This document provides an overview of Hadoop, a tool for processing large datasets across clusters of computers. It discusses why big data has become so large, including exponential growth in data from the internet and machines. It describes how Hadoop uses HDFS for reliable storage across nodes and MapReduce for parallel processing. The document traces the history of Hadoop from its origins in Google's file system GFS and MapReduce framework. It provides brief explanations of how HDFS and MapReduce work at a high level.
Hadoop is the popular open source like Facebook, Twitter, RFID readers, sensors, and implementation of MapReduce, a powerful tool so on.Your management wants to derive designed for deep analysis and transformation of information from both the relational data and thevery large data sets. Hadoop enables you to unstructuredexplore complex data, using custom analyses data, and wants this information as soon astailored to your information and questions. possible.Hadoop is the system that allows unstructured What should you do? Hadoop may be the answer!data to be distributed across hundreds or Hadoop is an open source project of the Apachethousands of machines forming shared nothing Foundation.clusters, and the execution of Map/Reduce It is a framework written in Java originallyroutines to run on the data in that cluster. Hadoop developed by Doug Cutting who named it after hishas its own filesystem which replicates data to sons toy elephant.multiple nodes to ensure if one node holding data Hadoop uses Google’s MapReduce and Google Filegoes down, there are at least 2 other nodes from System technologies as its foundation.which to retrieve that piece of information. This It is optimized to handle massive quantities of dataprotects the data availability from node failure, which could be structured, unstructured orsomething which is critical when there are many semi-structured, using commodity hardware, thatnodes in a cluster (aka RAID at a server level). is, relatively inexpensive computers. This massive parallel processing is done with greatWhat is Hadoop? performance. However, it is a batch operation handling massive quantities of data, so theThe data are stored in a relational database in your response time is not immediate.desktop computer and this desktop computer As of Hadoop version 0.20.2, updates are nothas no problem handling this load. possible, but appends will be possible starting inThen your company starts growing very quickly, version 0.21.and that data grows to 10GB. Hadoop replicates its data across differentAnd then 100GB. computers, so that if one goes down, the data areAnd you start to reach the limits of your current processed on one of the replicated computers.desktop computer. Hadoop is not suitable for OnLine Transaction So you scale-up by investing in a larger computer, Processing workloads where data are randomly and you are then OK for a few more months. accessed on structured data like a relational When your data grows to 10TB, and then 100TB. database.Hadoop is not suitable for OnLineAnd you are fast approaching the limits of that Analytical Processing or Decision Support Systemcomputer. workloads where data are sequentially accessed onMoreover, you are now asked to feed your structured data like a relational database, to application with unstructured data coming from generate reports that provide business sources intelligence. Hadoop is used for Big Data. It complements OnLine Transaction Processing and OnLine Analytical Pro
Hadoop is the popular open source like Facebook, Twitter, RFID readers, sensors, and implementation of MapReduce, a powerful tool so on.Your management wants to derive designed for deep analysis and transformation of information from both the relational data and thevery large data sets. Hadoop enables you to unstructuredexplore complex data, using custom analyses data, and wants this information as soon astailored to your information and questions. possible.Hadoop is the system that allows unstructured What should you do? Hadoop may be the answer!data to be distributed across hundreds or Hadoop is an open source project of the Apachethousands of machines forming shared nothing Foundation.clusters, and the execution of Map/Reduce It is a framework written in Java originallyroutines to run on the data in that cluster. Hadoop developed by Doug Cutting who named it after hishas its own filesystem which replicates data to sons toy elephant.multiple nodes to ensure if one node holding data Hadoop uses Google’s MapReduce and Google Filegoes down, there are at least 2 other nodes from System technologies as its foundation.which to retrieve that piece of information. This It is optimized to handle massive quantities of dataprotects the data availability from node failure, which could be structured, unstructured orsomething which is critical when there are many semi-structured, using commodity hardware, thatnodes in a cluster (aka RAID at a server level). is, relatively inexpensive computers. This massive parallel processing is done with greatWhat is Hadoop? performance. However, it is a batch operation handling massive quantities of data, so theThe data are stored in a relational database in your response time is not immediate.desktop computer and this desktop computer As of Hadoop version 0.20.2, updates are nothas no problem handling this load. possible, but appends will be possible starting inThen your company starts growing very quickly, version 0.21.and that data grows to 10GB. Hadoop replicates its data across differentAnd then 100GB. computers, so that if one goes down, the data areAnd you start to reach the limits of your current processed on one of the replicated computers.desktop computer. Hadoop is not suitable for OnLine Transaction So you scale-up by investing in a larger computer, Processing workloads where data are randomly and you are then OK for a few more months. accessed on structured data like a relational When your data grows to 10TB, and then 100TB. database.Hadoop is not suitable for OnLineAnd you are fast approaching the limits of that Analytical Processing or Decision Support Systemcomputer. workloads where data are sequentially accessed onMoreover, you are now asked to feed your structured data like a relational database, to application with unstructured data coming from generate reports that provide business sources intelligence. Hadoop is used for Big Data. It complements OnLine Transaction Processing and OnLine Analytical Pro
Introduction to Big Data & Hadoop Architecture - Module 1Rohit Agrawal
Learning Objectives - In this module, you will understand what is Big Data, What are the limitations of the existing solutions for Big Data problem; How Hadoop solves the Big Data problem, What are the common Hadoop ecosystem components, Hadoop Architecture, HDFS and Map Reduce Framework, and Anatomy of File Write and Read.
