Resumo

HERNANDEZ DELGADO, Royli  e  MACHIN ARMAS, Melvis. Distribution system of the search process in fingerprints databases. Rev cuba cienc informat [online]. 2014, vol.8, n.4, pp.157-170. ISSN 2227-1899.

The search process in a database system based on fingerprint identification (AFIS), has a significant influence in obtaining appropriate response times and system effectiveness. There are many search strategies such as centralization on a node to process all information and distribution process in parallel nodes participating in the search. In Identification and Security Digital Center an AFIS was developed to be included on their access control systems. This system reports low fault tolerance and time inefficient responses using a database of 10 000 fingerprints, due to the implementation of a centralized search process. To eliminate these problems with a system that provides a delivery service, performing a search on multiple nodes concurrently. RabbitMQ middleware was selected in order to establish communication between the different nodes participating in the search process. The solution provides a strategy for failure monitoring based on the redistribution of the database whenever a falling node is detected. Also, the results of performance testing using a database of 28 000 fingerprints showed that increasing the data processing, the centralized model identification slowed, while the use of the distribution service using only 3 search servers response times AFIS decreased by more than 50%.

Palavras-chave : AFIS; distribution; RabbitMQ; search process.

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