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EP380 | 系統設計懶懶學 – 交易平台架構大拆解:Robinhood 如何利用 CQRS 讀寫分離,同時扛住報價推播與訂單寫入? episode artwork

EPISODE · Aug 5, 2026 · 28 MIN

EP380 | 系統設計懶懶學 – 交易平台架構大拆解:Robinhood 如何利用 CQRS 讀寫分離,同時扛住報價推播與訂單寫入?

from AI懶人報 · host 湯懶懶

🚀 特別感謝贊助 本集節目由 VoAI 絕好聲創 提供技術支援。 🎤 VoAI 提供最有「台灣味」的 AI 聲音,支援情感語音、台式口音,甚至能一鍵生成虛擬人! 🎁 AI懶人報聽眾專屬優惠: 👉 輸入優惠碼 AILRB26 立享 95 折! 立刻體驗:https://www.voai.ai/ 這集我們要拆解像 Robinhood 這種股票交易平台的架構,看看他們如何在千萬用戶同時上線時,既能維持即時報價,又能搞定每秒上千筆的訂單處理。這類系統的規模很大,每天要服務一千萬名活躍用戶,系統底層的設計必須非常講究。 💡 拆分讀寫管道 (CQRS) 👉 把報價推播跟訂單執行分開處理,因為這兩者的效能要求完全不同,拆開來才不會互相拖累。 💡 建立流量緩衝機制 👉 在訂單寫入時用 Apache Kafka 擋在前面,就算開盤瞬間湧入大量流量,系統也不會直接崩潰。 💡 記憶體運算取代資料庫 👉 報價處理改用記憶體裡的資料結構,把原本硬碟讀寫的「秒級」延遲,縮短到「毫秒級」,效率快非常多。 💡 釐清系統邊界與裁判權 👉 記住券商只是中間人,最後的交易狀態一定要以交易所為準,避免在收到確認前就亂更新資料,導致重複扣款的慘劇。 💡 物理層面的延遲對齊 👉 為了公平,交易所甚至會調整光纖線路的長度,確保每一家券商伺服器收到的訊號,在物理距離上完全一致。 📎 參考資料: Stock Trading App System Design Interview | Meta System Design(2025/4/29・333,121 views) https://www.youtube.com/watch?v=a5rABvMQ53U System design interview: Design Robinhood (with ex-Google SWE)(2023/9/21・64,351 views) https://www.youtube.com/watch?v=Zvr-ffhvw0Y 27: High Throughput Stock Exchange | Systems Design Interview Questions With Ex-Google SWE(2024/6/15・45,981 views) https://www.youtube.com/watch?v=dGYfpO3WJ1o ✅ System Design 12: Design Stock Broker Trading Application like Zerodha | Grow | Upstox | HLD | LLD(2025/8/2・16,012 views) https://www.youtube.com/watch?v=W5FJnSywmLE Robinhood Stock Exchange System Design | How to Receive Realtime Stock Updates(2022/1/28・65,900 views) https://www.youtube.com/watch?v=gQfaWHOrITI 26: Robinhood Stock Trading Platform | Systems Design Interview Questions With Ex-Google SWE(2024/6/8・27,640 views) https://www.youtube.com/watch?v=SAa6xFyATcw Zerodha Stock Broker System Design with @KeertiPurswani(2023/5/17・68,777 views) https://www.youtube.com/watch?v=DH2-vDPFiE4 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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EP380 | 系統設計懶懶學 – 交易平台架構大拆解:Robinhood 如何利用 CQRS 讀寫分離,同時扛住報價推播與訂單寫入?

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