执行完hadoop namenode -format报$HADOOP_HOME is deprecated.

[root@localhost bin]# hadoop namenode -format

Warning: $HADOOP_HOME is deprecated.

/opt/hadoop-1.2.1/bin/hadoop: line 350: /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.75.x86_64/bin/java: 没有那个文件或目录

/opt/hadoop-1.2.1/bin/hadoop: line 434: /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.75.x86_64/bin/java: 没有那个文件或目录

/opt/hadoop-1.2.1/bin/hadoop: line 434: exec: /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.75.x86_64/bin/java: cannot execute: 没有那个文件或目录