The Apache Hadoop software library is a framework that allows for the distributed processing of large data sets across clusters of computers using a simple programming model. It is designed to scale up from single servers to thousands of machines, each offering local computation and storage. Rather than rely on hardware to deliver high-avaiability, the library itself is designed to detect and handle failures at the application layer, so delivering a highly-availabile service on top of a cluster of computers, each of which may be prone to failures.
What are Hadoop Components? Hadoop Ecosystem and Architecture | EdurekaEdureka!
YouTube Link: https://youtu.be/ll_O9JsjwT4
** Big Data Hadoop Certification Training - https://www.edureka.co/big-data-hadoop-training-certification **
This Edureka PPT on "Hadoop components" will provide you with detailed knowledge about the top Hadoop Components and it will help you understand the different categories of Hadoop Components. This PPT covers the following topics:
What is Hadoop?
Core Components of Hadoop
Hadoop Architecture
Hadoop EcoSystem
Hadoop Components in Data Storage
General Purpose Execution Engines
Hadoop Components in Database Management
Hadoop Components in Data Abstraction
Hadoop Components in Real-time Data Streaming
Hadoop Components in Graph Processing
Hadoop Components in Machine Learning
Hadoop Cluster Management tools
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This is an updated version of Amr's Hadoop presentation. Amr gave this talk recently at NASA CIDU event, TDWI LA Chapter, and also Netflix HQ. You should watch the powerpoint version as it has animations. The slides also include handout notes with additional information.
Hadoop Cluster Configuration and Data Loading - Module 2Rohit Agrawal
Learning Objectives - In this module, you will learn the Hadoop Cluster Architecture and Setup, Important Configuration files in a Hadoop Cluster, Data Loading Techniques.
This presentation accompanied a practical demonstration of Amazon's Elastic Computing services to CNET students at the University of Plymouth on 16/03/2010.
The practical demonstration involved an obviously parallel problem split on 5 Medium size AMIs. The problem was the calculation of the Clustering Coefficient and the Mean Path Length (Based on the original work done by Watts and Strogatz) for large networks. The code was written in Python taking advantage of the scipy, pyparallel and networkx toolkits
Introduction to Big Data & Hadoop Architecture - Module 1Rohit Agrawal
Learning Objectives - In this module, you will understand what is Big Data, What are the limitations of the existing solutions for Big Data problem; How Hadoop solves the Big Data problem, What are the common Hadoop ecosystem components, Hadoop Architecture, HDFS and Map Reduce Framework, and Anatomy of File Write and Read.
The Apache Hadoop software library is a framework that allows for the distributed processing of large data sets across clusters of computers using a simple programming model. It is designed to scale up from single servers to thousands of machines, each offering local computation and storage. Rather than rely on hardware to deliver high-avaiability, the library itself is designed to detect and handle failures at the application layer, so delivering a highly-availabile service on top of a cluster of computers, each of which may be prone to failures.
What are Hadoop Components? Hadoop Ecosystem and Architecture | EdurekaEdureka!
YouTube Link: https://youtu.be/ll_O9JsjwT4
** Big Data Hadoop Certification Training - https://www.edureka.co/big-data-hadoop-training-certification **
This Edureka PPT on "Hadoop components" will provide you with detailed knowledge about the top Hadoop Components and it will help you understand the different categories of Hadoop Components. This PPT covers the following topics:
What is Hadoop?
