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There is currently considerable enthusiasm around the MapReduce
(MR) paradigm for large-scale data analysis [17]. Although the
basic control flow of this framework has existed in parallel SQL
database management systems (DBMS) for over 20 years, some
have called MR a dramatically new computing model [8, 17]. In
this paper, we describe and compare both paradigms. Furthermore,
we evaluate both kinds of systems in terms of performance and de-
velopment complexity. To this end, we define a benchmark con-
sisting of a collection of tasks that we have run on an open source