Streaming state management methods for real-time data deduplication

  • João V. A. Esteves Universidade do Estado do Rio de Janeiro
  • Sérgio Lifschitz Pontifícia Universidade Católica do Rio de Janeiro
  • Rosa M. E. M. Costa Universidade do Estado do Rio de Janeiro
  • Ana Carolina Almeida Universidade do Estado do Rio de Janeiro


Data duplication is a common problem on data streams processing applications that occurs due to software error or adoption of data loss prevention measures, jeopardizing real-time data analyses. This paper explores stream-based deduplication methods to identify challenges from these methods and proposes a decision method to choose the most appropriate strategy for a domain. This work investigates native solutions and auxiliary tools to provide data deduplication and fault tolerance. The experimental results show that it is necessary to use fast additional storage to persist the read keys, as long as they can appear, or to use the optimized storage, with a quick key search.

Palavras-chave: stateful streaming, state management, apache spark, data streaming, data deduplication, real-time processing


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ESTEVES, João V. A.; LIFSCHITZ, Sérgio; COSTA, Rosa M. E. M.; ALMEIDA, Ana Carolina. Streaming state management methods for real-time data deduplication. In: SIMPÓSIO BRASILEIRO DE BANCO DE DADOS (SBBD), 35. , 2020, Evento Online. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2020 . p. 265-270. ISSN 2763-8979. DOI: