MRUnit is a Java library that helps developers unit test Apache Hadoop map reduce jobs.

An implementation of Hadoop's mapred and mapreduce input and output formats for ORC files. They use the core reader and writer, but present the data to the user in Writable objects.

Hive Source

Kylin Source for JDBC

This project contains tweaks to the hbase 1.* map reduce jobs that work for bigtable. Specifically, HBase's Import M/R job has ZooKeeper referrence which needed to be removed in order to work with Bigtable.

Apache Nutch

Kylin Integration Test

Kylin - Source Assembly

Search Solr MapReduce Indexer

CloudGraph(tm) is a suite of Service Data Object (SDO) 2.1 services designed for relational and big-table style "cloud" databases, such as HBase and others.

Set of hadoop input/output formats for use in combination with hadoop streaming