1./etc/profile
JAVA_HOME=/usr/java/jre1.8/bin
CLASSPATH=$JAVA_HOME/lib/
PATH=$PATH:$JAVA_HOME/bin
export PATH JAVA_HOME CLASSPATH
export HADOOP_HOME=/tmp/hadoop/hadoop-2.6.5/
export PATH=$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$PATH
export PATH=$PATH:/usr/java/jre1.8/bin
2.
[root@hadoop01 hadoop]# which java
/usr/java/jre1.8/bin/java
3.
[root@hadoop01 hadoop]# java -version
java version "1.8.0_221"
Java(TM) SE Runtime Environment (build 1.8.0_221-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.221-b11, mixed mode)
能改的都改了, hadoop里的变量也是这个,仍然无法解决问题。
但是hadoop 服务是没有问题