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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) v7 r: A4 o5 v# U0 U

# g3 L1 W( C* p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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/ U( U, U$ V) h2 i/etc/my.cnf
3 B' q3 b3 H3 Z! c# Z0 Q* k4 W/etc/mysql/my.cnf# t. b, j/ B, w9 p2 _0 t" O7 X

$ {( G# X; y0 b* G3 L, \2 K* E& w my.cnf, [mysqld] 畾菔賢乩誑銝撟曇:
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slow_query_log = 1
0 M' ]# ]3 H& O* O3 }slow_query_log_file = /var/log/mysql-slow.log3 m' x2 `# d  A6 w$ i+ T
long_query_time = 2

% y# K* r: m( W+ x; [- c隞乩撟曇交:
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slow_query_log = 1
9 _' ~' [4 j# w0 F蝝瑁Y SQL 隤:
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slow_query_log_file = /var/log/mysql-slow.log
- R; i1 X/ ~2 C0 D2 o: j$ v) Z* J閮剖蝝瑼雿蝵桀 /var/log/mysql-slow.log
+ o+ R5 F( X0 X# Z1 a
  ?/ O( J4 ?8 a( N& h$ along_query_time = 2- _9 l9 A% k. w' o7 L; x/ h3 s4 Y0 `
閮剖 SQL 隤亙瑁頞 2 蝘, 靘踵撠 SQL 隤亙脣3 _2 `" s1 F/ r5 u
6 M) ~  F2 l0 Z# `! m
靽格孵末 my.cnf 敺, 啣 MySQL 靘踹鈭
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