Error: Could not find or load main class org.apache.hadoop.mapred.YarnChild

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時間 2021-07-30 15:01:49
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  1. 執行hadoop classpath
  2. 在hadoop配置檔案 yarn-site中新增以下配置 <property> <name>yarn.application.classpath</name>
            <value>/home/hadoop/hadoop-3.3.1/etc/hadoop:/home/hadoop/hadoop-3.3.1/share/hadoop/common/lib/:/home/hadoop/hadoop-3.3.1/share/hadoop/common/:/home/hadoop/hadoop-3.3.1/share/hadoop/hdfs:/home/hadoop/hadoop-3.3.1/share/hadoop/hdfs/lib/:/home/hadoop/hadoop-3.3.1/share/hadoop/hdfs/:/home/hadoop/hadoop-3.3.1/share/hadoop/mapreduce/:/home/hadoop/hadoop-3.3.1/share/hadoop/yarn:/home/hadoop/hadoop-3.3.1/share/hadoop/yarn/lib/:/home/hadoop/hadoop-3.3.1/share/hadoop/yarn/*</value>
        </property>
  3. 執行 source /etc/profile
  4. 重啟生效
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