Abstract:How to reduce the costly cross-rack data transferring is challenging in improving the performance of MapReduce platforms. Previous schemes mainly exploit the data locality in the Map phase to reduce the cross-rack communications. However, the Map locality based schemes may lead to highly skewed distribution of Map tasks across racks in the platform, resulting in serious load imbalance among different cross-rack links during Shuffling. Recent research results show that the slow Shuffling is the root cause of th… Show more
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