Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Optimizing Hadoop for MapReduce

You're reading from   Optimizing Hadoop for MapReduce This book is the perfect introduction to sophisticated concepts in MapReduce and will ensure you have the knowledge to optimize job performance. This is not an academic treatise; it's an example-driven tutorial for the real world.

Arrow left icon
Product type Paperback
Published in Feb 2014
Publisher
ISBN-13 9781783285655
Length 120 pages
Edition Edition
Tools
Arrow right icon
Author (1):
Arrow left icon
Khaled Tannir Khaled Tannir
Author Profile Icon Khaled Tannir
Khaled Tannir
Arrow right icon
View More author details
Toc

Summary


In this chapter, we introduced some scenarios and techniques that may help you to identify your cluster's weakness. You learned how to check your Hadoop cluster node's health and how to identify a massive I/O traffic. Also, we talked about how to identify CPU contention using the vmstat Linux tool.

Then we learned some formulas that you need to use in order to size your Hadoop cluster correctly. Also, in the last section, you learned how to configure the number of mappers and reducers correctly using a new, dedicated formula.

In the next chapter, you will learn more about profiling map and reduce tasks, and will dive more deeply in to the universe of Hadoop map and reduce tasks.

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image