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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2 O0 R0 }2 _, q- c( i& d7 Q; |

& y8 a+ q- h, ]: ^1 {. q閬蝝瑁Y SQL 隤, 臭誑靽格 my.cnf 摰, my.cnf 憭詨其誑銝雿蝵:
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( B' o2 Y3 |" ~% W/etc/my.cnf
/ j: r: D6 D2 w( {1 z/etc/mysql/my.cnf
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8 l! n: W4 u# ] my.cnf, [mysqld] 畾菔賢乩誑銝撟曇:$ O5 Z& d$ \) R9 B6 S' I
slow_query_log = 16 j2 Z) {) ]# T
slow_query_log_file = /var/log/mysql-slow.log8 H$ X) |% X% f: @$ a' [  X
long_query_time = 2
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隞乩撟曇交:
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slow_query_log = 1
: `) _9 ^' d$ d; a蝝瑁Y SQL 隤:( t) d9 z6 o) r: D1 u, O

7 I& f7 v+ k  p. c  d. W4 I. i. @* G% Mslow_query_log_file = /var/log/mysql-slow.log) ]% ~& i8 y2 H4 W
閮剖蝝瑼雿蝵桀 /var/log/mysql-slow.log) Q7 D# u0 H: z+ k* Q# u

6 ~6 W% }$ |6 [long_query_time = 2) T  c6 V# [( H: u8 x/ g& r# E
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; P1 D, @; M  R; G$ O2 _& W

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