Mariadb on My Bloghttps://thaig2pro.github.io/en/tags/mariadb/Recent content in Mariadb on My BlogHugo -- 0.146.0enMon, 05 Oct 2026 10:40:00 +0700A Counter Said MariaDB Wrote Its Redo Log Every 5.6 ms. It Wrote It Once a Second.https://thaig2pro.github.io/en/posts/bo-dem-cung-ten-khac-nghia-mariadb-dem-ca-buffer/Mon, 05 Oct 2026 10:40:00 +0700https://thaig2pro.github.io/en/posts/bo-dem-cung-ten-khac-nghia-mariadb-dem-ca-buffer/Same InnoDB counter name, two servers, two meanings. On MariaDB 11.8 it tracks redo generated, not written, and hid a one-second loss window under kill -9.I Wrote the Index Escalation Threshold as a Number, Then Measured It and Found It Off by 15x to 100xhttps://thaig2pro.github.io/en/posts/khong-them-index-viet-nguong-leo-thang-thanh-so/Mon, 28 Sep 2026 11:30:00 +0700https://thaig2pro.github.io/en/posts/khong-them-index-viet-nguong-leo-thang-thanh-so/A voucher filter merged without an index on a table another team owns, with a written trigger for asking them. A bench later showed the trigger's two clauses disagree by DB version.