tursodatabase/libsql

Switch to locking_mode EXCLUSIVE in libSQL server?

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#1,630 创建于 2024年8月3日

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 (2 评论) (1 反应) (0 负责人)C (16,744 star) (490 fork)batch import
enhancementhelp wantedquestion

描述

SQLite acquires a POSIX advisory lock by default for every read transaction. Let's consider switching to PRAGMA locking_mode=EXCLUSIVE to make SQLite acquire the POSIX advisory lock when a database file is opened, which improves read performance.

贡献者指南

技术栈
c
领域
backenddatabaseperformance
议题类型
performance
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-2 days
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
fresh
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
C programmingSQLite internalsPOSIX advisory locks
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
45
研究方向
Investigate where the SQLite database connection is opened in libSQL server code (likely in files handling database initialization). Evaluate the impact of switching to PRAGMA locking mode=EXCLUSIVE on read performance and compatibility with concurrent writes. Consider any trade offs and test with existing benchmarks.
Switch to locking_mode EXCLUSIVE in libSQL server? · tursodatabase/libsql#1630 | Good First Issue