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Guest post by Durgesh Kaushik

Design Patterns are problem specific templates developers have perfected over the years for writing correct and efficient codes. It encodes correct practices for solving a given piece of problem, so that a developer need not re-invent the wheel. MapReduce program bugs can be hard to debug – using well established Design Patterns can alleviate the pain. This video explains the applications of one of the MapReduce Design Patterns, Join Pattern.

Check it out here: http://www.edureka.co/blog/application-of-join-pattern-mapreduce-design-patterns

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