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Leveraging Endpoint Flexibility in Data-Intensive Clusters

Many applications do not constrain the destinations of their network transfers. New opportunities emerge when such transfers contribute a large amount of network bytes. By choosing the endpoints to avoid congested links, completion times of these transfers as well as that of others without similar flexibility can be improved. In this paper, the authors focus on leveraging the flexibility in replica placement during writes to Cluster File Systems (CFSes), which account for almost half of all cross-rack traffic in data-intensive clusters. The replicas of a CFS write can be placed in any subset of machines as long as they are in multiple fault domains and ensure a balanced use of storage throughout the cluster.

Provided by: Association for Computing Machinery Topic: Data Centers Date Added: Jun 2013 Format: PDF

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