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Mastering Hadoop

Mastering Hadoop

By : Karanth
4 (3)
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Mastering Hadoop

Mastering Hadoop

4 (3)
By: Karanth

Overview of this book

Do you want to broaden your Hadoop skill set and take your knowledge to the next level? Do you wish to enhance your knowledge of Hadoop to solve challenging data processing problems? Are your Hadoop jobs, Pig scripts, or Hive queries not working as fast as you intend? Are you looking to understand the benefits of upgrading Hadoop? If the answer is yes to any of these, this book is for you. It assumes novice-level familiarity with Hadoop.
Table of Contents (15 chapters)
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Preface
Preface
What this book covers
What you need for this book?
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
1. Hadoop 2.X
1. Hadoop 2.X
The inception of Hadoop
The evolution of Hadoop
Hadoop 2.X
Hadoop distributions
Summary
2
2. Advanced MapReduce
2. Advanced MapReduce
MapReduce input
The RecordReader class
Hadoop's "small files" problem
Filtering inputs
The Map task
The Reduce task
MapReduce output
MapReduce job counters
Handling data joins
Summary
3
3. Advanced Pig
3. Advanced Pig
Pig versus SQL
Different modes of execution
Complex data types in Pig
Compiling Pig scripts
Development and debugging aids
The advanced Pig operators
User-defined functions
Pig performance optimizations
Best practices
Summary
4
4. Advanced Hive
4. Advanced Hive
The Hive architecture
Data types
File formats
The data model
Hive query optimizers
Advanced DML
UDF, UDAF, and UDTF
Summary
5
5. Serialization and Hadoop I/O
5. Serialization and Hadoop I/O
Data serialization in Hadoop
Avro serialization
File formats
Compression
Summary
6
6. YARN – Bringing Other Paradigms to Hadoop
6. YARN – Bringing Other Paradigms to Hadoop
The YARN architecture
Developing YARN applications
Monitoring YARN
Job scheduling in YARN
YARN commands
Summary
7
7. Storm on YARN – Low Latency Processing in Hadoop
7. Storm on YARN – Low Latency Processing in Hadoop
Batch processing versus streaming
Apache Storm
Storm on YARN
Summary
8
8. Hadoop on the Cloud
8. Hadoop on the Cloud
Cloud computing characteristics
Hadoop on the cloud
Amazon Elastic MapReduce (EMR)
Summary
9
9. HDFS Replacements
9. HDFS Replacements
HDFS – advantages and drawbacks
Amazon AWS S3
Implementing a filesystem in Hadoop
Implementing an S3 native filesystem in Hadoop
Summary
10
10. HDFS Federation
10. HDFS Federation
Limitations of the older HDFS architecture
Architecture of HDFS Federation
HDFS high availability
HDFS block placement
Summary
11
11. Hadoop Security
11. Hadoop Security
The security pillars
Authentication in Hadoop
Authorization in Hadoop
Data confidentiality in Hadoop
Audit logging in Hadoop
Summary
12
12. Analytics Using Hadoop
12. Analytics Using Hadoop
Data analytics workflow
Machine learning
Apache Mahout
Document analysis using Hadoop and Mahout
RHadoop
Summary
13
A. Hadoop for Microsoft Windows
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A. Hadoop for Microsoft Windows
Deploying Hadoop on Microsoft Windows
Summary
14
Index
Index

Deploying Hadoop on Microsoft Windows

In this section, we will look in detail as to how we can build and install Hadoop natively on a Windows system. We will be using Windows 8 to install Hadoop. The same steps can be employed to install Hadoop on Windows Server 2008 or Windows 7. We will be installing Hadoop on a 64-bit Windows OS running on 64-bit hardware.

Prerequisites

Installing Hadoop on Windows requires the following platforms, software, and tools installed:

  • Java JDK: Java is the soul of Hadoop and requires it to be installed on the machine. Java from Oracle comes with the Java Runtime Environment (JRE) and the Java Development Kit (JDK). Hadoop installation requires the JDK. The JDK can be obtained from Oracle's website. To reiterate, it is very important to choose the JDK that is higher than 1.6. We will choose the latest—JDK 1.8. The following screenshot shows the page from where the JDK can be downloaded. In this example, we choose the Windows x64 product. A 32-bit...
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