Official site: https://github.com/GoogleCloudPlatform/appengine-mapreduce

Check the site for up to date status, latest version, getting started & user guides and other documentation.

Archive contents:

• python : python version of the library resides here
  • build.sh : use this to run tests for python library, build and run demo app
  • src : python source code for mapreduce library
  • tests : tests for mapreduce library
  • demo : a demo application that uses the map reduce.
• java : java version of the library
  • build.xml : ant build file