链接：https://pan.baidu.com/s/1NhqwLzX7NPPed12T94pohQ 

提取码：tam9 

 

(1)vim /usr/local/hadoop-3.2.2/etc/hadoop/hadoop-env.sh

export  JAVA_HOME=/usr/lib/jvm/jdk-15.0.2

 

(2) vim /usr/local/hadoop-3.2.2/etc/hadoop/core-site.xml

<configuration>

<property>

<name>hadoop.tmp.dir</name>

<value>file:/usr/local/hadoop-3.2.2/tmp</value>

</property>

<property>

<name>fs.defaultFS</name>

<value>hdfs://localhost:9000</value>

</property>

</configuration>

 

(3) vim /usr/local/hadoop-3.2.2/etc/hadoop/hdfs-site.xml

<configuration>

<property>

<name>dfs.namenode.name.dir</name>

<value>file:/usr/local/hadoop-3.2.2/hadoop_data/hdfs/namenode</value>

</property>

<property>

<name>dfs.datanode.data.dir</name>

<value>file:/usr/local/hadoop-3.2.2/hadoop_data/hdfs/datanode</value>

</property>

</configuration>

 

(4) vim /usr/local/hadoop-3.2.2/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>

 

(5) vim /usr/local/hadoop-3.2.2/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>

 

(6)vim .bashrc

#Java Enviromemt

export JAVA_HOME=/usr/lib/jvm/jdk-15.0.2

export PATH=${JAVA_HOME}/bin:$PATH

#Hadoop Enviroment

export HADOOP_HOME=/usr/local/hadoop-3.2.2

export HADOOP_MAPRED_HOME=$HADOOP_HOME