Hadoop and ecosystem * 本 文 中 的 言 论 仅 代 表 作 者 个 人 观 点 * 本 文 中 的 一 些 图 例 来 自 于 互 联 网. Information Management. Information Management IBM CDL Lab

Size: px
Start display at page:

Download "Hadoop and ecosystem * 本 文 中 的 言 论 仅 代 表 作 者 个 人 观 点 * 本 文 中 的 一 些 图 例 来 自 于 互 联 网. Information Management. Information Management IBM CDL Lab"

Transcription

1 IBM CDL Lab Hadoop and ecosystem * 本 文 中 的 言 论 仅 代 表 作 者 个 人 观 点 * 本 文 中 的 一 些 图 例 来 自 于 互 联 网 Information Management 2012 IBM Corporation

2 Agenda Hadoop 技 术 Hadoop 概 述 Hadoop 1.x Hadoop 2.x Hadoop 生 态 系 统 IBM Corporation 2

3 The BIG Data Challenge Extract insight from a high volume, variety and velocity of datain a timely and cost-effective manner for traditional technology is difficult. Why? Data size is too large for traditional technology to process: Too slow: 1 TB of data takes 3.4 hours for 1 disk Performance for the system decreases a lot and may crash Too expensive A large server causes lots of money (million) Unable to process semi-structured or unstructured data Current DB technology or other popular technology can only compute on structured data Unable to process flowing data Traditional technology can process data at rest only We need a new technology! IBM Corporation

4 Technology improvements through the years CPU Speeds: MIPS at 40 MHz ,561 MIPS at 1.2 GHz ,600 MIPS at 3.3 GHz RAM Memory K conventional memory (256K extended memory recommended) MB memory GB (and more) Disk Capacity MB GB TB Disk Latency (speed of reads and writes) not much improvement in last 7-10 years Access speeds haven t caught up with the incensement of the storage capacities. Disk latency is a bottleneck for data processing IBM Corporation

5 How long does it take to read 1 TB of data? 1TB (at 80Mb / sec): 1 disk hours 10 disks - 20 min 100 disks - 2 min 1000 disks - 12 sec IBM Corporation

6 Parallel Data Processing is the answer! It was with us for a while: GRID computing - spreads processing load Distributed workload - hard to manage applications, overhead on developer Parallel databases DB2 DPF, Teradata, DB2 PureScale, etc (distribute the data) IBM Corporation

7 However, it is not so easy to do Parallel Data Processing Handle partial hardware failures without going down: If machine fails, we should be switch over to stand by machine Capability: Increase capacity without restarting the whole system (PureScale) More computing power should equal to faster processing Result consistency: Answer should be consistent (independent of something failing) and returned in reasonable amount of time Is there a technology that will do all these things itself so that developer can just focus on the data business analysis? The answer is YES --hadoop is a good one to use IBM Corporation

8 What is Hadoop? Open source project Written in Java Optimized to handle Massive amounts of data through parallelism A variety of data (structured, unstructured, semi-structured) Using inexpensive commodity hardware Reliability provided through replication Inspired by Google technologies : MapReduce Google file system IBM Corporation

9 Hadoop some history Created by Doug Cutting. hadoop is the name his kid give to a stuffed yellow elephant In 2002, Doug Cutting was in a project Nutch, a currently widely used web search engine. In the Nutch project, they realized that their architecture wouldn t scale to the billions of pages on the Web. In 2003, Google published a paper about Google s distributed filesystem, called GFS. In 2004, Google published paper that introduced MapReduce to the world. The Nutch developers worked out a Nutch Distributed Filesystem and a working MapReduce implementation. In 2006, they moved out of Nutch and became a subproject of Lucene called Hadoop; in 2008, Hadoop became a top-level project of Apache IBM Corporation

10 2009: Cloudera delivered CDH 2010: v0.20.2(first version includes all features) 2010/05: IBM delivered InfoSphere BigInsights 2011/07: Yahoo! created Hortonworks 2012: v : v2.1.0-beta 2013: v : v : v2.4 Doug Cutting IBM Corporation

11 Hadoop Ecosystem Core: HDFS and Map/Reduce Other Open Sources: Hbase Pig Hive IBM Corporation

12 Hadoop Applicable Area Ad placement Applicable to Personal recommendations TB level data processing Result ranking Advertiser ROI Write once and read many times.. Massively parallel worth hundreds of CPU cores More on Not Applicable to Low latency is critical for accessing data Processing a small subset of the data within a large data set Real time processing of data that must be immediately processed IBM Corporation

13 HDFS IBM Corporation

14 HDFS Hadoop Distributed File System Characteristics : storing very large files (GBs to TBs. Modest number of large files) Designed for streaming data access patterns (write once, read many times ) running on clusters of commodity hardware but with built-in fault tolerance HDFS is not applicable for: Low-latency data access Lot s of small files Multiple writers, arbitrary file modifications IBM Corporation

15 Hadoop 1.x Framework - HDFS IBM Corporation

16 HDFS Concepts Blocks HDFS aslo has the concept of block, but it is a much larger unit - 64 MB by default. For larger files should be 128MB (recommended) NameNode The namenode manages the filesystem namespace. It maintains the filesystem tree and the metadata for all the files and directories in the tree. Secondary NameNode Periodically merges the namespace image with edit log to prevent the edit log becoming too large. The merged namespace image will also be kept on namenode. DataNode Node for storing data. Report back to the namenode periodically with lists of blocks that they are storing IBM Corporation

17 Blocks Blocks are stored on DataNodes Stored in 3 (default, configured by replica) locations one of them on separate rack. Name of file blocks and location managed by NameNode If chunk of file is smaller than HDFS block only needed space is used 128MB 128MB 128MB 66MB IBM Corporation

18 NameNode Manages the filesystem namespace; file data never goes or stored on NameNode Single NameNode per cluster Stores all metadata in memory to serve read requests File name Permissions Owner Group Location of all blocks for a file.. All write operations recorded in edit log (synced after every write); Metadata information in memory is also updated after the edit log has been written Also stores the metadata information and edit log on disk (fsimage, but location of all blocks for a file is not stored in fsimage) IBM Corporation

19 NameNode directory structure Directory structure $(dfs.name.dir)/current/version /edits /fsimage /fstime VERSION is java properties file, recording HDFS version edits is the edit log fsimage is metadata information checkpoint on disk. When recovered from failure, fsimage is loaded into memory and then edit log is replayed fstime is for the current fsimage generated time IBM Corporation

20 Secondary NameNode Responsible for check point : Periodically merges fsimage and edit log -> generate new fsimage -> send new fsimage back to namenode -> old edit log and fsimage on namenode is replaced, fstime is updated Directory is same as NameNode except it keeps previous checkpoint version in addition to current. Memory requirements are the same as NameNode (big) Typically on a separate machine in large cluster ( > 10 nodes) It can be used to restore failed NameNode (just copy current directory to new NameNode) IBM Corporation