Core Components of Hadoop
Hadoop Architecture
Hadoop EcoSystem
Hadoop Components in Data Storage
General Purpose Execution Engines
Hadoop Components in Database Management
Hadoop Components in Data Abstraction
Hadoop Components in Real-time Data Streaming
Hadoop Components in Graph Processing
Hadoop Components in Machine Learning
Hadoop Cluster Management tools
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
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Facebook: https://www.facebook.com/edurekaIN/
Twitter: https://twitter.com/edurekain
LinkedIn: https://www.linkedin.com/company/edureka
Castbox: https://castbox.fm/networks/505?country=in
This is an updated version of Amr's Hadoop presentation. Amr gave this talk recently at NASA CIDU event, TDWI LA Chapter, and also Netflix HQ. You should watch the powerpoint version as it has animations. The slides also include handout notes with additional information.
Hadoop Cluster Configuration and Data Loading - Module 2Rohit Agrawal
Learning Objectives - In this module, you will learn the Hadoop Cluster Architecture and Setup, Important Configuration files in a Hadoop Cluster, Data Loading Techniques.
This presentation accompanied a practical demonstration of Amazon's Elastic Computing services to CNET students at the University of Plymouth on 16/03/2010.
The practical demonstration involved an obviously parallel problem split on 5 Medium size AMIs. The problem was the calculation of the Clustering Coefficient and the Mean Path Length (Based on the original work done by Watts and Strogatz) for large networks. The code was written in Python taking advantage of the scipy, pyparallel and networkx toolkits
I have studied on Big Data analysis and found Hadoop is the best technology and most popular as well for it's distributed data processing approaches. I have gathered all possible information about various Hadoop distributions available in the market and tried to describe most important tools and their functionality in the Hadoop echosystems in this slide show. I have also tried to discuss about connectivity with language R interm of data analysis and visualization perspective. Hope you will be enjoying the whole!
Explores the notion of "Hadoop as a Data Refinery" within an organisation, be it one with an existing Business Intelligence system or none - looks at 'agile data' as a a benefit of using Hadoop as the store for historical, unstructured and very-large-scale datasets.
The final slides look at the challenge of an organisation becoming "data driven"
Integrate Hue with your Hadoop cluster - Yahoo! Hadoop Meetupgethue
This talk will describe how Hue can be integrated with existing Hadoop deployments with minimal changes/disturbances. Romain will cover details on how Hue can leverage the existing authentication system and security model of your company. He will also cover the Hive/Shark/Pig/Oozie best practice setup for Hue.
http://www.meetup.com/hadoop/events/125191612/
Hadoop World 2011: The Hadoop Stack - Then, Now and in the Future - Eli Colli...Cloudera, Inc.
Many people refer to Apache Hadoop as their system of choice for big data management but few actually use just Apache Hadoop. Hadoop has become a proxy for a much larger system which has HDFS storage at its core. The Apache Hadoop based "big data stack" has changed dramatically over the past 24 months and will chance even more over the next 24 months. This talk talks about trends in the evolution of the Hadoop stack, change in architecture and changes in the kinds of use cases that are supported. It will also talk about the role of interoperability and cohesion in the Apache Hadoop stack and the role of Apache Bigtop in this regard.
Simplified Data Management And Process Scheduling in HadoopGetInData
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Proper data management and process scheduling are challenges that many data-driven companies under-prioritize. Although it might not cause troubles in short run, it becomes a nightmare when your cluster grows. However, even when you realize this problem, you might not see that possible solutions are so close... In this talk, we share how we simplified our data management and process scheduling in Hadoop with useful (but less adopted) open-source tools. We describe how Falcon, HCatalog, Avro, HDFS FsImage, CLI tools and tricks helped us to address typical problems related to orchestration of data pipelines and discovery, retention, lineage of datasets.
The Hadoop Cluster Administration course at Edureka starts with the fundamental concepts of Apache Hadoop and Hadoop Cluster. It covers topics to deploy, manage, monitor, and secure a Hadoop Cluster. You will learn to configure backup options, diagnose and recover node failures in a Hadoop Cluster. The course will also cover HBase Administration. There will be many challenging, practical and focused hands-on exercises for the learners. Software professionals new to Hadoop can quickly learn the cluster administration through technical sessions and hands-on labs. By the end of this six week Hadoop Cluster Administration training, you will be prepared to understand and solve real world problems that you may come across while working on Hadoop Cluster.
How Big Data and Hadoop Integrated into BMC ControlM at CARFAXBMC Software
Learn how CARFAX utilized the power of Control-M to help drive big data processing via Cloudera. See why it was a no-brainer to choose Control-M to help manage workflows through Hadoop, some of the challenges faced, and the benefits the business received by using an existing, enterprise-wide workload management system instead of choosing “yet another tool.”
