Hadoop Hangover: Introduction To Apache Bigtop and Installing Hive, HBase and Pig

In the previous post we learnt how easy it was to install Hadoop with Apache Bigtop!
We know its not just Hadoop and there are sub-projects around the table! So, lets have a look at how to install Hive, Hbase and Pig in this post.


Before rowing your boat...
Please follow the previous post and get ready with Hadoop installed!
Follow the link for previous post:
http://femgeekz.blogspot.in/2012/06/hadoop-hangover-introduction-to-apache.html
also, the same can be found at DZone, developer site: http://www.dzone.com/links/hadoop_hangover_introduction_to_apache_bigtop_and.html


All Set?? Great! Head On..
Make sure all the services of Hadoop are running. Namely, JobTracker, SecondaryNameNode, TaskTracker, DataNode and NameNode. [standalone mode]


Hive with Bigtop:
The steps here are almost the same as Installing Hive as a separate project.
However, few steps are reduced.
The Hadoop installed in the previous post is Release 1.0.1


We had installed Hadoop with the following command
sudo apt-get install hadoop\*
Step 1: Installing Hive
We have installed Bigtop 0.3.0, and so issuing the following command installs all the hive components.
ie. hive, hive-metastore, hive-server. The daemons names are different in Bigtop 0.3.0.
sudo apt-get install hive\*
This installs all the hive components. After installing, the scripts must be able to create /tmp and /usr/hive/warehouseand HDFS doesn't allow these to be created while installing as it is unaware of the path to Java. So, create the directories if not created and grant the execute permissions.
In the hadoop directory, ie. /usr/lib/hadoop/
bin/hadoop fs -mkdir /tmp
bin/hadoop fs -mkdir /user/hive/warehouse
bin/hadoop -chmod g+x /tmp
bin/hadoop -chmod g+x /user/hive/warehouse


Step 2: The alternative directories could be/var/run/hiveand/var/lock/subsys
sudo mkdir /var/run/hive
sudo mkdir /var/lock/subsys


Step 3: Start the hive server, a daemon
sudo /etc/init.d/hive-server start
Image:

start hive-server

Step 4: Running Hive
Go-to the directory /usr/lib/hive.
See the Image below:
bin/hive

bin/hive

Step 5: Operations on Hive
Image: 

Basic hive operations

HBase with Bigtop:
Installing Hbase is similar to Hive.


Step 1: Installing HBase
sudo apt-get install hbase\*
Image: 

hbase-0.92.0

Step 2: Starting HMaster
sudo service hbase-master start
Image: 

Starting HMaster

Image: 

jps (HMaster started)

Step 3: Starting HBase shell
hbase shell
Image: 

start HBase shell

Step 4: HBase Operations
Image: 

HBase table operations

Image: 

list,scan,get,describe In HBase

Pig with Bigtop:
Installing Pig is similar too.


Step 1: Installing Pig
sudo apt-get install pig
Image: 

Installing Pig

Step 2: Moving a file to HDFS
Image: 

Moving a tab separated file "book.csv" to HDFS

Step 3: Installed Pig-0.9.2
Image: 

Pig installed Pig-0.9.2

Step 4: Starting the grunt shell
pig
Image: 

Starting Pig

Step 5: Pig Basic Operations
Image:

Basic Pig Operations

Image:

Job Completion

We saw that is it possible to install the subprojects and work with Hadoop, with no issues.
Apache Bigtop has its own spark! :)
There is a release coming BIGTOP-0.4.0 which is supposedly to fix the following issues:
https://issues.apache.org/jira/secure/ReleaseNote.jspa?version=12318889&styleName=Html&projectId=12311420
Source and binary files:
http://people.apache.org/~rvs/bigtop-0.4.0-incubating-RC0
Maven staging repo:
https://repository.apache.org/content/repositories/orgapachebigtop-279
Bigtop's KEYS file containing PGP keys we use to sign the release:
http://svn.apache.org/repos/asf/incubator/bigtop/dist/KEYS


Let us see how to install other sub-projects in the coming posts!
Until then, Happy Learning!! :):)

Hadoop Hangover : Introduction To Apache Bigtop and Playing With It (Installing Hadoop)!

