https://benzhub.github.io/tags/postmaster/Recent content in Postmaster on BenzHubHugozh-TWWed, 17 Jun 2026 00:00:00 +0000https://benzhub.github.io/post/postgresql/011-background-processes/Wed, 17 Jun 2026 00:00:00 +0000https://benzhub.github.io/post/postgresql/011-background-processes/<blockquote> <p><strong>PostgreSQL</strong> 是多進程架構，除了處理客戶端請求的 Backend Process，還有一批背景進程（Background Processes）負責維護資料庫的健康。理解 <strong>Postmaster</strong>、<strong>Checkpointer</strong>、<strong>Background Writer</strong>、<strong>Autovacuum</strong> 等進程的職責、觸發條件與調校參數，是效能調校與穩定性維護的核心知識。</p> </blockquote>