21 DataNode Storage for file blocks Different blocks from the same file are stored on different DataNodes Replication factor is configurable Size of the blocks is configurable DataNode periodically reports to NameNode IBM Corporation

22 Read file from HDFS IBM Corporation

23 Read file from HDFS - Cont d During reading, if the DFSInputStream encounters an error while communicating with a datanode, then it will try the next closest one for that block. It will also remember datanodes that have failed so that it doesn t needlessly retry them for later blocks The DFSInputStream also verifies checksums for the data transferred to it from the datanode. If a corrupted block is found, it is reported to the namenode before the DFSInputStream attempts to read a replica of the block from another datanode IBM Corporation

24 Write file to HDFS IBM Corporation

25 How does namenode choose replica to write on? B1 B2 B3 create Block done NameNode DataNodeR1N1 DataNodeR2N1 DataNodeR3N1 DataNodeR1N2 DataNodeR2N2 DataNodeR3N2 DataNodeR1N3 DataNodeR2N3 DataNodeR3N3 DataNodeR1N4 DataNodeR2N4 DataNodeR3N4 DataNodeR1N5 DataNodeR2N5 DataNodeR3N5 DataNodeR1N6 DataNodeR2N6 DataNodeR3N6 DataNodeR1N7 DataNodeR2N7 DataNodeR3N7 DataNodeR1N8 DataNodeR2N8 DataNodeR3N IBM Corporation

26 Write file to HDFS cont d If writing to a replica fails, The failed datanode is removed from the pipeline and the remainder of the block s data is written to the two good datanodes in the pipeline. It s possible, but unlikely, that multiple datanodes fail while a block is being written. As long as dfs.replication.min replicas (default one) are written, the write will succeed, and the block will be asynchronously replicated across the cluster until its target replication factor is reached (dfs.replication, which defaults to three) IBM Corporation

27 HDFS command line Hadoop fs args IBM Corporation

28 MapReduce IBM Corporation

29 MapReduce framework A distributed data processing model and execution environment that runs on large clusters of commodity machines MapReduce works by breaking the processing into two phases: the map phase and the reduce phase. Each phase has key-value pairs as input and output. The programmer usually need to specify: the map function and the reduce function. Also needs to specify configuration information to run the map and reduce IBM Corporation

30 JobTracker and TaskTrackers Two types of daemons that control job execution: Job Tracker (master node) Task Trackers (slave nodes) Job sent to JobTracker JobTracker communicates with NameNode and assigns parts of job to TaskTrackers (TaskTracker is run on each DataNode) Task is a single MAP or REDUCE operation over piece of data Hadoop divides the input to MAP / REDUCE job into equal splits The JobTracker knows (from NameNode) which node contains the data, and which other machines are nearby. Task processes send heartbeats to JobTracker IBM Corporation

31 Hadoop 1.x Framework - MapReduce IBM Corporation

32 An example of MapReduce We have a weather data set (lots of files), with each line in the file representing a record for that year. Now need to get the highest temperature for each year Input for Map: (0, ) (33, ) (66, ) (99, ) (132, ) (165, ) (198, ) (231, ) (264, ) (297, ) Shuffle Output for Map: (1950, 0) (1950, 22) (1950, -11) (1949, 111) (1949, 78) (1937, 1) (1937, -2) (1945, 1) (1945, 2) (1945, 78) Input for Reduce: (1950, [0, 22, 11]) (1949, [111, 78]) (1937, [1, -2]) (1945, [1, 2, 78]) Output for Reduce: (1950, 22) (1949, 111) (1937, 1) (1945, 78) IBM Corporation

33 Map code public class MaxTemperatureMapper extends Mapper<LongWritable, Text, Text, IntWritable> { private static final int MISSING = public void map(longwritable key, Text value, Context context) throws IOException, InterruptedException { String line = value.tostring(); String year = line.substring(15, 19); int airtemperature; if (line.charat(87) == '+') { // parseint doesn't like leading plus signs airtemperature = Integer.parseInt(line.substring(88, 92)); } else { airtemperature = Integer.parseInt(line.substring(87, 92)); } String quality = line.substring(92, 93); if (airtemperature!= MISSING && quality.matches("[01459]")) { context.write(new Text(year), new IntWritable(airTemperature)); } } } IBM Corporation

34 Reduce code public class MaxTemperatureReducer extends Reducer<Text, IntWritable, Text, IntWritable> public void reduce(text key, Iterable<IntWritable> values, Context context) throws IOException, InterruptedException { int maxvalue = Integer.MIN_VALUE; for (IntWritable value : values) { maxvalue = Math.max(maxValue, value.get()); } context.write(key, new IntWritable(maxValue)); } } IBM Corporation

35 Code to run the job public class MaxTemperature { public static void main(string[] args) throws Exception { if (args.length!= 2) { System.err.println("Usage: MaxTemperature <input path> <output path>"); System.exit(-1); } Job job = new Job(); job.setjarbyclass(maxtemperature.class); job.setjobname("max temperature"); FileInputFormat.addInputPath(job, new Path(args[0])); FileOutputFormat.setOutputPath(job, new Path(args[1])); job.setmapperclass(maxtemperaturemapper.class); job.setreducerclass(maxtemperaturereducer.class); job.setoutputkeyclass(text.class); job.setoutputvalueclass(intwritable.class); System.exit(job.waitForCompletion(true)? 0 : 1); } } IBM Corporation

36 MapReduce Processing User runs a program on client computer Program submits a job to HDFS. Job contains: Input data Map / Reduce program Configuration information Hadoop runs the job by dividing it into tasks: map tasks and reduce tasks Hadoop divides the input sent to the job into fixed-size splits (block-size). Create 1 map for each split Hadoop does its best to run the map task on a node where the input data resides in HDFS. This is called the data locality optimization IBM Corporation

37 public static class TokenizerMapper public static class TokenizerMapper extends Mapper<Object,Text,Text,IntWritable> { extends Mapper<Object,Text,Text,IntWritable> { private final static IntWritable private final static IntWritable one = new IntWritable(1); one = new IntWritable(1); private Text word = new Text(); private Text word = new Text(); public void map(object key, Text val, Context public void map(object key, Text val, Context StringTokenizer itr = StringTokenizer itr = new StringTokenizer(val.toString()); new StringTokenizer(val.toString()); while (itr.hasmoretokens()) { while (itr.hasmoretokens()) { word.set(itr.nexttoken()); word.set(itr.nexttoken()); context.write(word, one); context.write(word, one); } } } } } } public static class IntSumReducer public static class IntSumReducer extends Reducer<Text,IntWritable,Text,IntWrita extends Reducer<Text,IntWritable,Text,IntWrita private IntWritable result = new IntWritable(); private IntWritable result = new IntWritable(); public void reduce(text key, public void reduce(text key, Iterable<IntWritable> val, Context context){ Iterable<IntWritable> val, Context context){ int sum = 0; int sum = 0; for (IntWritable v : val) { for (IntWritable v : val) { sum += v.get(); sum += v.get(); Distribute map tasks to cluster Hadoop Data Nodes 1. Map Phase (break job into small parts) 2. Shuffle (transfer interim output for final processing) MapReduce Application Shuffle 3. Reduce Phase (boil all output down to a single result set) Result Set Return a single result set Copyright IBM Corporation IBM Corporation

