Hadoop集群配置执行hdfs namenode -format出错

# hadoop namenode -format
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.

/usr/hadoop/bin/hdfs: line 304: /root/usr/java/jdk1.8.0_65/bin/java: No such file or directory
/usr/hadoop/bin/hdfs: line 304: exec: /root/usr/java/jdk1.8.0_65/bin/java: cannot execute: No such file or directory


不知道是不是jdk的安装出现了什么问题，我打开看/usr/java/jdk1.8.0_65/bin/java里的文件乱了码
求助ing

肯定jdk的问题。
首先不要在Linux中存在多个jdk版本
第二最好使用jdk7