Having a ChuQL at XML on the Cloud

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Provided by: University of Toledo
Topic: Cloud
Format: PDF
MapReduce/Hadoop has gained acceptance as a framework to process, transform, integrate, and analyze massive amounts of web data on the cloud. The MapReduce model (simple, fault tolerant, data parallelism on elastic clouds of commodity servers) is also attractive for processing enterprise and scientific data. Despite XML ubiquity, there is yet little support for XML processing on top of MapReduce. In this paper, the authors describe ChuQL, a MapReduce extension to XQuery, with its corresponding Hadoop implementation. The ChuQL language incorporates records to support the key/value data model of MapReduce, leverages higher-order functions to provide clean semantics, and exploits side-effects to fully expose to XQuery developers the Hadoop framework.
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