[atguigu@hadoop102 hadoop]$ vim yarn-site.xml

1. 16:09 · Oct 11, 2025 · Sat

   [atguigu@hadoop102 hadoop]$ vim yarn-site.xml
   文件内容如下：
   <?xml version="1.0" encoding="UTF-8"?>
   <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
   <configuration>
   <!-- 指定MR走 shuffle -->
   <property>
   <name>yarn.nodemanager.aux-services</name>
   <value>mapreduce_shuffle</value>
   </property>
   <!-- 指定ResourceManager的地址-->
   <property>
   <name>yarn.resourcemanager.hostname</name>
   <value>hadoop103</value>
   </property>
   <!-- 环境变量的继承 -->
   <property>
   <name>yarn.nodemanager.env-whitelist</name>
   <value>JAVA_HOME,HADOOP_COMMON_HOME,HADOOP_HDFS_HOME,HADOOP_CO
   NF_DIR,CLASSPATH_PREPEND_DISTCACHE,HADOOP_YARN_HOME,HADOOP_MAP
   RED_HOME</value>
   </property>
   </configuration>