| Apache Pig |
| =========== |
| Pig is a dataflow programming environment for processing very large files. Pig's |
| language is called Pig Latin. A Pig Latin program consists of a directed |
| acyclic graph where each node represents an operation that transforms data. |
| Operations are of two flavors: (1) relational-algebra style operations such as |
| join, filter, project; (2) functional-programming style operators such as map, |
| reduce. |
| |
| Pig compiles these dataflow programs into (sequences of) map-reduce or Apache Tez |
| jobs and executes them using Hadoop. It is also possible to execute Pig Latin |
| programs in a "local" mode (without Hadoop cluster), in which case all |
| processing takes place in a single local JVM. |
| |
| General Info |
| =============== |
| |
| For the latest information about Pig, please visit our website at: |
| |
| http://pig.apache.org/ |
| |
| and our wiki, at: |
| |
| http://wiki.apache.org/pig/ |
| |
| Getting Started |
| =============== |
| 1. To learn about Pig, try http://wiki.apache.org/pig/PigTutorial |
| 2. To build and run Pig, try http://wiki.apache.org/pig/BuildPig and |
| http://wiki.apache.org/pig/RunPig |
| 3. To check out the function library, try http://wiki.apache.org/pig/PiggyBank |
| |
| |
| Contributing to the Project |
| =========================== |
| |
| We welcome all contributions. For the details, please, visit |
| https://cwiki.apache.org/confluence/display/PIG/HowToContribute |
