Thank you for downloading the Yahoo! Distribution of Hadoop.

The Yahoo! Distribution of Hadoop is tested and deployed on Yahoo!’s clusters, which are the largest Hadoop clusters in the world. The Yahoo! Distribution of Hadoop is a source distribution that is based entirely on code found in the Apache Hadoop project. Please read the two documents below before you begin.

YAHOO-CHANGES.txt lists the additional patches that have been applied in this source distribution beyond those patches already committed to the Apache Subversion repository.

YAHOO-BUILDME.txt provides instructions onhow to perform a complete build of this source distribution.

APACHE-README.txt contains the original README information as supplied in the Apache release of Hadoop

PLEASE NOTE:

• Yahoo! does not offer any support for the Yahoo! Distribution of Hadoop.

• This distribution includes cryptographic software that is subject to U.S. export control laws and applicable export and import laws of other countries. BEFORE using any software made available from this site, it is your responsibility to understand and comply with these laws. This software is being exported in accordance with the Export Administration Regulations. As of June 2009, you are prohibited from exporting and re-exporting this software to Cuba, Iran, North Korea, Sudan, Syria and any other countries specified by regulatory update to the U.S. export control laws and regulations. Diversion contrary to U.S. law is prohibited.