Installing Apache Zeppelin (Local Mode)

Hi Folks,
Playing around with Apache Zepplin today.

Installation Steps Involved
a) Install Maven
b) Install Git
c) Clone the Zeppelin Repository (https://github.com/apache/incubator-zeppelin)
d) mvn install -DskipTests

And vola you have Apache Zeppelin installed

Start/Stop Zeppelin

bin/zeppelin-daemon.sh start

bin/zeppelin-daemon.sh stop

Installing Hadoop 2.x on MAC (Yosemite)

After breaking my head on several videos and blogs i finally got it right.
To install hadoop 2.x on mac i would recommend you have
a) Java Installed (If java is not installed install JAVA JDK)
b) Password-less ssh
(Check by typing down below)

ssh localhost

If password-less ssh is not enabled
Ensure Remote Login under System Preferences -> Sharing is checked to enable SSH.

ssh-keygen -t rsa -P ""

cat $HOME/.ssh/id_rsa.pub >> $HOME/.ssh/authorized_keys

ssh localhost

(Make sure you are able to ssh password less and while generating keys make sure its blank)
(For this tutorial we will configure Hadoop in psedu0-distributed mode -- http://hadoop.apache.org/docs/r2.7.0/hadoop-project-dist/hadoop-common/SingleCluster.html#Pseudo-Distributed_Operation)

Download Hadoop
Extract Hadoop

tar -xvzf ~/Downloads/hadoop-2.7.0.tar.gz

And edit the following in the configuration files

	edit: etc/hadoop/core-site.xml:
	<configuration>
	<property>
	<name>fs.defaultFS</name>
	<value>hdfs://localhost:9000</value>
	</property>
	</configuration>
	edit: etc/hadoop/hdfs-site.xml:
	<configuration>
	<property>
	<name>dfs.replication</name>
	<value>1</value>
	</property>
	</configuration>

view raw gistfile1.txt hosted with ❤ by GitHub

	format namenode:
	bin/hdfs namenode -format
	start dfs:
	sbin/start-dfs.sh
	Create user directories
	bin/hdfs dfs -mkdir /user
	bin/hdfs dfs -mkdir /user/<username>
	Testing MapReduce
	bin/hdfs dfs -put etc/hadoop input
	bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.0.jar grep input output 'dfs[a-z.]+'
	Examimne Output
	bin/hdfs dfs -cat output/*
	Namenode UI: http://localhost:50070/
	RM UI : http://localhost:8088

view raw gistfile1.txt hosted with ❤ by GitHub

And Voilà you have a petit Hadoop cluster for yourself.