For the masters-course Information retrieval led by prof.dr.ir. Th.P. van der Weide, we have build a cluster on which students practice with typical data-fitting problems. the assignments: assignment1 - Getting Started assignment2 - Inverted Index assignment2.5 - Logfile Analysing assignment3 -Page Rank The cluster: These are some pictures of the cluster, in the making. As one can see easily it is not a high-performance cluster, but as an educational tool and proof-of-concept very usable.