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[mysql] MySQL slow query log, 脣瑁Y SQL 隤

[銴鋆賡包
頝唾唳摰璅撅
璅銝
潸” 2019-1-6 16:41:37 | 芰閰脖 撣 |摨閬 |梯璅∪
潸死蝔撘瑁敺, 嗡葉銝閬瑼X亦唳寞航摨怒MySQL 臭誑撠瑁 SQL 隤亙券函銝靘, 臭誑芣臬瑁Y SQL 隤亦銝靘, 璅撠 MySQL 隤亦 Debug 撠梯擛敺憭鈭$ e" x- ?/ |& X+ m
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閬蝝瑁Y SQL 隤, 臭誑靽格 my.cnf 摰, my.cnf 憭詨其誑銝雿蝵:% f( g- n4 x( [. B4 P/ b# z# I6 m
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/etc/my.cnf
2 L: C9 Q6 d2 h5 w% }, X. R  U/etc/mysql/my.cnf
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my.cnf, [mysqld] 畾菔賢乩誑銝撟曇:7 Q; c& T( K0 r0 D) o/ @
slow_query_log = 1
8 E8 w" t" n4 w) q' E+ h6 ]slow_query_log_file = /var/log/mysql-slow.log
0 i/ u6 L, r0 r+ C4 o; |( ~- ]long_query_time = 2
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隞乩撟曇交:
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slow_query_log = 1' n+ l2 t: Z, V) N
蝝瑁Y SQL 隤:/ h* X9 z9 g5 t- I

9 \- T1 a+ p! F! Q3 |slow_query_log_file = /var/log/mysql-slow.log" U# ^& B2 P$ c, d" e$ s
閮剖蝝瑼雿蝵桀 /var/log/mysql-slow.log
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7 n' a. K. w: S! @: v9 _long_query_time = 2& ]* ~" ^( M, b# A( @
閮剖 SQL 隤亙瑁頞 2 蝘, 靘踵撠 SQL 隤亙脣
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靽格孵末 my.cnf 敺, 啣 MySQL 靘踹鈭+ a9 h* M+ W/ G

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