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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7 f9 b2 B/ Q6 {" f/ X

. @* \- j  U- A閬蝝瑁Y SQL 隤, 臭誑靽格 my.cnf 摰, my.cnf 憭詨其誑銝雿蝵:
( M: K2 X5 V, X5 y, ?
- F2 o* u5 d& q$ L- k/etc/my.cnf
( Y# V5 @3 W* v3 L- s* g+ G/etc/mysql/my.cnf
# a7 L3 ?# N  E8 }
1 G# ]  N6 g. C/ {! L my.cnf, [mysqld] 畾菔賢乩誑銝撟曇:
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slow_query_log = 1
; w% I! C) u) q+ }% G  |slow_query_log_file = /var/log/mysql-slow.log7 e0 H; E" k) N
long_query_time = 2

! g7 l: a! i) Z) g隞乩撟曇交:
* Y9 v# l1 l% w$ I: n/ r+ I7 a( Z7 I( j) z) k/ l, z' i
slow_query_log = 1
9 _7 k! _6 C# u2 Y2 @蝝瑁Y SQL 隤:
7 N& t4 S6 M! c: d# K9 X- O8 @) _/ ?
slow_query_log_file = /var/log/mysql-slow.log
/ A* Q2 I- X. q  B9 R閮剖蝝瑼雿蝵桀 /var/log/mysql-slow.log
1 {, H0 ~$ {3 \6 k# A1 i" {- R" f1 }2 F
long_query_time = 27 r) O' d4 m% W( Y( t* B
閮剖 SQL 隤亙瑁頞 2 蝘, 靘踵撠 SQL 隤亙脣' a9 j) J3 y' ]9 c5 v
5 u9 f& |3 T! h
靽格孵末 my.cnf 敺, 啣 MySQL 靘踹鈭' D9 _9 P+ h$ p. H! ^

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