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Optimizing Hadoop for MapReduce

You're reading from  Optimizing Hadoop for MapReduce

Product type Book
Published in Feb 2014
Publisher
ISBN-13 9781783285655
Pages 120 pages
Edition 1st Edition
Languages
Author (1):
Khaled Tannir Khaled Tannir
Profile icon Khaled Tannir

Investigating the Hadoop parameters


As discussed in Chapter 1, Understanding MapReduce, there are many factors that may affect the Hadoop MapReduce performance. In general, workload-dependent Hadoop performance optimization efforts have to focus on three major categories: the system hardware, the system software, and the configuration and tuning/optimization of the Hadoop infrastructure components.

It is good to point out that Hadoop is classified as a highly-scalable solution, but not necessarily as a high-performance cluster solution. Administrators can configure and tune a Hadoop cluster with various configuration options. Performance configuration parameters focus mainly on CPU utilization, memory occupation, disk I/O, and network traffic. Besides the main performance parameters of Hadoop, other system parameters such as inter-rack bandwidth may affect the overall performance of the cluster.

Hadoop can be configured and customized according to the user's needs; the configuration files...

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