1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
--source include/not_valgrind.inc
--disable_ps_protocol
SET GLOBAL net_write_timeout = 900;
CREATE TABLE A (
pk INTEGER AUTO_INCREMENT PRIMARY KEY,
fdate DATE
) ENGINE=MyISAM;
--delimiter |
CREATE PROCEDURE p_analyze()
BEGIN
DECLARE attempts INTEGER DEFAULT 100;
wl_loop: WHILE attempts > 0 DO
ANALYZE TABLE A;
SET attempts = attempts - 1;
END WHILE wl_loop;
END |
CREATE FUNCTION rnd3() RETURNS INT
BEGIN
RETURN ROUND(3 * RAND() + 0.5);
END |
--delimiter ;
SET GLOBAL use_stat_tables = PREFERABLY;
--let $trial = 100
--disable_query_log
--disable_result_log
--disable_warnings
while ($trial)
{
--connect (con1,localhost,root,,)
--send CALL p_analyze()
--connect (con2,localhost,root,,)
--send CALL p_analyze()
--let $run = 100
while ($run)
{
--connect (con3,localhost,root,,)
let $query = `SELECT CASE rnd3()
WHEN 1 THEN 'INSERT INTO A (pk) VALUES (NULL)'
WHEN 2 THEN 'DELETE FROM A LIMIT 1'
ELSE 'UPDATE A SET fdate = 2 LIMIT 1' END`;
--eval $query
--disconnect con3
--dec $run
}
--connection con2
--reap
--disconnect con2
--connection con1
--reap
--disconnect con1
--dec $trial
}
--enable_query_log
--enable_result_log
--enable_warnings
# Cleanup
--connection default
DROP TABLE A;
DROP PROCEDURE p_analyze;
DROP FUNCTION rnd3;
SET GLOBAL use_stat_tables = DEFAULT;
SET GLOBAL net_write_timeout = DEFAULT;
|
