Tag: savanna

Improving Data Processing Performance with Hadoop Data Locality

One of the major bottlenecks in data-intensive computing is cross-switch network traffic. Fortunately, having map code executing on the node where the data resides significantly reduces this problem. This technique, called “data locality”, is one of the key advantages of Hadoop Map/Reduce. In this article, we’ll discuss the requirements for data locality, how the virtualized environment of OpenStack influences the Hadoop cluster topology, and how to achieve data locality using Hadoop with Savanna.

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