[crb]

Hadoop was the first (major) open-source implementation of Google's MapReduce framework. http://research.google.com/archive/mapreduce.html

In terms of data warehousing and near-real-time query over Big Data, Google's framework for that is called "Dremel", http://research.google.com/pubs/pub36632.html

Google offer Dremel as a service known as BigQuery.