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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
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" Y  V" t% [! j5 F: ~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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: g2 R; }; h/ u' x" t" v/etc/my.cnf
( O$ o/ F# i6 D, w& a5 @% x/etc/mysql/my.cnf0 x8 q7 Z1 U" h/ n

8 P( `5 G3 [# D7 b" t" f my.cnf, [mysqld] 畾菔賢乩誑銝撟曇:: {7 C4 `5 F, }5 [9 x
slow_query_log = 1
  x- l, ]0 n9 I+ b: m3 ?; X1 Lslow_query_log_file = /var/log/mysql-slow.log
/ N7 _3 A: ]6 t% Q5 M3 x3 l* ]long_query_time = 2
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隞乩撟曇交:
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( k6 Y* Q: d) [4 y+ n: a9 _slow_query_log = 16 H& |; C" a1 o2 o* p
蝝瑁Y SQL 隤:" t0 Z5 E! M; ?( }% S1 {7 w) p

/ a7 v5 i$ s% i8 Yslow_query_log_file = /var/log/mysql-slow.log
% B. `) f- \. z; P閮剖蝝瑼雿蝵桀 /var/log/mysql-slow.log
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long_query_time = 2: ?# Y- T  f5 e4 F! d4 K6 W
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* f0 a5 Q: N3 C) T; @) d/ H" b: N
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