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arXiv · 2303.18142

Shirakami: A Hybrid Concurrency Control Protocol for Tsurugi Relational Database System

Takayuki Tanabe·Shinichi Umegane·Suguru Arakawa·Ryoji Kurosawa·Takashi Hoshino·Hideyuki Kawashima·Masahiro Tanaka·Takashi Kambayashi
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Abstract

Bill-of-materials and telecommunications billing applications need to process both short and long read-write transactions simultaneously. Recent work rarely addresses such evolving workloads. To deal with these workloads, we propose a new concurrency control protocol, Shirakami. Shirakami is a hybrid protocol. The first protocol, Shirakami-LTX, is for long read-write transactions based on multiversion view serializability. The second protocol, Shirakami-OCC, is for short transactions based on Silo. Shirakami naturally integrates them with write-preservation and epoch-based synchronization. It does not require dynamic protocol switching and provides stable performance. We implemented Shirakami as the transaction processing module of the Tsurugi system, which is a production-grade relational database system. The experimental results demonstrated that Tsurugi was at least 7.9x faster than PostgreSQL, and Shirakami-LTX exhibited 680x higher throughput than Shirakami-OCC.

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Takayuki Tanabe, Shinichi Umegane, Suguru Arakawa, Ryoji Kurosawa, Takashi Hoshino, Hideyuki Kawashima, Masahiro Tanaka, Takashi Kambayashi. 2023-03-31. Shirakami: A Hybrid Concurrency Control Protocol for Tsurugi Relational Database System. https://arxiv.org/abs/2303.18142

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