EP357 | 系統設計懶懶學 – 每秒產生 50 億次寫入!拆解 Google Docs 高併發架構,教你如何設計萬人協作系統 episode artwork

EPISODE · Jul 3, 2026 · 30 MIN

EP357 | 系統設計懶懶學 – 每秒產生 50 億次寫入!拆解 Google Docs 高併發架構,教你如何設計萬人協作系統

from AI懶人報 · host 湯懶懶

這集我們要拆解 Google Docs 這類多人協作編輯器的幕後架構,看看它是如何在高併發的環境下,撐住成千上萬人同時編輯的挑戰。 🏗️ 💡 產品限制即架構邊界 👉 透過設定同時編輯的人數上限,我們能有效保護後端,避免系統過於複雜,也能確保使用者操作時的體驗維持在水準之上。 💡 OT 與 CRDT 的權衡 👉 這兩種演算法各有千秋,OT 依賴中心化的伺服器,而 CRDT 則透過數學排序去中心化,開發者必須在架構複雜度與記憶體開銷之間做出選擇。 💡 讀寫分離的策略 👉 透過 CQRS 將寫入與查詢拆成兩條路徑,能有效解決大規模系統中常見的延遲問題,讓讀取速度變快。 💡 事件溯源的思維 👉 系統其實不儲存文件的最終狀態,而是儲存所有人的操作紀錄,這讓查看版本歷史變得非常容易,甚至像是免費獲得的功能。 💡 處理意圖而非結果 👉 為了節省傳輸頻寬,系統傳送的都是微小的差異更新,這是實現即時協作的關鍵,確保大家的螢幕畫面都能同步。 📎 參考資料: Design Google Docs - System Design Interview(2025/5/30・101,875 views) https://www.youtube.com/watch?v=9JKBlkwg0yM Design Google Docs | System Design Interview (with Amazon Engineer, ex-Microsoft)(2025/10/23・72,890 views) https://www.youtube.com/watch?v=cL9If4X7aaE 12: Design Google Docs/Real Time Text Editor | Systems Design Interview Questions With Ex-Google SWE(2024/2/17・59,372 views) https://www.youtube.com/watch?v=YCjVIDv0zQY ✅ System Design 10: Design Real-time Collaborative Text Editor like Google Docs | Notion | HLD | LLD(2025/6/26・15,189 views) https://www.youtube.com/watch?v=-eMtcFqj8vI 歡迎請我喝杯咖啡,幫助我繼續把節目做得更好唷~! 👉 https://buymeacoffee.com/ailanrenbao -- Hosting provided by SoundOn

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EP357 | 系統設計懶懶學 – 每秒產生 50 億次寫入!拆解 Google Docs 高併發架構,教你如何設計萬人協作系統

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