on typing java -version it is giving below error bash: /usr/bin/java: cannot execute binary file: Exec format error
I dont know what to do I want to install hadoop but I am unable to complete java installation
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2Possible duplicate of How can I install Sun/Oracle's proprietary Java JDK 6/7/8 or JRE? – Pilot6 Mar 01 '16 at 15:41
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That error generally means that the java package you have is not right type for your system. Typically this happens when a system of x86 tries to read x64-based files.
Faron
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It could be vice versa. He should see whether the file(JAR or class) is not corrupt also in some other system where Java is up and running. – Ashu Mar 01 '16 at 15:47
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Seems some issue with your OpenJDK(default jdk) that comes with ubuntu. I have hadoop 2 installed - single node cluster on my ubuntu box. You can follow these steps to install Oracle Java 8 which is compatible with Hadoop2(MRv2). Open terminal(Ctrl+Alt+T)
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
then verify
java -version
and then setup env variables
sudo apt-get install oracle-java8-set-default
And if you want you can refer to my blog about setting up Hadoop(MRv1 or MRv2) which contains pointers to some good blogs also.
Ashu
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