new BuildTermDocVectors(conf).run();
new ComputeGlobalTermStatistics(conf).run();
new BuildDictionary(conf).run();
new BuildIntDocVectors(conf).run();
new BuildIntDocVectorsForwardIndex(conf).run();
new BuildTermDocVectorsForwardIndex(conf).run();
conf.setInt(Constants.NumReduceTasks, indexPartitions);
conf.set(Constants.PostingsListsType, PostingsListDocSortedPositional.class.getCanonicalName());