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From Alexander Pivovarov <apivova...@gmail.com>
Subject Re: problems with Hadoop instalation
Date Wed, 29 Oct 2014 23:05:41 GMT
Are RHEL7 based OSs supported?


On Wed, Oct 29, 2014 at 3:59 PM, David Novogrodsky <
david.novogrodsky@gmail.com> wrote:

> All,
>
> I am new to Hadoop so any help would be appreciated.
>
> I have a question for the mailing list regarding Hadoop.  I have installed
> the most recent stable version (2.4.1) on a virtual machine running CentOS
> 7.  I have tried to run this command
> %>Hadoop -fs ls but without success.
>
> ​The question is, what does Hadoop consider a valid JAVA_HOME directory?
> And where should the JAVA_HOME directory variable be defined?  I installed
> Java using the package manager yum.  I installed the most recent version,
> detailed below.​
>
>
> ​T​
> his is in my .bashrc file
> # The java implementation to use.
> export JAVA_HOME=/usr/lib/jvm/jre-1.7.0-openjdk.x86_64
>
>
> [david@localhost ~]$ hadoop fs -ls
> /usr/local/hadoop/bin/hadoop: line 133:
> /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java: No such file or directory
>
>
> then I tried this value for JAVA_HOME
> ​ in my .bashrc file.
> /usr/bin/Java.
> ​
> [david@localhost ~]$ which java
> /usr/bin/java
> [david@localhost ~]$ java -version
> java version "1.7.0_71"
> OpenJDK Runtime Environment (rhel-2.5.3.1.el7_0-x86_64 u71-b14)
> OpenJDK 64-Bit Server VM (build 24.65-b04, mixed mode)
>
> here is the result:
> [david@localhost ~]$hadoop fs -ls
> /usr/local/hadoop/bin/hadoop: line 133: /usr/bin/java/bin/java: Not a
> directory
> /usr/local/hadoop/bin/hadoop: line 133: exec: /usr/bin/java/bin/java:
> cannot execute: Not a directory
>
> David Novogrodsky
>
>
>

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