38 RDMS and Hadoop complementary, not competing Structured data with known schemas Records, long fields, objects, XML Updates allowed SQL & XQuery Quick response, random access Data loss is not acceptable Security and auditing Encryption Sophisticated data compression Enterprise hardware 40+ years of innovation Random access (indexing) Unstructured and structured Files Only inserts and deletes Hive, Pig, Jaql Batch processing Data loss can happen sometimes Not yet Not yet Simple file compression Commodity hardware 10+ years old technology Access files only (streaming) Large DBA and Application development community, widely used Small number of companies using it in production, many startups IBM Corporation

39 Hadoop 1.x limitations HDFS Single point of failure Namenode heavy workload MapReduce: Scalability (maximum 4000 nodes) Availability (Jobtracker heavy workload and single point of failure) Inefficient resource management (resource divided into map task slot and reduce task slot) Processing frameworks work separately. Unable to share data/resource IBM Corporation

40 Hadoop 2.x Framework HDFS HA IBM Corporation

41 Hadoop 2.x Framework HDFS Federation IBM Corporation

42 Hadoop 2.x Framework HDFS Federation - Two Layers - Client Side Mount Table IBM Corporation

43 HA & Federation IBM Corporation

44 Hadoop 1.x limitations HDFS Single point of failure Namenode heavy workload MapReduce: Scalability (maximum 4000 nodes) Availability (Jobtracker heavy workload and single point of failure) Inefficient resource management (resource divided into map task slot and reduce task slot) Processing frameworks work separately. Unable to share data/resource IBM Corporation

45 Hadoop 2.x Framework - YARN (Yet Another Resource Negotiator) IBM Corporation

46 Hadoop 2.x Framework - YARN IBM Corporation

47 Hadoop 2.x Framework - YARN IBM Corporation

48 Job Runs On Yarn IBM Corporation

49 Advantages Advantages of YARN: - Good scalability - Supports multiple processing framework - Efficient cluster usage IBM Corporation

50 HBase on Yarn Hoya HBase v IBM Corporation

51 HBase on Yarn - Hoya IBM Corporation

52 Hadoop Ecosystem IBM Corporation

53 Questions? IBM Corporation

Working With Hadoop. Important Terminology. Important Terminology. Anatomy of MapReduce Job Run. Important Terminology

Working With Hadoop. Important Terminology. Important Terminology. Anatomy of MapReduce Job Run. Important Terminology Working With Hadoop Now that we covered the basics of MapReduce, let s look at some Hadoop specifics. Mostly based on Tom White s book Hadoop: The Definitive Guide, 3 rd edition Note: We will use the new

More information

Processing of massive data: MapReduce. 2. Hadoop. New Trends In Distributed Systems MSc Software and Systems

Processing of massive data: MapReduce. 2. Hadoop. New Trends In Distributed Systems MSc Software and Systems Processing of massive data: MapReduce 2. Hadoop 1 MapReduce Implementations Google were the first that applied MapReduce for big data analysis Their idea was introduced in their seminal paper MapReduce:

More information

Hadoop Architecture. Part 1

Hadoop Architecture. Part 1 Hadoop Architecture Part 1 Node, Rack and Cluster: A node is simply a computer, typically non-enterprise, commodity hardware for nodes that contain data. Consider we have Node 1.Then we can add more nodes,

More information

Prepared By : Manoj Kumar Joshi & Vikas Sawhney

Prepared By : Manoj Kumar Joshi & Vikas Sawhney Prepared By : Manoj Kumar Joshi & Vikas Sawhney General Agenda Introduction to Hadoop Architecture Acknowledgement Thanks to all the authors who left their selfexplanatory images on the internet. Thanks

More information

Getting to know Apache Hadoop

Getting to know Apache Hadoop Getting to know Apache Hadoop Oana Denisa Balalau Télécom ParisTech October 13, 2015 1 / 32 Table of Contents 1 Apache Hadoop 2 The Hadoop Distributed File System(HDFS) 3 Application management in the

More information

Welcome to the unit of Hadoop Fundamentals on Hadoop architecture. I will begin with a terminology review and then cover the major components

Welcome to the unit of Hadoop Fundamentals on Hadoop architecture. I will begin with a terminology review and then cover the major components Welcome to the unit of Hadoop Fundamentals on Hadoop architecture. I will begin with a terminology review and then cover the major components of Hadoop. We will see what types of nodes can exist in a Hadoop

More information

and HDFS for Big Data Applications Serge Blazhievsky Nice Systems

and HDFS for Big Data Applications Serge Blazhievsky Nice Systems Introduction PRESENTATION to Hadoop, TITLE GOES MapReduce HERE and HDFS for Big Data Applications Serge Blazhievsky Nice Systems SNIA Legal Notice The material contained in this tutorial is copyrighted

More information

Open source software framework designed for storage and processing of large scale data on clusters of commodity hardware

Open source software framework designed for storage and processing of large scale data on clusters of commodity hardware Open source software framework designed for storage and processing of large scale data on clusters of commodity hardware Created by Doug Cutting and Mike Carafella in 2005. Cutting named the program after

More information

CS2510 Computer Operating Systems

CS2510 Computer Operating Systems CS2510 Computer Operating Systems HADOOP Distributed File System Dr. Taieb Znati Computer Science Department University of Pittsburgh Outline HDF Design Issues HDFS Application Profile Block Abstraction

More information

CS2510 Computer Operating Systems

CS2510 Computer Operating Systems CS2510 Computer Operating Systems HADOOP Distributed File System Dr. Taieb Znati Computer Science Department University of Pittsburgh Outline HDF Design Issues HDFS Application Profile Block Abstraction

More information

Hadoop Configuration and First Examples

Hadoop Configuration and First Examples Hadoop Configuration and First Examples Big Data 2015 Hadoop Configuration In the bash_profile export all needed environment variables Hadoop Configuration Allow remote login Hadoop Configuration Download

More information

Big Data With Hadoop

Big Data With Hadoop With Saurabh Singh singh.903@osu.edu The Ohio State University February 11, 2016 Overview 1 2 3 Requirements Ecosystem Resilient Distributed Datasets (RDDs) Example Code vs Mapreduce 4 5 Source: [Tutorials

