Difference between MapReduce and PIG:
Both PIG and MapReduce does the same work. Both are used to process the data. When the PIG program is executed internally it converts into a MapReduce job and process the data. The following are the some of the differences between MR and PIG.
MapReduce
program expects the programming language skills for writing the business
logic.
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In Apache PIG there is no need of much programming
skills. The entire program is based on PIG transformations.
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Amount of code
is very large; we must write huge programming code.
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Amount of code is very less when compared to
MapReduce program. 200 lines of MapReduce program is equivalent to 10 lines
of Pig script.
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MapReduce
program is compiled and executed directly.
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Pig script internally converts into MapReduce
program and gets executed.
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Writing and
executing MapReduce programming is a bit complex task.
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Writing and Executing PIG script is a simple task
when compared with MapReduce.
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