Today we live in the age of Big data.
Data volumes have outgrown the storage & processing capabilities of a single machine and the different types of data formats required to be analyzed have increased tremendously.
This brings 2 fundamental challenges:
- How to store and work with huge volumes & variety of data
- How to analyze these vast data points & use it for competitive advantage.
Hadoop fills this gap by overcoming both the challenges. Hadoop is based on research papers from Google & it was created by Doug Cutting, who named the framework after his son’s yellow stuffed toy elephant.
So What is Hadoop? It is a framework made up of:
- HDFS – Hadoop distributed file system
- Distributed computation tier using programming of MapReduce
- Sits on the low-cost commodity servers connected together called Cluster
- Consists of a Master Node or NameNode to control the processing
- Data Nodes to store & process the data
- JobTracker & TaskTracker to manage & monitor the jobs
Let us see why Hadoop has become so much popular now.
- Over the last decade, all the data computations were done by increasing the computing power of a single machine by adding the no of processors & increasing the RAM but they had physical limitations.
- As the data started growing beyond these capabilities, an alternative was required to handle these storage requirements for eBay (10 PB), Facebook (30 PB), Yahoo (170 PB), JPMC (150 PB) and increasing
- With a typical 75 MB/Sec disk data transfer rate, it was impossible to process such humongous data
- Scalability was limited by physical size & no or limited fault tolerance
- Additionally, various formats of data are being added to the organizations for analysis, which is not possible with traditional databases
How Hadoop addresses these challenges?
- Data is split into small blocks of 64 or 128MB and stored onto minimum 3 machines at a time to ensure data availability & reliability
- Many machines connected in cluster work parallel for the faster crunching of data
- If anyone machine fails, the work is assigned to other automatically
- MapReduce breaks complex tasks into smaller chunks to be executed in parallel
Benefits of using Hadoop as Big data platform are:
- Cheap storage – commodity servers to decrease the cost per terabyte
- Virtually unlimited scalability – new nodes can be added without any changes to existing data gives the ability to process any amount of data, so no archival necessary
- The speed of processing – tremendous parallel processing to reduce processing time
- Flexibility – schema-less, can store any data format – structured & unstructured ( audio, video, texts, csv, pdf, images, logs, clickstream data, social media)
- Fault tolerant – any node failure is covered by another node automatically
Later multiple products & components are added to Hadoop so it is now called an eco-system.
- Hive – SQL like interface
- Pig – data management language like commercial tools AbInitio, Informatica
- HBase – column-oriented database on top of HDFS
- Flume – real-time data streaming such as credit card transaction, videos
- Sqoop – SQL interface to RDBMS and HDFS
- Zookeeper – a DBA management for Hadoop
And multiple such products are getting added all the time from various companies like Cloudera, Hortonworks, Yahoo, etc.
How some of the world leaders are using Hadoop:
- Chevron collects large amounts of seismic data to find where they can get more oil resources
- JPMC uses it for storing more than 150 PB of data, over 3.5 Billion user log-ins for Credit scoring & Fraud detection
- eBay using it for real-time analysis and search of 9 PB data with 97 million active buyers, over 200 million items for Cross-Sell
- Nokia uses it to store data from phone, service logs to analyze how people interact with apps and usage patterns to address customer churn
- Walmart uses it to analyze customer behavior of over 200 million customer visits in a week
- UC Irvine Health hospitals are storing 9 million patients records over 22 years to build patients surveillance algorithms
- Manufacturers are using it for warranty analytics
Hadoop may not replace the existing data warehouses but it is becoming no 1 choice for Big data platform with the price/performance ratio.
Very informative and helpful.
ReplyDeleteThank you so much for informative and useful article. It really helps me.
ReplyDeleteThank you so much. It is easy to understand why and What is hadoop.
ReplyDeleteHadoop is the data software which is used for batch data processing and working with bulk data at a time in this era where social media and data maintenance has become a big problem. Hadoop helps in this area to maintain and organize data properly. For more information have a demo at hadoop training in hyderabad for point to point understanding of the comcepts.
DeleteReally Simplied version on Big Data ! Very Informative !
ReplyDeletethanks.....you made Hadoop look easy :)
ReplyDeleteHi Sandeep,
ReplyDeleteIts a great article for the beginners like us.
Doug Cutting child's toy change the world.
Hadoop is a greet framework and your article helped in clearing our concepts.
Thanks,
Chander Sharma
Your article provides a clear and concise summary.
ReplyDeleteThank you.
Wow ... Have been hearing about Big Data and Hadoop , this article opens the door to Big Data World.
