Hadoop初学(2)_启动Hadoop报JAVA_HOME未设置
2013-12-29 11:57
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继上一篇文章安装完毕java之后,在启动hadoop的时候,遇到提示JAVA_HOME未设置,如下图所示
但是通过检查,在/etc/profile中,确实已经设定了JAVA_HOME。经过google之后,发现是因为在hadoop的设置有些问题。
首先找到${HADOOP_ROOT}文件夹下的conf文件夹下,其中有一个名为hadoop-env.sh的文件,在其中,有一条关于JAVA_HOME的代码是被注释掉的,需要将此行注释打开,并改为自己的JAVA_HOME地址,之后,再进行start,就可以了。
但是通过检查,在/etc/profile中,确实已经设定了JAVA_HOME。经过google之后,发现是因为在hadoop的设置有些问题。
首先找到${HADOOP_ROOT}文件夹下的conf文件夹下,其中有一个名为hadoop-env.sh的文件,在其中,有一条关于JAVA_HOME的代码是被注释掉的,需要将此行注释打开,并改为自己的JAVA_HOME地址,之后,再进行start,就可以了。
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