We got the following email from Larry Rosen, Apache's legal counsel.
On Apr 22, 2010, at 7:49 PM, Lawrence Rosen wrote:
To: ASF Board
Several weeks ago I sought clarification from Google about its
recent patent 7,650,331 ["System and method for efficient large-
scale data processing"] that may be infringed by implementation of
the Apache Hadoop and Apache MapReduce projects. I just received
word from Google's general counsel that "we have granted a license
for Hadoop, terms of which are specified in the CLA."
I am very pleased to reassure the Apache community about Google's
continued generosity and commitment to ASF and open source. Will
someone here please inform the Apache Hadoop and Apache MapReduce
projects that they need not worry about this patent.
Rosenlaw & Einschlag, a technology law firm (www.rosenlaw.com)
3001 King Ranch Road, Ukiah, CA 95482
Office: 707-485-1242 Cell: 707-478-8932
Apache Software Foundation, member and counsel (www.apache.org)
Open Web Foundation, board member (www.openwebfoundation.org)
Stanford University, Instructor in Law
Author, Open Source Licensing: Software Freedom and Intellectual
Property Law (Prentice Hall 2004)