Hadoop: The Definitive Guide helps you harness the power of your data. Ideal for processing large datasets, the Apache Hadoop framework is an open source implementation of the MapReduce algorithm on which Google built its empire.

This can be useful whenever you create lists with rows that should have a unique id, for example in product backlogs, requirement lists, etc. Create serial number in excel. This works okay as long as the rows are in the original order but when sorting and filtering is used it can be a little difficult to know what the next row id should be. Often you type these ids by hand, the first starting with 1 and then increasing the id for each consecutive row.

This repository contains the example code for Hadoop: The Definitive Guide, Fourth Editionby Tom White (O'Reilly, 2014).

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Code for the First, Second, and Third Editions is also available.

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Note that the chapter names and numbering has changed between editions, seeChapter Numbers By Edition.

Building and Running

To build the code, you will first need to have installed Maven and Java. Then type

This will do a full build and create example JAR files in the top-level directory (e.g.hadoop-examples.jar).

To run the examples from a particular chapter, first install the componentneeded for the chapter (e.g. Hadoop, Pig, Hive, etc), then run the command lines shownin the chapter.

Sample datasets are provided in the input directory, but the full weather datasetis not contained there due to size restrictions. You can find information about how to obtainthe full weather dataset on the book's website at [http://www.hadoopbook.com/](http://www.hadoopbook.com/).

Hadoop Component Versions

This edition of the book works with Hadoop 2. It has not been tested extensively withHadoop 1, although most of it should work.

For the precise versions of each component that the code has been tested with, seebook/pom.xml.

Hadoop The Definitive Guide Pdf 4th Edition

Copyright

Hadoop The Definitive Guide Pdf Software

Copyright (C) 2014 Tom White