Abstract
In response to store and retrieve massive Data, many companies have prefer using a distributed database. HBase, as an open source distribute column-oriented database, has been widely used for its advantages of low cost and high scalability. As an important basis of retrieving stored data, the design of rowkey will directly affect the efficiency and success rate of retrieving data in HBase database. By classifying information and encoding the data type in rowkey design by Huffman coding, data type can be effectively bound with the data content in order to provide the efficient solution for class-based information retrieving. The results of experiment shows that this design achieves retrieving information by category as well as improve the overall efficiency of retrieval.
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