README

Welcome to Apache Crunch (Incubating)!
======================================

Apache Crunch is a Java library for writing, testing, and running Hadoop
MapReduce pipelines, based on Google's FlumeJava. Its goal is to make
pipelines that are composed of many user-defined functions simple to write,
easy to test, and efficient to run.

For more information please see the website:

  http://incubator.apache.org/crunch/


Building the Source Code
------------------------

We recommend Maven 3 and JDK 6 for building Crunch. To build the project
run the following Maven command:

  mvn package

To run the integration test suite and to install the created JARs in your
local Maven cache:

  mvn install

Crunch has experimental support for Hadoop 2 through the "hadoop-2" build
profile (add -Phadoop-2 to enable it). If you want to use HBase support on
Hadoop 2, please note that you have to build HBase 0.94.1 from source using
the following command:

  mvn clean install -Dhadoop.profile=2.0