Cloudera-未设置JAVA_HOME [英] Cloudera - JAVA_HOME not set

问题描述

关于Ubuntu，我是一个相当新手，但是我尝试遵循位于此处。

I am pretty novice when it comes to Ubuntu but I am trying to follow along with the install instructions for Cloudera located here.

在步骤1，我遇到以下错误：

At step 1, I am getting to following error:

brock@brock-hpserver:~$ sudo -u hdfs hdfs namenode -format
Error: JAVA_HOME is not set and could not be found.

但是，尽管我可能错了，但我相信我已经正确设置了一切：

However, although I could be wrong, I believe I have everything set up properly:

brock@brock-hpserver:~$ echo $JAVA_HOME
/usr/lib/jvm/java-6-openjdk-amd64
brock@brock-hpserver:~$ echo $PATH
/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:JAVA_HOME/bin

最后是我的Java版本：

And finally my java version:

brock@brock-hpserver:~$ java -version
java version "1.6.0_24"
OpenJDK Runtime Environment (IcedTea6 1.11.5) (6b24-1.11.5-0ubuntu1~12.04.1)
OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode)

任何帮助将不胜感激。我只是想在家里的备用计算机上闲逛并学习Hadoop。

Any help will be greatly appreciated. I simply just want to poke around and learn Hadoop on a spare machine at home.

推荐答案

我遇到了同样的问题，只是添加将 JAVA_HOME = directory_to_JDK 设置到 / etc / environment 中，它就可以工作。

I met the same problem, just add JAVA_HOME="directory_to_JDK" setting into the /etc/environment, and it works.

这篇关于Cloudera-未设置JAVA_HOME的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！