Big Data raises challenges about how to process such vast pool of raw data and how to aggregate value to our lives. For addressing these demands an ecosystem of tools named Hadoop was conceived.
This ppt is a small slideshare to describe the problem of increasing digital data and its technical solution called Hadoop.Embedded effects and motions make it exciting and more presentable
The need to process huge data is increasing day by day. Processing huge data involves compute, network and storage. In terms of Big Data, What it takes to innovate and what is innovation at the end? This talk provide high level details on the need of big data and capabilities of Mapr converged data platform.
Speaker: Vijaya Saradhi Uppaluri, Technical Director at MapR Technologies
2. Why and What Hadoop ?
A tool to process big data
3. What is BIG Data ?
Facebook, Google+ etc.,
Whatever we do getting stored in form of data or inform of logs
Machines too generate lots of data
Cameras, Mobiles, softwares like STAAD Pro, automated machines in
industries etc.,
We are having a online discussion now , certainly
your reading of this presentation is recorded in
data.
4. What is BIG Data ? ..continued
Exponential growth of data challenges to Google, Yahoo,
Microsoft, Amazon
Need to go through TBs and PBs of data ?
Which websites and books were popular ?
What kind of Ads appeal to them ?
Existing tools became inadequate to process such large
data sets.
5. Why is the data so BIG ?
Till Couple of decade back Floppy disks
From then on CD/DVD Drives
Half a decade back Hard drives (500 GB)
Now Hard Drives(I TB) are available in abundance
6. Why is the data so BIG ?
So WHAT ?
Even the technology to read has taken a leap.
7. Why is the data so BIG ?
Data
Time to
Year Device Volume Transfer
process
speed
Optical Drive
1990 1370 MB 4.4 MB/s 5 minutes
1 TB SATA
2012 1 TB 100 MB/s 2.5 Hrs
Drives
8. How to handle such BIG ?
BIG elephant
Numerous small chicken ?
9. How to handle such BIG ?
Concept of Torrents
Reduce time to read by reading it from multiple sources
simultaneously.
Imagine if we had 100 drives, each holding one hundredth of
the data. Working in parallel, we could read the data in less
than two minutes.
10. How to handle such BIG ? -- Issues
How to handle a system up and downs ?
How to combine the data from all the systems ?
11. Problem1 : System’s Ups and Downs
Commodity hard ware for data storage and analysis
Chances of failure are very high
So, have a redundant copy of the same data across some machines
In case of eventuality of one machine, you have the other
Google came up with a file system GFS (Google File System) which
implemented all these details.
12. GFS
Divides data into chunks and stores in the file System
Can store data in ranges of PBs also
13. Problem 2 : How to combine the data ?
Analyze data across different machines , But how do we merge them to
get a meaningful outcome ?
Yes, all (some) of the data has to travel across network. Then only
merging of the data can occur.
Doing this is notoriously challenging
Again Google Map—Reduce
14. Map Reduce
Provides a programming model abstracts the problem
of disk reads and writes transforming in to a computation
of keys and values.
Two phases
Map
Reduce
15. So what is Hadoop ?
An operating system ?
Provides
1. A reliable shared storage system
1. Analysis system
16. History of Hadoop
Google was the first to launch GFS and MapReduce
They published a paper in 2004 announcing the world
a brand new technology
This technology was well proven in Google by 2004
itself
MapReduce paper by Google
17. History of Hadoop
Doug Cutting saw an opportunity and led the charge
to develop an open source version of this
MapReduce system called Hadoop .
Soon after, Yahoo and others rallied around to
support this effort.
Now Hadoop is core part in :
Facebook, Yahoo, LinkedIn, Twitter …
19. HDFS -- A Brief
Design Streaming very large files on commodity cluster.
1. Very Large Files
MBs to PBs
2. Streaming
Write once read many approach
After huge data being placed We tend to use the data not modify it
Time to read the whole data is more important
3. Commodity Cluster
No High end Servers
Yes, high chance of failure (But HDFS is tolerant enoguh)
Replication is done
20. MapReduce -- A Brief
Large scale data processing in parallel.
MapReduce provides:
Automatic parallelization and distribution
Fault-tolerance
I/O scheduling
Status and monitoring
Two phases in MapReduce
Map
Reduce
21. MapReduce -- A Brief
Map phase
map (in_key, in_value) -> list(out_key, intermediate_value)
Processes input key/value pair
Produces set of intermediate pairs
Reduce Phase
reduce (out_key, list(intermediate_value)) -> list(out_value)
Combines all intermediate values for a particular key
Produces a set of merged output values (usually just one)