2026-11-02·by Sijie Wang#fundamentals#storage

storage

存储

数据库怎么让并发的读者和写者互不妨碍、怎么承诺一次提交之后断电也不丢、怎么在几亿行里用几次读页找到一行——以及这一切在最底层如何被磁盘的块大小与随机 IOPS 定价。

本组:mvcc 管读写分离,isolation-levels 管这份分离按什么契约出售,wal 管持久性,b-tree 管找行,io-block-size-and-iops 管以上一切都要面对的价目表。

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storage — Sijie Wang