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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                mongo開啟慢查詢功能及查詢命令profile 查詢當前慢查詢設置的命令 ``` db.getProfilingLevel() ``` 設置慢查詢的命令 level有三種級別: 0:不開啟 1:紀錄慢命令,默認>100ms 2:記錄所有命令 ``` db.setProfilingLevel(1,120) ``` Mongodb Profile記錄是直接存在系統的db里,記錄位置是system.profile system.profile是一個固定集合.只需要查詢這個Collection的記錄就能獲取到需要的profile記錄了 查詢命令如下: ``` db.system.profile.find().pretty() ``` 也可以搭配查詢參數來查詢,比如查詢最新的記錄使用命令 ``` db.system.profile.find().sort({$natural:-1}).pretty() ``` 還有一種更簡潔的命令,可以查看最近的5條記錄 ``` show profile ``` 清空還原命令: ``` db.setProfilingLevel(0) db.system.profile.drop() db.createCollection("system.profile",{ capped: true, size:4000000 }) db.setProfilingLevel(1) ```
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