More information

Lecture 5: GFS & HDFS! Claudia Hauff (Web Information Systems)! ti2736b-ewi@tudelft.nl

Lecture 5: GFS & HDFS! Claudia Hauff (Web Information Systems)! ti2736b-ewi@tudelft.nl Big Data Processing, 2014/15 Lecture 5: GFS & HDFS!! Claudia Hauff (Web Information Systems)! ti2736b-ewi@tudelft.nl 1 Course content Introduction Data streams 1 & 2 The MapReduce paradigm Looking behind

More information

Introduc)on to Map- Reduce. Vincent Leroy

Introduc)on to Map- Reduce. Vincent Leroy Introduc)on to Map- Reduce Vincent Leroy Sources Apache Hadoop Yahoo! Developer Network Hortonworks Cloudera Prac)cal Problem Solving with Hadoop and Pig Slides will be available at hgp://lig- membres.imag.fr/leroyv/

More information

Hadoop at Yahoo! Owen O Malley Yahoo!, Grid Team owen@yahoo-inc.com

Hadoop at Yahoo! Owen O Malley Yahoo!, Grid Team owen@yahoo-inc.com Hadoop at Yahoo! Owen O Malley Yahoo!, Grid Team owen@yahoo-inc.com Who Am I? Yahoo! Architect on Hadoop Map/Reduce Design, review, and implement features in Hadoop Working on Hadoop full time since Feb

More information

BIG DATA APPLICATIONS

BIG DATA APPLICATIONS BIG DATA ANALYTICS USING HADOOP AND SPARK ON HATHI Boyu Zhang Research Computing ITaP BIG DATA APPLICATIONS Big data has become one of the most important aspects in scientific computing and business analytics

More information

Hadoop implementation of MapReduce computational model. Ján Vaňo

Hadoop implementation of MapReduce computational model. Ján Vaňo Hadoop implementation of MapReduce computational model Ján Vaňo What is MapReduce? A computational model published in a paper by Google in 2004 Based on distributed computation Complements Google s distributed

More information

Overview. Big Data in Apache Hadoop. - HDFS - MapReduce in Hadoop - YARN. https://hadoop.apache.org. Big Data Management and Analytics

Overview. Big Data in Apache Hadoop. - HDFS - MapReduce in Hadoop - YARN. https://hadoop.apache.org. Big Data Management and Analytics Overview Big Data in Apache Hadoop - HDFS - MapReduce in Hadoop - YARN https://hadoop.apache.org 138 Apache Hadoop - Historical Background - 2003: Google publishes its cluster architecture & DFS (GFS)

More information

Hadoop Distributed File System. Dhruba Borthakur Apache Hadoop Project Management Committee dhruba@apache.org dhruba@facebook.com

Hadoop Distributed File System. Dhruba Borthakur Apache Hadoop Project Management Committee dhruba@apache.org dhruba@facebook.com Hadoop Distributed File System Dhruba Borthakur Apache Hadoop Project Management Committee dhruba@apache.org dhruba@facebook.com Hadoop, Why? Need to process huge datasets on large clusters of computers

More information

Internals of Hadoop Application Framework and Distributed File System

Internals of Hadoop Application Framework and Distributed File System International Journal of Scientific and Research Publications, Volume 5, Issue 7, July 2015 1 Internals of Hadoop Application Framework and Distributed File System Saminath.V, Sangeetha.M.S Abstract- Hadoop

More information

Introduction to Hadoop. New York Oracle User Group Vikas Sawhney

Introduction to Hadoop. New York Oracle User Group Vikas Sawhney Introduction to Hadoop New York Oracle User Group Vikas Sawhney GENERAL AGENDA Driving Factors behind BIG-DATA NOSQL Database 2014 Database Landscape Hadoop Architecture Map/Reduce Hadoop Eco-system Hadoop

More information

Hadoop/MapReduce. Object-oriented framework presentation CSCI 5448 Casey McTaggart

Hadoop/MapReduce. Object-oriented framework presentation CSCI 5448 Casey McTaggart Hadoop/MapReduce Object-oriented framework presentation CSCI 5448 Casey McTaggart What is Apache Hadoop? Large scale, open source software framework Yahoo! has been the largest contributor to date Dedicated

More information

Hadoop Distributed File System. Dhruba Borthakur Apache Hadoop Project Management Committee dhruba@apache.org June 3 rd, 2008

Hadoop Distributed File System. Dhruba Borthakur Apache Hadoop Project Management Committee dhruba@apache.org June 3 rd, 2008 Hadoop Distributed File System Dhruba Borthakur Apache Hadoop Project Management Committee dhruba@apache.org June 3 rd, 2008 Who Am I? Hadoop Developer Core contributor since Hadoop s infancy Focussed

More information

Hadoop: A Framework for Data- Intensive Distributed Computing. CS561-Spring 2012 WPI, Mohamed Y. Eltabakh

Hadoop: A Framework for Data- Intensive Distributed Computing. CS561-Spring 2012 WPI, Mohamed Y. Eltabakh 1 Hadoop: A Framework for Data- Intensive Distributed Computing CS561-Spring 2012 WPI, Mohamed Y. Eltabakh 2 What is Hadoop? Hadoop is a software framework for distributed processing of large datasets

More information

Introduction to Hadoop HDFS and Ecosystems. Slides credits: Cloudera Academic Partners Program & Prof. De Liu, MSBA 6330 Harvesting Big Data

Introduction to Hadoop HDFS and Ecosystems. Slides credits: Cloudera Academic Partners Program & Prof. De Liu, MSBA 6330 Harvesting Big Data Introduction to Hadoop HDFS and Ecosystems ANSHUL MITTAL Slides credits: Cloudera Academic Partners Program & Prof. De Liu, MSBA 6330 Harvesting Big Data Topics The goal of this presentation is to give

More information

Hadoop IST 734 SS CHUNG

Hadoop IST 734 SS CHUNG Hadoop IST 734 SS CHUNG Introduction What is Big Data?? Bulk Amount Unstructured Lots of Applications which need to handle huge amount of data (in terms of 500+ TB per day) If a regular machine need to

More information

Distributed File System. MCSN N. Tonellotto Complements of Distributed Enabling Platforms

Distributed File System. MCSN N. Tonellotto Complements of Distributed Enabling Platforms Distributed File System 1 How do we get data to the workers? NAS Compute Nodes SAN 2 Distributed File System Don t move data to workers move workers to the data! Store data on the local disks of nodes

More information

CSE-E5430 Scalable Cloud Computing Lecture 2

CSE-E5430 Scalable Cloud Computing Lecture 2 CSE-E5430 Scalable Cloud Computing Lecture 2 Keijo Heljanko Department of Computer Science School of Science Aalto University keijo.heljanko@aalto.fi 14.9-2015 1/36 Google MapReduce A scalable batch processing

