packtpub Free Learning - Daily Free eBook

[Isuru]

July 24 2016

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.

What You Will Learn

• Learn about the factors that affect MapReduce performance
  
• Utilize the Hadoop MapReduce performance counters to identify resource bottlenecks
  
• Size your Hadoop cluster’s nodes
  
• Set the number of mappers and reducers correctly
  
• Optimize mapper and reducer task throughput and code size using compression and Combiners
  
• Understand the various tuning properties and best practices to optimize clusters
  

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