ReplyDeleteNice article gives simplified high level understanding of Hadoop.
ReplyDeleteI find there are Lot of similarities between Hadoop and TERADATA database in terms of managing huge data and scalablity and Fault tolerance.
-- Aditya
Good Articles to read .WOW !!!
ReplyDeleteGood article and easy to understand Hadoop...
ReplyDeleteThanks for sharing this.
---Amit
Clear and precise information.Thank you for sharing
ReplyDeleteThank you for this.
ReplyDeleteThis is important information,
ReplyDeleteThanks for sharing this
Oracle PL SQL Database Training VA
Big Data Hadoop Training VA
thank you for giving valuable hadoop information.Hadoop online Training in Hyderabad
ReplyDeleteVery useful site for all the students and must be shareable site. thanks a lot for the post!!
ReplyDeleteMicrosoft Dynamics GP Training | Informatica training
Thank you so much for sharing this great information. Today I stand as a successful hadoop certified professional. Thanks to Big Data Training
ReplyDeleteNice article gives simplified high level understanding of Hadoop.
ReplyDeleteI find there are Lot of similarities between Hadoop and TERADATA database in terms of managing huge data and scalablity and Fault tolerance.
Best Big Data Hadoop Training in Hyderabad @ Kalyan Orienit
ReplyDeleteFollow the below links to know more knowledge on Hadoop
WebSites:
================
http://www.kalyanhadooptraining.com/
http://www.hyderabadhadooptraining.com/
http://www.bigdatatraininghyderabad.com/
Videos:
===============
https://www.youtube.com/watch?v=-_fTzrgzVQc
https://www.youtube.com/watch?v=Df2Odze87dE
https://www.youtube.com/watch?v=AOfX-tNkYyo
https://www.youtube.com/watch?v=Cyo3y0vlZ3c
https://www.youtube.com/watch?v=jOLSXx6koO4
https://www.youtube.com/watch?v=09mpbNBAmCo
Your posts is really helpful for me.Thanks for your wonderful post. I am very happy to read your post. AWS course chennai | AWS certification in chennai | AWS cerfication chennai
ReplyDeletevery nice blogs!!! i have to learning for lot of information for this sites...Sharing for wonderful information.Thanks for sharing this valuable information to our vision. You have posted a trust worthy blog keep sharing. cloud computing training in chennai | cloud computing training chennai | cloud computing course in chennai | cloud computing course chennai
ReplyDeleteThis is extremely helpful info!! Very good work. Everything is very interesting to learn and easy to understood. Thank you for giving information. VMWare Training in chennai | VMWare Training chennai | VMWare course in chennai | VMWare course chennai
ReplyDeleteHi, JAVA is not at all difficult all you need is to clear your concepts mainly because the concepts of JAVA programming have been taken from day to day life examples. CCNA Course in Chennai
ReplyDeleteLucid and vivid with illustrations! Thanks, Sandeep :-)
ReplyDeleteI'm very happy to visit this blog. SAP HANA Online Training
ReplyDeleteThank you for sharing !
ReplyDeletebig data classroom training
hadoop ónlinÉ training
free big data bootcamp
hadoop big data videos
Big data QA Tester training
Big data Analyst training
hii you are providing good information.Thanks for sharing if any one interested SAP APO
ReplyDeleteOnline training see below
http://www.sapapoonlinetraining.in/
Thanks for sharing your blog.It is interesting to read.I think that it will help many of them,who are in need of this type of information.
ReplyDeleteRegards,
Best Hadoop Training in Chennai | Hadoop course in Chennai
Thank for sharing this great Hadoop tutorials Blog post.
ReplyDeleteBig data Training
Thank for sharing.
ReplyDeleteHadoop-Big-Data-Administration
Thank you for sharing such great information.
ReplyDeletewebsphere training in chennai
• can any one suggest me about testing training institute with 100 % placement in adyar...
ReplyDeleteqlikview training in chennai
Thank you for sharing such great information !
ReplyDeletewebsphere training in chennai
Nice and thanks for sharing the data we provide the legal services in Hyderabad for more details refer at
ReplyDeletelawyers in hyderabad
The blog you shared is really good.
ReplyDeleteBig Data Hadoop is what's to come! Need to be a Big Data Hadoop Developer? Join TechandMate for the Big Data Hadoop Online Tutorial and learn MapReduce structure, HDFS ideas, Hadoop Cluster, Sqoop, Flume, Hive, Pig and YARN. https://goo.gl/QcZzka
This comment has been removed by the author.
ReplyDelete