Hadoop PIG Part I
- What is and Why Pig?
- Executing Pig
- Pig Latin concepts
- Pig Latin script: operators & functions
- Pig Latin script: structure
- Pig Latin relational operators
- Pig examples
What is and Why Apache Pig?
- Apache Pig is a platform for analyzing large data sets and is made of
- Pig Latin: a high-level, data flow, scripting language for expressing data analysis
- Pig runtime: infrastructure for evaluating these scripts
- Pig scripts written in Pig Latin are automatically converted into MapReduce jobs by the Pig runtime
- Pig scripts are much easier to create and run than MapReduce code
- Designed to be used by data analysts without the help of MapReduce Java developers
- Pig is widely used as an alternative to MapReduce
- Extensively used in Yahoo, LinkedIn, Twitter, NetFlix, etc
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