We released a new version 0.3 for TREC Web track participants that work on the new ClueWeb12 dataset. The code now uses the new Hadoop API. The code was tested on Cloudera's cdh3u5 Hadoop distribution, Hadoop version 0.20.2, and with some minor tweaks of the build.xml file also on Cloudera cdh4 versions. Download MIREX at:
http://mirex.sourceforge.net.