Journal article

In-Network Support for Transaction Triaging


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  • 01.05.2021
Published in:
  • Proceedings of the VLDB Endowment. - 2021, vol. 14, no. 9, p. 1626-1639
English We introduce Transaction Triaging, a set of techniques that manipulate streams of transaction requests and responses while they travel to and from a database server. Compared to normal transaction streams, the triaged ones execute faster once they reach the database. The triaging algorithms do not interfere with the transaction execution nor require adherence to any particular concurrency control method, making them easy to port across database systems.
Transaction Triaging leverages recent programmable networking hardware that can perform computations on in-fight data. We evaluate our techniques on an in-memory database system using an actual programmable hardware network switch. Our experimental results show that triaging brings enough performance gains to compensate for almost all networking overheads. In high-overhead network stacks such as UDP/IP, we see throughput improvements from 2.05× to 7.95×. In an RDMA stack, the gains range from 1.08× to 1.90× without introducing signifcant latency.
Faculté des sciences et de médecine
Département d'Informatique
  • English
Computer science and technology
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