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MapReduce, mail # user - Hadoop Dist structure doubts


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Re: Hadoop Dist structure doubts
Subroto 2012-06-06, 08:04
Thanks Jagat….
The tutorial is really nice ….

Cheers,
Subroto Sanyal

On Jun 6, 2012, at 9:47 AM, Jagat wrote:

> Hello Subroto ,
>
> There are multiple ways to install and set the environment variables for 2.x series.
> Download the latest tar in your computer for Hadoop 2.0.x and unzip it to some directory lets say HADOOP_PREFIX
>
> Export the following environment variables in your computer
>
> export HADOOP_PREFIX="/home/hadoop/software/hadoop-2.0.0-alpha"
> export PATH=$PATH:$HADOOP_PREFIX/bin
> export PATH=$PATH:$HADOOP_PREFIX/sbin
>
> export HADOOP_MAPRED_HOME=${HADOOP_PREFIX}
> export HADOOP_COMMON_HOME=${HADOOP_PREFIX}
> export HADOOP_HDFS_HOME=${HADOOP_PREFIX}
> export YARN_HOME=${HADOOP_PREFIX}
>
> A detailed discussion for this is present at Jira for Hadoop RPMs why this project structure etc.
>
> Few days back i wrote tutorial on how to install 2.x series , you can also have a look at that.
>
> Regards,
>
> Jagat Singh
>
> On Tue, Jun 5, 2012 at 7:12 PM, Subroto <[EMAIL PROTECTED]> wrote:
> Hi
>
> Following is the hadoop directory structure after extracting the tar ball. I would like to know where and to which folder I need to set the HADOOP_MAPRED_HOME, HADOOP_HDFS_HOME,HADOOP_COMMON_HOME,YARN_HOME etc so that this cluster can be accessed within the cluster and from outside as well.
>
> /usr/local/hadoop
>                bin
>                etc
>                        hadoop
>                include
>                example
>                lib
>                libexec
>                sbin
>                share
>                        doc
>                        hadoop
>                                common
>                                hdfs
>                                httpfs
>                                mapreduce
>                                tools
>                src
> Cheers,
> Subroto Sanyal
>