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.nodemanager.env-whitelist</name>
<value>JAVA_HOME,HADOOP_COMMON_HOME,HADOOP_HDFS_HOME,HADOOP_CONF_DIR,CLASSPATH_PREPEND_DISTCACHE,HADOOP_YARN_HOME,HADOOP_MAPRED_HOME</value>
</property>
</configuration>
$ sbin/start-yarn.sh
jps
http://localhost:8088/
http://虚拟机ip:8088/
$ sbin/stop-dfs.sh
$ sbin/stop-yarn.sh
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