格式化namenode时报错

Question

root@ubuntu:/opt/hadoop-1.2.1/bin# hadoop namenode -format
Warning: $HADOOP_HOME is deprecated.

Error: Config file not found: /usr/lib/jvm/java-9-openjdk-amd64/conf/management/management.properties

自己安装的Oracle JDK，不是跟教程安装的openJDK，在/usr/local/路径下