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SubscribeFrom Observability to Observability Driven Development - 董淳吉 (Marcus Tung)
歡迎來到 DevOpsDay Taipei 2024 共筆
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Learn More →共筆入口：https://hackmd.io/@DevOpsDay/2024
手機版請點選上方 按鈕展開議程列表。
》議程介紹
》填寫議程滿意度問卷｜回饋建言給辛苦的講者
作者補充資訊
tags:
DevOpsDays Taipei 2024服務突然在週末下班時間crashed, 這時候會怎麼做?
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →300 多位高階管理者，50%有觀測性的60%縮短當機時間90%覺得有策略性價值
可觀測性演進的歷史
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →基於時間點的不同, 可觀測性也隨著時間演進
o11y 1.0 to 2.0
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Learn More →o11y 1.0 : 請求打到server 把經過路徑遙測出來：是慢的？壞的？
目的用於瞭解系統狀態, 簡短MTTR
三種基本遙測資料
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Learn More →Metrics
建立 metrics 的目的是為了滿足對外的承諾.
Distributed Trace
追蹤的目的用來知道請求的節點路徑
Structured Log (結構化日誌)
問題排除流程
Alert ->. 查看dashboard -> 查詢 Adhoc -> ??? -> 查看追蹤資料 -> ???
哭啊 太快
o11y 1.0 延伸問題：
蒐集這麼多資料, 不一定具備價值, 能達成成本效益.
o11y 2.0
O11y signals 進化, 新增以下遙測資料類型
CNCF （雲端原生運算基金會）出白皮書
Profiling
深入應用程式得知cpu, mem stack, gc等情況
Shift Left
過往關注的是發布後的維運(Operate)情況.
開發流程是左移的重點
左移到哪？左移到 CI/CD, 左移到 coding
Deploy stage
CI/CD
可觀測性驅動開發 ＯＤＤ
Plan -> design -> develop -> test
目的
RD 主要面對是已知的未知
RD 培養數據決策化
ODD framework
定義 KPI -> 設計階段時考慮可觀測性 -> 蒐集遙測資料 -> 建立即時反饋機制 -> 持續優化與調整
Goal :
確保在開發週期時就具備良好的可觀測性
ODD 衡量指標 （有點抽象）
監控指標（系統健康）
系統架構：外部服務有？ 關鍵服務是？ 服務之間關係是？
識別關鍵服務, 外部服務, 釐清依賴關係, 識別重要情境
系統框架: MBMP(metrics-based process management)
Goal : SLA, SLOs, SLIs
ODD 衡量指標，以AI智能客服為例
監控指標：
系統架構：
系統框架: (看投影片)
Goal : 回答是
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Learn More →- The image file may be corrupted
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Learn More →o11y 3.0
3.0 A.B.C + OTel
AI : 很大的挑戰
Big Data :
OpenTelemetry : 各大廠商一起訂的，目前訂到四個信號
Cloud : 實際框架運行
小結
共筆聊天室：
Excel 數據師
有投影片嗎？