Tag: design-tidb

All the articles with the tag "design-tidb".

• System Design - How TiDB TTL Workers Delete Expired Rows

  6 Oct, 2026

  Follow an expired row through five TiDB TTL worker types: key-range scanning, the delete-task channel, guarded DELETE transactions, retry handling, and the settings that control their impact on TiKV.

• System Design - How TiDB Auto Analyze Works

  5 Oct, 2026

  A source-code walkthrough of TiDB auto analyze, from the stats-owner scheduler and priority queue to TiDB's Analyze executor and TiKV coprocessor.