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I installed hadoop but I'm getting the following error. Can anyone solve this?

hadoop@ramesh-H61M-S2P-B3:~$ hadoop -version
Warning: $HADOOP_HOME is deprecated.

/home/ramesh/work/hadoop-1.1.2/bin/hadoop: line 320: /usr/lib/jvm/java-1.6.0-openjdk-amd64/bin/java: No such file or directory
/home/ramesh/work/hadoop-1.1.2/bin/hadoop: line 390: /usr/lib/jvm/java-1.6.0-openjdk-amd64/bin/java: No such file or directory
hadoop@ramesh-H61M-S2P-B3:~$
Parto
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Ramesh Rams
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2 Answers2

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First, you are using wrong command. Correct one is hadoop version ( in hadoop 2.4.1)

It seems that java path is not set. It is required to run hadoop.

Type java -version in the terminal. You should be able to see output of Java Version installed. If not, install java jdk

Type sudo apt-get install openjdk-7-jdk and install Java OpenJDK.

Now set JAVA_HOME variable in

1. /etc/environment file

Open /etc/environment by typing sudo gedit /etc/environment in terminal.

At the end, Paste this line export JAVA_HOME="/usr/lib/jvm/java-7-openjdk-amd64/" where this is the java path. Usually this is where java is installed.

2. .bashrc file (different for each user)

Open .bashrc file by typing sudo gedit ~/.bashrc in terminal.
At the end, Paste this export JAVA_HOME="/usr/lib/jvm/java-7-openjdk-amd64/" where this is the java path.

3. Now reload settings by typing source /etc/environment and source ~/.bashrc in the terminal

Test it by typing echo $JAVA_HOME in terminal , it should show your java home directory.

Do the same for to set HADOOP_HOME variable also.

kishorer747
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0

Don't worry about the $HADOOP_HOME is deprecated warning for now. Your issue is that Hadoop doesn't know where your java is installed, it's looking at a path that doesn't exist.

One of the steps of installing Hadoop is editing the file /home/ramesh/work/hadoop-1.1.2/conf/hadoop-env.sh and changing the JAVA path to point to the correct path on your machine, and then running that script. Did you do this step?

I think you're the same user that asked the other question here: Not getting `hadoop -version`, and I mentioned hadoop-env.sh in my answer. Are you following a guide to install Hadoop? Make sure you're following one. Most guides online will tell you about these steps.

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Alaa Ali
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