hadoop啟動報錯：localhost: ssh: Could not resolve hostname localhost - 碼上快樂

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hadoop啟動報錯：localhost: ssh: Could not resolve hostname localhost

本文轉載自查看原文 2018-11-07 21:47 1068 大數據

hadoop啟動journalnode時報錯：localhost: ssh: Could not resolve hostname localhost: Temporary failure in name resolution

解決辦法：將高亮部分補充到/etc/profile中，然后source生效

export JAVA_HOME=/opt/module/jdk1.8.0_144 export HADOOP_HOME=/opt/ha/hadoop-2.7.4

export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native

export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib"

export PATH=$PATH:$JAVA_HOME/bin:$HADOOP_HOME/bin

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