數據庫管理系統（簡稱 DBMS）無疑是任何數據密集型應用程序當中最為重要的組成部分，其肩負著處理大量數據以及高復雜性工作負載的重任。然而，數據庫管理系統本身卻往往難於管理，因為其中通常包含數百種配置“旋鈕”，用於控制諸如緩存內存分配量以及存儲介質數據寫入頻率等要素。各類企業一般需要聘請專業人士以協助相關調配工作，但對於大多數企業而言，此類專業人才的開價亦相當高昂。而實際上，DBA所面臨的挑戰還遠不止這些。

而今天一則名為“OtterTune”的機器學習DBMS系統刷爆了朋友圈。那麽，這個由亞馬遜和卡內基梅隆大學一起開發的DBMS系統究竟是什麽呢？能提供什麽服務呢？其實OtterTune並不是多麽驚奇的系統，不過是自動化方式識別出最適當當前數據庫管理系統配置需求的設置組合。OtterTune 與其它 DBMS 配置工具之間的主要差別在於，其能夠利用自此前 DBMS 部署工作當中積累到的知識指導新系統的配置工作。這一設計思路顯然降低了新 DBMS 部署方案在調整當中所需要的時間與資源投入。而為了實現這一目標，OtterTune 專門建立起一套數據庫，用以收集從此前調節會話中提取到的重要信息。其利用這部分數據建立機器學習（簡稱 ML）模型，用以捕捉 DBMS 在面對不同配置方案時作出怎樣的響應。OtterTune 還利用這些模型以指導新型應用程序的配置實驗，並提供推薦設置以提升目標運作效果（例如減少延遲或者提高數據吞吐量）。
雖然OtterTune只是一個結合了機器學習(建模、調參數、獲取系統反應、學習、產生最優參數；典型的臨床學)，可用於參數優化的小軟件(實際上DBA的工作遠不止這些)，但是已經代表了一個方向，未來越來越多的活（枯燥的活）可能會被AI取代。但是現階段很多DBA很多離不開人的幹預。

人類DBA VS機器DBA

首先，我們看看DBA的工作有哪些？DBA的工作實際上都是圍繞數據庫展開，包含但不限於這些工作：

數據庫、主機、操作系統、交換機、存儲選型，預算，架構設計，部署，參數優化；

數據庫備份、恢復、容災、HA、新老硬件更替；

數據庫SQL審計、SQL優化、異常問題診斷、性能優化、巡檢、健康診斷；

數據庫擴容、縮容、遷移；

數據庫版本升級、補丁修復；

數據庫開發規範、管理規範的指定和執行；

數據庫監控、專家、審核系統的開發與建立；

數據庫代碼覆蓋率測試、功能測試、建模、壓測、profiling；

數據庫讀寫分離、sharding、MPP系統的構建；

數據庫開發、管理、設計、規範培訓；

數據庫在垂直行業應用的架構設計（例如OLAP、GIS、時序、流計算、圖式搜索、文本搜索、圖搜索、化學、基因、等）；

異構數據、同構數據源的數據同步、ETL；

數據庫與其他系統的聯動；

數據庫雲產品化、Docker化、虛擬化等相關的工作；

數據庫內核的研究、BUG上報、結合業務提出對內核的功能、性能提升等需求；

關註不同數據庫產品的roadmap、優缺點、適應場景、不適應場景；

關註數據庫行業的發展，進行預研性研究，儲備技術；

與技術社區保持緊密聯系，從參與、了解同行、到分享，從商業產品到開源社區；

技術為業務服務，從本質觸發，深入行業，了解業務、行業的發展，抓住核心點，更好的服務於業務。

可以看到DBA的工作還是有蠻多的，AI要完全取代這些工作，還有非常漫長的過程。

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http://bbs.guilinlife.com/thread-9114661-1-1.html
http://bbs.guilinlife.com/thread-9114662-1-1.html

就是說這些SQL文本不完全相同的目標SQL之間是沒法重用解析