More information

Large scale processing using Hadoop. Ján Vaňo

Large scale processing using Hadoop. Ján Vaňo Large scale processing using Hadoop Ján Vaňo What is Hadoop? Software platform that lets one easily write and run applications that process vast amounts of data Includes: MapReduce offline computing engine

More information

IBM Big Data Platform

IBM Big Data Platform Mike Winer IBM Information Management IBM Big Data Platform The big data opportunity Extracting insight from an immense volume, variety and velocity of data, in a timely and cost-effective manner. Variety:

More information

DATA MINING WITH HADOOP AND HIVE Introduction to Architecture

DATA MINING WITH HADOOP AND HIVE Introduction to Architecture DATA MINING WITH HADOOP AND HIVE Introduction to Architecture Dr. Wlodek Zadrozny (Most slides come from Prof. Akella s class in 2014) 2015-2025. Reproduction or usage prohibited without permission of

More information

Mrs: MapReduce for Scientific Computing in Python

Mrs: MapReduce for Scientific Computing in Python Mrs: for Scientific Computing in Python Andrew McNabb, Jeff Lund, and Kevin Seppi Brigham Young University November 16, 2012 Large scale problems require parallel processing Communication in parallel processing

More information

CS54100: Database Systems

CS54100: Database Systems CS54100: Database Systems Cloud Databases: The Next Post- Relational World 18 April 2012 Prof. Chris Clifton Beyond RDBMS The Relational Model is too limiting! Simple data model doesn t capture semantics

More information

Hadoop. Scalable Distributed Computing. Claire Jaja, Julian Chan October 8, 2013

Hadoop. Scalable Distributed Computing. Claire Jaja, Julian Chan October 8, 2013 Hadoop Scalable Distributed Computing Claire Jaja, Julian Chan October 8, 2013 What is Hadoop? A general-purpose storage and data-analysis platform Open source Apache software, implemented in Java Enables

More information

Hadoop Distributed File System. Jordan Prosch, Matt Kipps

Hadoop Distributed File System. Jordan Prosch, Matt Kipps Hadoop Distributed File System Jordan Prosch, Matt Kipps Outline - Background - Architecture - Comments & Suggestions Background What is HDFS? Part of Apache Hadoop - distributed storage What is Hadoop?

More information

CSE 590: Special Topics Course ( Supercomputing ) Lecture 10 ( MapReduce& Hadoop)

CSE 590: Special Topics Course ( Supercomputing ) Lecture 10 ( MapReduce& Hadoop) CSE 590: Special Topics Course ( Supercomputing ) Lecture 10 ( MapReduce& Hadoop) Rezaul A. Chowdhury Department of Computer Science SUNY Stony Brook Spring 2016 MapReduce MapReduce is a programming model

More information

Extreme Computing. Hadoop MapReduce in more detail. www.inf.ed.ac.uk

Extreme Computing. Hadoop MapReduce in more detail. www.inf.ed.ac.uk Extreme Computing Hadoop MapReduce in more detail How will I actually learn Hadoop? This class session Hadoop: The Definitive Guide RTFM There is a lot of material out there There is also a lot of useless

More information

THE HADOOP DISTRIBUTED FILE SYSTEM

THE HADOOP DISTRIBUTED FILE SYSTEM THE HADOOP DISTRIBUTED FILE SYSTEM Konstantin Shvachko, Hairong Kuang, Sanjay Radia, Robert Chansler Presented by Alexander Pokluda October 7, 2013 Outline Motivation and Overview of Hadoop Architecture,

More information

hadoop Running hadoop on Grid'5000 Vinicius Cogo vielmo@lasige.di.fc.ul.pt Marcelo Pasin pasin@di.fc.ul.pt Andrea Charão andrea@inf.ufsm.

hadoop Running hadoop on Grid'5000 Vinicius Cogo vielmo@lasige.di.fc.ul.pt Marcelo Pasin pasin@di.fc.ul.pt Andrea Charão andrea@inf.ufsm. hadoop Running hadoop on Grid'5000 Vinicius Cogo vielmo@lasige.di.fc.ul.pt Marcelo Pasin pasin@di.fc.ul.pt Andrea Charão andrea@inf.ufsm.br Outline 1 Introduction 2 MapReduce 3 Hadoop 4 How to Install

More information

INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY

INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY A PATH FOR HORIZING YOUR INNOVATIVE WORK A COMPREHENSIVE VIEW OF HADOOP ER. AMRINDER KAUR Assistant Professor, Department

More information

International Journal of Advancements in Research & Technology, Volume 3, Issue 2, February-2014 10 ISSN 2278-7763

International Journal of Advancements in Research & Technology, Volume 3, Issue 2, February-2014 10 ISSN 2278-7763 International Journal of Advancements in Research & Technology, Volume 3, Issue 2, February-2014 10 A Discussion on Testing Hadoop Applications Sevuga Perumal Chidambaram ABSTRACT The purpose of analysing

More information

Introduction to MapReduce and Hadoop

Introduction to MapReduce and Hadoop Introduction to MapReduce and Hadoop Jie Tao Karlsruhe Institute of Technology jie.tao@kit.edu Die Kooperation von Why Map/Reduce? Massive data Can not be stored on a single machine Takes too long to process

More information

Tutorial- Counting Words in File(s) using MapReduce

Tutorial- Counting Words in File(s) using MapReduce Tutorial- Counting Words in File(s) using MapReduce 1 Overview This document serves as a tutorial to setup and run a simple application in Hadoop MapReduce framework. A job in Hadoop MapReduce usually

More information

Journal of science STUDY ON REPLICA MANAGEMENT AND HIGH AVAILABILITY IN HADOOP DISTRIBUTED FILE SYSTEM (HDFS)

Journal of science STUDY ON REPLICA MANAGEMENT AND HIGH AVAILABILITY IN HADOOP DISTRIBUTED FILE SYSTEM (HDFS) Journal of science e ISSN 2277-3290 Print ISSN 2277-3282 Information Technology www.journalofscience.net STUDY ON REPLICA MANAGEMENT AND HIGH AVAILABILITY IN HADOOP DISTRIBUTED FILE SYSTEM (HDFS) S. Chandra

More information

Big Data Analytics with MapReduce VL Implementierung von Datenbanksystemen 05-Feb-13

Big Data Analytics with MapReduce VL Implementierung von Datenbanksystemen 05-Feb-13 Big Data Analytics with MapReduce VL Implementierung von Datenbanksystemen 05-Feb-13 Astrid Rheinländer Wissensmanagement in der Bioinformatik What is Big Data? collection of data sets so large and complex

More information

Data-Intensive Programming. Timo Aaltonen Department of Pervasive Computing

Data-Intensive Programming. Timo Aaltonen Department of Pervasive Computing Data-Intensive Programming Timo Aaltonen Department of Pervasive Computing Data-Intensive Programming Lecturer: Timo Aaltonen University Lecturer timo.aaltonen@tut.fi Assistants: Henri Terho and Antti

More information

Big Data

<Insert Picture Here> Big Data Big Data Kevin Kalmbach Principal Sales Consultant, Public Sector Engineered Systems Program Agenda What is Big Data and why it is important? What is your Big

More information

Hadoop Distributed Filesystem. Spring 2015, X. Zhang Fordham Univ.

