Notes and essays on backend systems, databases, storage and AI infrastructure.https://cloudcleart-blog.pages.dev/https://cloudcleart-blog.pages.dev/articles/understanding-lsm-tree/https://cloudcleart-blog.pages.dev/articles/understanding-lsm-tree/A write path built around sequential I/O — and the trade-offs that follow.Tue, 08 Sep 2026 00:00:00 GMThttps://cloudcleart-blog.pages.dev/articles/mysql-index-design/https://cloudcleart-blog.pages.dev/articles/mysql-index-design/Think in access paths, selectivity, and the rows you do not want to read.Fri, 04 Sep 2026 00:00:00 GMT