一個DEGREE引發的SESSION狂潮

來源:互聯網
上載者:User

10.1做了HUGE TABLE SPLITE TO PARTITION TABLE的動作。過程順利。


起來以後進入生產環節,發現部分報表程式變慢。分析過程發現SESSION數很高,ACTIVE SESSION也是會不是沖高。


之後發現INDEX的DEGREE參數為32,結果造成INDEX的並發過大,導致ACTIVE SESSION狂飆。

後將DEGREE下降到8,一切歸於平靜。


DBA_INDEXES

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