Hadoop Distributed Filesystem. Spring 2015, X. Zhang Fordham Univ. Hadoop Distributed Filesystem Spring 2015, X. Zhang Fordham Univ. MapReduce Programming Model Split Shuffle Input: a set of [key,value] pairs intermediate [key,value] pairs [k1,v11,v12, ] [k2,v21,v22,

More information

Distributed File Systems

Distributed File Systems Distributed File Systems Mauro Fruet University of Trento - Italy 2011/12/19 Mauro Fruet (UniTN) Distributed File Systems 2011/12/19 1 / 39 Outline 1 Distributed File Systems 2 The Google File System (GFS)

More information

Introduction to Hadoop. Owen O Malley Yahoo Inc!

Introduction to Hadoop. Owen O Malley Yahoo Inc! Introduction to Hadoop Owen O Malley Yahoo Inc! omalley@apache.org Hadoop: Why? Need to process 100TB datasets with multiday jobs On 1 node: scanning @ 50MB/s = 23 days MTBF = 3 years On 1000 node cluster:

More information

Session: Big Data get familiar with Hadoop to use your unstructured data Udo Brede Dell Software. 22 nd October 2013 10:00 Sesión B - DB2 LUW

Session: Big Data get familiar with Hadoop to use your unstructured data Udo Brede Dell Software. 22 nd October 2013 10:00 Sesión B - DB2 LUW Session: Big Data get familiar with Hadoop to use your unstructured data Udo Brede Dell Software 22 nd October 2013 10:00 Sesión B - DB2 LUW 1 Agenda Big Data The Technical Challenges Architecture of Hadoop

More information

MapReduce with Apache Hadoop Analysing Big Data

MapReduce with Apache Hadoop Analysing Big Data MapReduce with Apache Hadoop Analysing Big Data April 2010 Gavin Heavyside gavin.heavyside@journeydynamics.com About Journey Dynamics Founded in 2006 to develop software technology to address the issues

More information

Xiaoming Gao Hui Li Thilina Gunarathne

Xiaoming Gao Hui Li Thilina Gunarathne Xiaoming Gao Hui Li Thilina Gunarathne Outline HBase and Bigtable Storage HBase Use Cases HBase vs RDBMS Hands-on: Load CSV file to Hbase table with MapReduce Motivation Lots of Semi structured data Horizontal

More information

A very short Intro to Hadoop

A very short Intro to Hadoop 4 Overview A very short Intro to Hadoop photo by: exfordy, flickr 5 How to Crunch a Petabyte? Lots of disks, spinning all the time Redundancy, since disks die Lots of CPU cores, working all the time Retry,

More information

Take An Internal Look at Hadoop. Hairong Kuang Grid Team, Yahoo! Inc hairong@yahoo-inc.com

Take An Internal Look at Hadoop. Hairong Kuang Grid Team, Yahoo! Inc hairong@yahoo-inc.com Take An Internal Look at Hadoop Hairong Kuang Grid Team, Yahoo! Inc hairong@yahoo-inc.com What s Hadoop Framework for running applications on large clusters of commodity hardware Scale: petabytes of data

More information

Distributed Filesystems

Distributed Filesystems Distributed Filesystems Amir H. Payberah Swedish Institute of Computer Science amir@sics.se April 8, 2014 Amir H. Payberah (SICS) Distributed Filesystems April 8, 2014 1 / 32 What is Filesystem? Controls

More information

Apache Hadoop FileSystem and its Usage in Facebook

Apache Hadoop FileSystem and its Usage in Facebook Apache Hadoop FileSystem and its Usage in Facebook Dhruba Borthakur Project Lead, Apache Hadoop Distributed File System dhruba@apache.org Presented at Indian Institute of Technology November, 2010 http://www.facebook.com/hadoopfs

More information

Hadoop and Map-Reduce. Swati Gore

Hadoop and Map-Reduce. Swati Gore Hadoop and Map-Reduce Swati Gore Contents Why Hadoop? Hadoop Overview Hadoop Architecture Working Description Fault Tolerance Limitations Why Map-Reduce not MPI Distributed sort Why Hadoop? Existing Data

More information

Hadoop & its Usage at Facebook

Hadoop & its Usage at Facebook Hadoop & its Usage at Facebook Dhruba Borthakur Project Lead, Hadoop Distributed File System dhruba@apache.org Presented at the Storage Developer Conference, Santa Clara September 15, 2009 Outline Introduction

More information

Hadoop & its Usage at Facebook

Hadoop & its Usage at Facebook Hadoop & its Usage at Facebook Dhruba Borthakur Project Lead, Hadoop Distributed File System dhruba@apache.org Presented at the The Israeli Association of Grid Technologies July 15, 2009 Outline Architecture

More information

GraySort and MinuteSort at Yahoo on Hadoop 0.23

GraySort and MinuteSort at Yahoo on Hadoop 0.23 GraySort and at Yahoo on Hadoop.23 Thomas Graves Yahoo! May, 213 The Apache Hadoop[1] software library is an open source framework that allows for the distributed processing of large data sets across clusters

More information

HADOOP MOCK TEST HADOOP MOCK TEST I

HADOOP MOCK TEST HADOOP MOCK TEST I http://www.tutorialspoint.com HADOOP MOCK TEST Copyright tutorialspoint.com This section presents you various set of Mock Tests related to Hadoop Framework. You can download these sample mock tests at

More information

Introduction to Hadoop. Owen O Malley Yahoo Inc!