Ah!! The name is everywhere, carried with the wind. Apache Hadoop!!
The BIG DATA crunching platform!
We all know how alien it can be at start too! Phew!! :o

Its my personal experience, nearly 11 months before, I was trying to install HBase, I faced few issues! The problem was version compatibility. Ex: "HBase some x.version" with "Hadoop some y.version".
This is a real issue because you will never know which package of what version blends well with the other, unless, someone has tested it. This testing again depends on the environment where they have set up and could be another issue.
There was a pressing demand for the management of distributions and then comes an open source project which attempts to create a fully integrated and tested Big Data management distribution, "Apache Bigtop".

Goals of Apache Bigtop:
-Packaging
-Deployment
-Integration Testing
of all the sub-projects of Hadoop. This project aims at system as a whole, than the individual project.

I love the way Doug Cutting quoted in the Keynote, back then, wherein he expressed the similarity between Hadoop and Linux kernel,and the corresponding similarity between the big stack of Hadoop ( Hive, Hbase, Pig, Avro, etc.) and the fully operational operating systems with its distributions (RedHat, Ubuntu, Fedora, Debian etc.). This is an awesome analogy! :)

Life is made easy with Bigtop:
Bigtop Hadoop distribution artifacts won't make you feel that you live in an alien world! After installing, you will get a chance to blend a Hadoop cluster in any mode, with the sub-projects of it. Its all for you to garnish next! :)

Setup Of Bigtop and Installing Hadoop:
It's time to welcome all your packages home. [I also mean /home/..]  ;)
I've tested on Ubuntu 11.04 and here goes a quick and easy installation process.

Step 1: Installing the GNU Privacy Guard key, a key management system to access all public key directories.
wget -O- http://www.apache.org/dist/incubator/bigtop/bigtop-0.3.0-incubating/repos/GPG-KEY-bigtop | sudo apt-key add -

Step 2: Get the repo file from the link http://www.apache.org/dist/incubator/bigtop/bigtop-0.3.0-incubating/repos/ubuntu/bigtop.list

• sudo wget -O /etc/apt/sources.list.d/bigtop.listhttp://www.apache.org/dist/incubator/bigtop/bigtop-0.3.0-incubating/repos/ubuntu/bigtop.list

• sudo gedit /etc/apt/sources.list.d/bigtop.list
  uncomment the mirror link near by. The first link worked for me.
  deb http://apache.01link.hk/incubator/bigtop/stable/repos/ubuntu/ bigtop contrib

Step 3: Updating the apt cache
sudo apt-get update

Step 4: Checking in the artifacts
sudo apt-cache search hadoop
Image: 

Search in the apt cache

Step 5: Set your JAVA_HOME
export JAVA_HOME=path_to_your_Java
export $JAVA_HOME in  ~/.bashrc

Step 6: Installing the complete Hadoop stack
sudo apt-get install hadoop\*
Image: (above)

Running Hadoop:

Step 1: Formatting the namendoe
sudo -u hdfs hadoop namenode -format
Image : 

Formatting the namenode

Step 2: Starting the Namenode, Datanode, Jobtracker, Tasktracker of Hadoop
for i in hadoop-namenode hadoop-datanode hadoop-jobtracker hadoop-tasktracker ; do sudo service $i start ; done
Now, the cluster is up and running.
Image :

Start all the services

Step 3: Creating a new directory in hdfs
sudo -u hdfs hadoop fs -mkdir /user/bigtop
bigtop is the directory name in the user $USER
sudo -u hdfs hadoop fs -chown $USER /user/bigtop
Image :

Create a directory in HDFS

Step 4: List the directories in file system
hadoop fs -lsr /
Image :

HDFS directories

Step 5: Running a sample pi example
hadoop jar /usr/lib/hadoop/hadoop-examples.jar pi 10 1000
Image :

Running a sample program

Job Completed!

Enjoy with your cluster! :)

We shall see what more blending could be done with Hadoop (with Hive, Hbase, etc.) in the next post!

Until then, 

Happy Learning!! :):)