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

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頝唾唳摰璅撅
#
潸” 2019-1-6 16:41:37 | 芰閰脖 撣 |甇摨閬 |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( T# j! N5 G3 ^- W! M

7 K. l3 _/ B( z' I% B1 r閬蝝瑁Y SQL 隤, 臭誑靽格 my.cnf 摰, my.cnf 憭詨其誑銝雿蝵:2 m  j3 ?; x$ y* V$ w
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/etc/my.cnf
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* g5 e9 ]- Y3 i my.cnf, [mysqld] 畾菔賢乩誑銝撟曇:8 `6 `5 v4 k% P3 @+ b; V
slow_query_log = 1
3 A9 g4 u; k& z/ W0 {5 Z$ oslow_query_log_file = /var/log/mysql-slow.log
! ^- A% B0 C0 L5 G/ N. k1 @long_query_time = 2

! f/ Q% T9 `. w" o隞乩撟曇交:
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2 R$ y! C& F# a. l5 \5 l( k) kslow_query_log = 1
, c1 o2 I7 @/ Q0 H蝝瑁Y SQL 隤:# Y2 U, K" D; u6 q" J9 d; E1 P
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slow_query_log_file = /var/log/mysql-slow.log
, M, f" r2 U- ]" i閮剖蝝瑼雿蝵桀 /var/log/mysql-slow.log. Q( I5 d. d) X

" X* v' i1 D( F+ j- {long_query_time = 2
7 f1 Y/ f  y  u% ]3 s9 o, z1 N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
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