Introduction to Hadoop. Owen O Malley Yahoo Inc! Introduction to Hadoop Owen O Malley Yahoo Inc! omalley@apache.org Hadoop: Why? Need to process 100TB datasets with multiday jobs On 1 node: scanning @ 50MB/s = 23 days MTBF = 3 years On 1000 node cluster:

More information

Chapter 7. Using Hadoop Cluster and MapReduce

Chapter 7. Using Hadoop Cluster and MapReduce Chapter 7 Using Hadoop Cluster and MapReduce Modeling and Prototyping of RMS for QoS Oriented Grid Page 152 7. Using Hadoop Cluster and MapReduce for Big Data Problems The size of the databases used in

More information

BIG DATA, MAPREDUCE & HADOOP

BIG DATA, MAPREDUCE & HADOOP BIG, MAPREDUCE & HADOOP LARGE SCALE DISTRIBUTED SYSTEMS By Jean-Pierre Lozi A tutorial for the LSDS class LARGE SCALE DISTRIBUTED SYSTEMS BIG, MAPREDUCE & HADOOP 1 OBJECTIVES OF THIS LAB SESSION The LSDS

More information

Hadoop Distributed File System. T-111.5550 Seminar On Multimedia 2009-11-11 Eero Kurkela

Hadoop Distributed File System. T-111.5550 Seminar On Multimedia 2009-11-11 Eero Kurkela Hadoop Distributed File System T-111.5550 Seminar On Multimedia 2009-11-11 Eero Kurkela Agenda Introduction Flesh and bones of HDFS Architecture Accessing data Data replication strategy Fault tolerance

More information

The Hadoop Distributed File System

The Hadoop Distributed File System The Hadoop Distributed File System The Hadoop Distributed File System, Konstantin Shvachko, Hairong Kuang, Sanjay Radia, Robert Chansler, Yahoo, 2010 Agenda Topic 1: Introduction Topic 2: Architecture

More information

Distributed Recommenders. Fall 2010

Distributed Recommenders. Fall 2010 Distributed Recommenders Fall 2010 Distributed Recommenders Distributed Approaches are needed when: Dataset does not fit into memory Need for processing exceeds what can be provided with a sequential algorithm

More information

Big Data 2012 Hadoop Tutorial

Big Data 2012 Hadoop Tutorial Big Data 2012 Hadoop Tutorial Oct 19th, 2012 Martin Kaufmann Systems Group, ETH Zürich 1 Contact Exercise Session Friday 14.15 to 15.00 CHN D 46 Your Assistant Martin Kaufmann Office: CAB E 77.2 E-Mail:

More information

Hadoop Lab Notes. Nicola Tonellotto November 15, 2010

Hadoop Lab Notes. Nicola Tonellotto November 15, 2010 Hadoop Lab Notes Nicola Tonellotto November 15, 2010 2 Contents 1 Hadoop Setup 4 1.1 Prerequisites........................................... 4 1.2 Installation............................................

More information

MASSIVE DATA PROCESSING (THE GOOGLE WAY ) 27/04/2015. Fundamentals of Distributed Systems. Inside Google circa 2015

MASSIVE DATA PROCESSING (THE GOOGLE WAY ) 27/04/2015. Fundamentals of Distributed Systems. Inside Google circa 2015 7/04/05 Fundamentals of Distributed Systems CC5- PROCESAMIENTO MASIVO DE DATOS OTOÑO 05 Lecture 4: DFS & MapReduce I Aidan Hogan aidhog@gmail.com Inside Google circa 997/98 MASSIVE DATA PROCESSING (THE

More information

Using Hadoop for Webscale Computing. Ajay Anand Yahoo! aanand@yahoo-inc.com Usenix 2008

Using Hadoop for Webscale Computing. Ajay Anand Yahoo! aanand@yahoo-inc.com Usenix 2008 Using Hadoop for Webscale Computing Ajay Anand Yahoo! aanand@yahoo-inc.com Agenda The Problem Solution Approach / Introduction to Hadoop HDFS File System Map Reduce Programming Pig Hadoop implementation

More information

Parallel Programming Map-Reduce. Needless to Say, We Need Machine Learning for Big Data

Parallel Programming Map-Reduce. Needless to Say, We Need Machine Learning for Big Data Case Study 2: Document Retrieval Parallel Programming Map-Reduce Machine Learning/Statistics for Big Data CSE599C1/STAT592, University of Washington Carlos Guestrin January 31 st, 2013 Carlos Guestrin

More information

HDFS: Hadoop Distributed File System

HDFS: Hadoop Distributed File System Istanbul Şehir University Big Data Camp 14 HDFS: Hadoop Distributed File System Aslan Bakirov Kevser Nur Çoğalmış Agenda Distributed File System HDFS Concepts HDFS Interfaces HDFS Full Picture Read Operation

More information

Intro to Map/Reduce a.k.a. Hadoop

Intro to Map/Reduce a.k.a. Hadoop Intro to Map/Reduce a.k.a. Hadoop Based on: Mining of Massive Datasets by Ra jaraman and Ullman, Cambridge University Press, 2011 Data Mining for the masses by North, Global Text Project, 2012 Slides by

More information

Hadoop Ecosystem B Y R A H I M A.

Hadoop Ecosystem B Y R A H I M A. Hadoop Ecosystem B Y R A H I M A. History of Hadoop Hadoop was created by Doug Cutting, the creator of Apache Lucene, the widely used text search library. Hadoop has its origins in Apache Nutch, an open

More information

Big Data Management and NoSQL Databases

Big Data Management and NoSQL Databases NDBI040 Big Data Management and NoSQL Databases Lecture 3. Apache Hadoop Doc. RNDr. Irena Holubova, Ph.D. holubova@ksi.mff.cuni.cz http://www.ksi.mff.cuni.cz/~holubova/ndbi040/ Apache Hadoop Open-source

More information

Hadoop Big Data for Processing Data and Performing Workload

Hadoop Big Data for Processing Data and Performing Workload Hadoop Big Data for Processing Data and Performing Workload Girish T B 1, Shadik Mohammed Ghouse 2, Dr. B. R. Prasad Babu 3 1 M Tech Student, 2 Assosiate professor, 3 Professor & Head (PG), of Computer

More information

Hadoop Distributed File System. Dhruba Borthakur June, 2007

Hadoop Distributed File System. Dhruba Borthakur June, 2007 Hadoop Distributed File System Dhruba Borthakur June, 2007 Goals of HDFS Very Large Distributed File System 10K nodes, 100 million files, 10 PB Assumes Commodity Hardware Files are replicated to handle

More information

The Hadoop Eco System Shanghai Data Science Meetup

The Hadoop Eco System Shanghai Data Science Meetup The Hadoop Eco System Shanghai Data Science Meetup Karthik Rajasethupathy, Christian Kuka 03.11.2015 @Agora Space Overview What is this talk about? Giving an overview of the Hadoop Ecosystem and related

More information

Map Reduce & Hadoop Recommended Text:

Map Reduce & Hadoop Recommended Text: Big Data Map Reduce & Hadoop Recommended Text:! Large datasets are becoming more common The New York Stock Exchange generates about one terabyte of new trade data per day. Facebook hosts approximately

More information

HADOOP MOCK TEST HADOOP MOCK TEST

HADOOP MOCK TEST HADOOP MOCK TEST http://www.tutorialspoint.com HADOOP MOCK TEST Copyright tutorialspoint.com This section presents you various set of Mock Tests related to Hadoop Framework. You can download these sample mock tests at

More information

Hadoop Distributed File System (HDFS) Overview

Hadoop Distributed File System (HDFS) Overview 2012 coreservlets.com and Dima May Hadoop Distributed File System (HDFS) Overview Originals of slides and source code for examples: http://www.coreservlets.com/hadoop-tutorial/ Also see the customized

