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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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# \7 l4 j  P$ m2 g5 Z閬蝝瑁Y SQL 隤, 臭誑靽格 my.cnf 摰, my.cnf 憭詨其誑銝雿蝵:% j# w2 F, ]# ^$ W- x0 o3 L

8 f+ k; A, r- [/etc/my.cnf. t$ A3 ?" q6 O, W' ]! u& M2 \" B
/etc/mysql/my.cnf
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my.cnf, [mysqld] 畾菔賢乩誑銝撟曇:4 o6 X' ^. h/ w
slow_query_log = 1
: v0 |1 d" [+ H, i' zslow_query_log_file = /var/log/mysql-slow.log
$ `4 f! p; ]' ^/ wlong_query_time = 2

/ ^+ D) s5 J# V  [隞乩撟曇交:
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6 V- F3 Q6 X7 l, O' L0 N3 u, ^9 Bslow_query_log = 1
/ I0 Y1 J3 T9 F# b$ ^& n蝝瑁Y SQL 隤:
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slow_query_log_file = /var/log/mysql-slow.log
! B) s7 k5 M" H: n) t, _閮剖蝝瑼雿蝵桀 /var/log/mysql-slow.log* ?* U5 b2 U, l% {, j- K# P
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long_query_time = 26 j6 y1 o& r$ b# o
閮剖 SQL 隤亙瑁頞 2 蝘, 靘踵撠 SQL 隤亙脣- u5 T3 h, m$ h, G# }" o( _6 u- F3 C
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靽格孵末 my.cnf 敺, 啣 MySQL 靘踹鈭
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