122 lines
2.8 KiB
Plaintext
122 lines
2.8 KiB
Plaintext
SET @global_slow_query_log = @@global.slow_query_log;
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SET @global_log_output = @@global.log_output;
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SET @@session.long_query_time=1;
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SET @@global.log_output = 'TABLE';
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'----When slow_query_log = OFF----'
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SET @@global.slow_query_log = OFF;
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TRUNCATE mysql.slow_log;
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SELECT sleep(2);
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sleep(2)
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0
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SELECT count(*) FROM mysql.slow_log;
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count(*)
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0
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'----When slow_query_log = ON-----'
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SET @@global.slow_query_log = ON;
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TRUNCATE mysql.slow_log;
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SELECT sleep(2) AS bug53630;
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bug53630
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0
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SELECT count(*) > 0 FROM mysql.slow_log WHERE sql_text LIKE '% bug53630';
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count(*) > 0
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1
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SELECT thread_id - connection_id() FROM mysql.slow_log
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WHERE sql_text LIKE '% bug53630'
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ORDER BY start_time DESC LIMIT 1;
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thread_id - connection_id()
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0
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'Bug#47905 stored procedures not logged correctly to slow query log'
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TRUNCATE mysql.slow_log;
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CREATE PROCEDURE p_test()
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BEGIN
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select sleep(2);
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select 1;
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END//
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CALL p_test();
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sleep(2)
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0
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1
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1
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SELECT count(*) > 0 FROM mysql.slow_log;
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count(*) > 0
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1
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DROP PROCEDURE p_test;
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Bug53191 Lock_time in slow log is negative when logging stored routines
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TRUNCATE mysql.slow_log;
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SET sql_mode = 'NO_ENGINE_SUBSTITUTION';
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CREATE TABLE t1 (c0 INT PRIMARY KEY AUTO_INCREMENT, c1 TIMESTAMP, c2 TIMESTAMP);
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CREATE FUNCTION f_slow_now() RETURNS TIMESTAMP
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BEGIN
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DO SLEEP(2);
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RETURN NOW();
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END//
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CREATE FUNCTION f_slow_current_time() RETURNS TIME
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BEGIN
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DO SLEEP(2);
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RETURN CURRENT_TIME();
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END
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//
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INSERT INTO t1 (c1,c2) VALUES (now(), f_slow_now())//
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CREATE TRIGGER tf_before BEFORE INSERT ON t1
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FOR EACH ROW BEGIN
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SET new.c2 = f_slow_now();
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END//
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CREATE PROCEDURE p1()
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BEGIN
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INSERT INTO t1 (c1,c2) values (now(),now());
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DO SLEEP(2);
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INSERT INTO t1 (c1,c2) values (now(),now());
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end//
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INSERT INTO t1 (c1,c2) VALUES (now(), now());
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CALL p1();
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SELECT c1-c2 FROM t1;
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c1-c2
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0
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0
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0
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0
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*** There shouldn't less than 1 s difference between each row
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SELECT t1.c1-self.c1 > 1 FROM t1, t1 as self WHERE t1.c0=self.c0+1 ORDER BY t1.c0;
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t1.c1-self.c1 > 1
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1
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1
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1
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DROP TRIGGER tf_before;
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DROP FUNCTION f_slow_now;
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DROP FUNCTION f_slow_current_time;
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DROP TABLE t1;
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DROP TABLE IF EXISTS t1;
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Warnings:
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Note 1051 Unknown table 'test.t1'
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CREATE TABLE t1(c1 INT) ENGINE=MyISAM;
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DROP PROCEDURE IF EXISTS p1;
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CREATE PROCEDURE p1()
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BEGIN
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INSERT INTO t1 VALUES (1);
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SELECT COUNT(*) FROM t1 WHERE c1= 1;
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UPDATE t1 SET c1=c1*2;
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END|
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Connection 2
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LOCK TABLE t1 WRITE;
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Back to default connection
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CALL p1();
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Wait three seconds and unlock the table
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UNLOCK TABLES;
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COUNT(*)
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1
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Slow log:
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**** 1 == we have slow log entries
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SELECT count(*) > 0 FROM mysql.slow_log;
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count(*) > 0
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1
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**** 0 == None of the entries have a lock time greater than 10 s
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SELECT count(*) FROM mysql.slow_log WHERE lock_time > 10;
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count(*)
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0
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DROP TABLE t1;
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DROP PROCEDURE p1;
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SET sql_mode = default;
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SET @@global.log_output = @global_log_output;
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SET @global.slow_query_log = @global_slow_query_log;
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TRUNCATE TABLE mysql.slow_log;
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