Message distribution method and device based on multiple hashes
A shunting device and re-hashing technology, which is applied in the computer field, can solve problems such as conflicts and long time-consuming shunting and filtering, and achieve the effects of improving construction efficiency, submitting shunting efficiency, and improving shunting efficiency
Active Publication Date: 2018-06-01
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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The invention provides a message distribution method and device based on multiple hashes. The method comprises the steps of: respectively calculating two hash results by utilizing two hash algorithms,taking a result that a spatial main table is searched by utilization of one hash result as a reference index, and taking a result that a spatial sub-table is searched by utilization of the other hashresult as an auxiliary index correction reference index. The device comprises a first calculation unit, a second calculation unit, a first searching unit, a second searching unit and a third calculation unit; the first calculation unit is used for calculating a hash result A by utilizing a hash algorithm A; the second calculation unit is used for calculating a hash result B by utilizing a hash algorithm B; the first searching unit is used for searching a hash spatial main table by utilizing the result A, so that a search result a is obtained; the second searching unit is used for searching ahash spatial sub-table by utilizing the result B, so that a search result b is obtained; and the third calculation unit is used for judging a conflict condition of the search result a, and calculatinga search destination table item index. According to the message distribution method and device based on multiple hashes provided by the invention, a double-hash search sequence is constructed by utilization of two hash functions; therefore, the conflict is effectively avoided; the distribution time is saved; and the distribution efficiency is increased.
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