More information

Apache Hadoop. Alexandru Costan

Apache Hadoop. Alexandru Costan 1 Apache Hadoop Alexandru Costan Big Data Landscape No one-size-fits-all solution: SQL, NoSQL, MapReduce, No standard, except Hadoop 2 Outline What is Hadoop? Who uses it? Architecture HDFS MapReduce Open

More information

Lecture 2 (08/31, 09/02, 09/09): Hadoop. Decisions, Operations & Information Technologies Robert H. Smith School of Business Fall, 2015

Lecture 2 (08/31, 09/02, 09/09): Hadoop. Decisions, Operations & Information Technologies Robert H. Smith School of Business Fall, 2015 Lecture 2 (08/31, 09/02, 09/09): Hadoop Decisions, Operations & Information Technologies Robert H. Smith School of Business Fall, 2015 K. Zhang BUDT 758 What we ll cover Overview Architecture o Hadoop

More information

An Overview of Hadoop

An Overview of Hadoop 1 / 26 An Overview of The Ohio State University Department of Linguistics 2 / 26 What is? is a software framework for scalable distributed computing 3 / 26 MapReduce Follows Google s MapReduce framework

More information

Design and Evolution of the Apache Hadoop File System(HDFS)

Design and Evolution of the Apache Hadoop File System(HDFS) Design and Evolution of the Apache Hadoop File System(HDFS) Dhruba Borthakur Engineer@Facebook Committer@Apache HDFS SDC, Sept 19 2011 Outline Introduction Yet another file-system, why? Goals of Hadoop

More information

Hadoop: Understanding the Big Data Processing Method

Hadoop: Understanding the Big Data Processing Method Hadoop: Understanding the Big Data Processing Method Deepak Chandra Upreti 1, Pawan Sharma 2, Dr. Yaduvir Singh 3 1 PG Student, Department of Computer Science & Engineering, Ideal Institute of Technology

More information

Istanbul Şehir University Big Data Camp 14. Hadoop Map Reduce. Aslan Bakirov Kevser Nur Çoğalmış

Istanbul Şehir University Big Data Camp 14. Hadoop Map Reduce. Aslan Bakirov Kevser Nur Çoğalmış Istanbul Şehir University Big Data Camp 14 Hadoop Map Reduce Aslan Bakirov Kevser Nur Çoğalmış Agenda Map Reduce Concepts System Overview Hadoop MR Hadoop MR Internal Job Execution Workflow Map Side Details

More information

Job Oriented Instructor Led Face2Face True Live Online I.T. Training for Everyone Worldwide

Job Oriented Instructor Led Face2Face True Live Online I.T. Training for Everyone Worldwide H2kInfosys H2K Infosys provides online IT training and placement services worldwide. www.h2kinfosys.com USA- +1-(770)-777-1269, UK (020) 33717615 Training@H2KINFOSYS.com / H2KInfosys@gmail.com DISCLAIMER

More information

Lambda Architecture. CSCI 5828: Foundations of Software Engineering Lecture 29 12/09/2014

Lambda Architecture. CSCI 5828: Foundations of Software Engineering Lecture 29 12/09/2014 Lambda Architecture CSCI 5828: Foundations of Software Engineering Lecture 29 12/09/2014 1 Goals Cover the material in Chapter 8 of the Concurrency Textbook The Lambda Architecture Batch Layer MapReduce

More information

HDInsight Essentials. Rajesh Nadipalli. Chapter No. 1 "Hadoop and HDInsight in a Heartbeat"

HDInsight Essentials. Rajesh Nadipalli. Chapter No. 1 Hadoop and HDInsight in a Heartbeat HDInsight Essentials Rajesh Nadipalli Chapter No. 1 "Hadoop and HDInsight in a Heartbeat" In this package, you will find: A Biography of the author of the book A preview chapter from the book, Chapter

More information

COSC 6397 Big Data Analytics. Distributed File Systems (II) Edgar Gabriel Spring 2014. HDFS Basics

COSC 6397 Big Data Analytics. Distributed File Systems (II) Edgar Gabriel Spring 2014. HDFS Basics COSC 6397 Big Data Analytics Distributed File Systems (II) Edgar Gabriel Spring 2014 HDFS Basics An open-source implementation of Google File System Assume that node failure rate is high Assumes a small

More information

5 HDFS - Hadoop Distributed System

5 HDFS - Hadoop Distributed System 5 HDFS - Hadoop Distributed System 5.1 Definition and Remarks HDFS is a file system designed for storing very large files with streaming data access patterns running on clusters of commoditive hardware.

More information

Hadoop: Embracing future hardware

Hadoop: Embracing future hardware Hadoop: Embracing future hardware Suresh Srinivas @suresh_m_s Page 1 About Me Architect & Founder at Hortonworks Long time Apache Hadoop committer and PMC member Designed and developed many key Hadoop

More information

Hadoop Framework. technology basics for data scientists. Spring - 2014. Jordi Torres, UPC - BSC www.jorditorres.eu @JordiTorresBCN

Hadoop Framework. technology basics for data scientists. Spring - 2014. Jordi Torres, UPC - BSC www.jorditorres.eu @JordiTorresBCN Hadoop Framework technology basics for data scientists Spring - 2014 Jordi Torres, UPC - BSC www.jorditorres.eu @JordiTorresBCN Warning! Slides are only for presenta8on guide We will discuss+debate addi8onal

More information

Distributed File Systems

Distributed File Systems Distributed File Systems Paul Krzyzanowski Rutgers University October 28, 2012 1 Introduction The classic network file systems we examined, NFS, CIFS, AFS, Coda, were designed as client-server applications.

More information

Open source Google-style large scale data analysis with Hadoop

Open source Google-style large scale data analysis with Hadoop Open source Google-style large scale data analysis with Hadoop Ioannis Konstantinou Email: ikons@cslab.ece.ntua.gr Web: http://www.cslab.ntua.gr/~ikons Computing Systems Laboratory School of Electrical

More information

HADOOP MOCK TEST HADOOP MOCK TEST II

HADOOP MOCK TEST HADOOP MOCK TEST II http://www.tutorialspoint.com HADOOP MOCK TEST Copyright tutorialspoint.com This section presents you various set of Mock Tests related to Hadoop Framework. You can download these sample mock tests at

More information

Hadoop Submitted in partial fulfillment of the requirement for the award of degree of Bachelor of Technology in Computer Science

Hadoop Submitted in partial fulfillment of the requirement for the award of degree of Bachelor of Technology in Computer Science A Seminar report On Hadoop Submitted in partial fulfillment of the requirement for the award of degree of Bachelor of Technology in Computer Science SUBMITTED TO: www.studymafia.org SUBMITTED BY: www.studymafia.org

More information