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Mastering Hadoop

You're reading from Mastering Hadoop

Product type Book

Published in Dec 2014

Publisher

ISBN-13 9781783983643

Pages 374 pages

Edition 1st Edition

Languages

Concepts

Data Processing

Author (1):

Sandeep Karanth

Table of Contents (21) Chapters

Mastering Hadoop

Credits

About the Author

Acknowledgments

About the Reviewers

www.PacktPub.com

Preface

1. Hadoop 2.X

2. Advanced MapReduce

3. Advanced Pig

4. Advanced Hive

5. Serialization and Hadoop I/O

6. YARN – Bringing Other Paradigms to Hadoop

7. Storm on YARN – Low Latency Processing in Hadoop

8. Hadoop on the Cloud

9. HDFS Replacements

10. HDFS Federation

11. Hadoop Security

12. Analytics Using Hadoop

Hadoop for Microsoft Windows

Index

Different modes of execution

Pig has the following three modes of execution:

Interactive mode: In this mode, a grunt shell is provided to the user. Users can type in Pig commands in an interactive session with Pig and the Hadoop cluster.
Batch mode: In this mode, the user can write a series of Pig statements into a script file. The file can then be submitted for execution.
Embedded mode: In this mode, any Java program can invoke Pig commands by importing the Pig libraries.

Apart from these modes of execution, Pig can either be executed locally, in the local mode using the local execution environment, or on a Hadoop cluster execution environment in the mapreduce mode . In the former mode, all commands are executed on a single system using the local filesystem. If the –x switch is not specified, Pig defaults to running in the mapreduce mode. Specifying the –x switch gives the user an option to run in the local or mapreduce mode and use the appropriate execution environment. The HADOOP_CONF_DIR...

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Authors (1)

Sandeep Karanth

Sandeep Karanth is a technical architect who specializes in building and operationalizing software systems. He has more than 14 years of experience in the software industry, working on a gamut of products ranging from enterprise data applications to newer-generation mobile applications. He has primarily worked at Microsoft Corporation in Redmond, Microsoft Research in India, and is currently a cofounder at Scibler, architecting data intelligence products.

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