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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
SET DEBUG_SYNC = 'RESET';
DROP TABLE IF EXISTS t1, t2, t3;
DROP FUNCTION IF EXISTS MY_KILL;
CREATE FUNCTION MY_KILL(tid INT) RETURNS INT
BEGIN
DECLARE CONTINUE HANDLER FOR SQLEXCEPTION BEGIN END;
KILL tid;
RETURN (SELECT COUNT(*) = 0 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE ID = tid);
END|
SET DEBUG_SYNC= 'thread_end SIGNAL con1_end';
SET DEBUG_SYNC= 'before_do_command_net_read SIGNAL con1_read';
SET DEBUG_SYNC='now WAIT_FOR con1_read';
SET DEBUG_SYNC= 'now WAIT_FOR con1_end';
SET DEBUG_SYNC = 'RESET';
SELECT 1;
Got one of the listed errors
SELECT 1;
1
1
SELECT @id != CONNECTION_ID();
@id != CONNECTION_ID()
1
SELECT 4;
4
4
KILL (SELECT COUNT(*) FROM mysql.user);
ERROR 42000: This version of MySQL doesn't yet support 'Usage of subqueries or stored function calls as part of this statement'
SET DEBUG_SYNC= 'thread_end SIGNAL con1_end';
SET DEBUG_SYNC= 'before_do_command_net_read SIGNAL con1_read WAIT_FOR kill';
SET DEBUG_SYNC= 'now WAIT_FOR con1_read';
SET DEBUG_SYNC= 'now WAIT_FOR con1_end';
SET DEBUG_SYNC = 'RESET';
SELECT 1;
Got one of the listed errors
SELECT 1;
1
1
SELECT @id != CONNECTION_ID();
@id != CONNECTION_ID()
1
SELECT 4;
4
4
CREATE TABLE t1 (id INT PRIMARY KEY AUTO_INCREMENT);
CREATE TABLE t2 (id INT UNSIGNED NOT NULL);
INSERT INTO t1 VALUES
(0),(0),(0),(0),(0),(0),(0),(0), (0),(0),(0),(0),(0),(0),(0),(0),
(0),(0),(0),(0),(0),(0),(0),(0), (0),(0),(0),(0),(0),(0),(0),(0),
(0),(0),(0),(0),(0),(0),(0),(0), (0),(0),(0),(0),(0),(0),(0),(0),
(0),(0),(0),(0),(0),(0),(0),(0), (0),(0),(0),(0),(0),(0),(0),(0);
INSERT t1 SELECT 0 FROM t1 AS a1, t1 AS a2 LIMIT 4032;
INSERT INTO t2 SELECT id FROM t1;
SET DEBUG_SYNC= 'thread_end SIGNAL con1_end';
SET DEBUG_SYNC= 'before_acos_function SIGNAL in_sync';
SELECT id FROM t1 WHERE id IN
(SELECT /*+ NO_BNL(a,b,c,d) */ DISTINCT a.id FROM t2 a, t2 b, t2 c, t2 d
GROUP BY ACOS(1/a.id), b.id, c.id, d.id
HAVING a.id BETWEEN 10 AND 20);
SET DEBUG_SYNC= 'now WAIT_FOR in_sync';
KILL @id;
SET DEBUG_SYNC= 'now WAIT_FOR con1_end';
Got one of the listed errors
SELECT 1;
1
1
SET DEBUG_SYNC = 'RESET';
DROP TABLE t1, t2;
SET DEBUG_SYNC= 'before_acos_function SIGNAL in_sync WAIT_FOR kill';
SELECT ACOS(0);
SET DEBUG_SYNC= 'now WAIT_FOR in_sync';
KILL QUERY @id;
ACOS(0)
1.5707963267948966
SELECT 1;
1
1
SELECT @id = CONNECTION_ID();
@id = CONNECTION_ID()
1
SET DEBUG_SYNC = 'RESET';
SET DEBUG_SYNC= 'before_join_optimize SIGNAL in_sync WAIT_FOR continue';
PREPARE stmt FROM 'EXPLAIN SELECT * FROM t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19,t20,t21,t22,t23,t24,t25,t26,t27,t28,t29,t30,t31,t32,t33,t34,t35,t36,t37,t38,t39,t40 WHERE a1=a2 AND a2=a3 AND a3=a4 AND a4=a5 AND a5=a6 AND a6=a7 AND a7=a8 AND a8=a9 AND a9=a10 AND a10=a11 AND a11=a12 AND a12=a13 AND a13=a14 AND a14=a15 AND a15=a16 AND a16=a17 AND a17=a18 AND a18=a19 AND a19=a20 AND a20=a21 AND a21=a22 AND a22=a23 AND a23=a24 AND a24=a25 AND a25=a26 AND a26=a27 AND a27=a28 AND a28=a29 AND a29=a30 AND a30=a31 AND a31=a32 AND a32=a33 AND a33=a34 AND a34=a35 AND a35=a36 AND a36=a37 AND a37=a38 AND a38=a39 AND a39=a40 ';
EXECUTE stmt;
SET DEBUG_SYNC= 'now WAIT_FOR in_sync';
KILL QUERY @id;
SET DEBUG_SYNC= 'now SIGNAL continue';
ERROR 70100: Query execution was interrupted
SET DEBUG_SYNC = 'RESET';
#
# Bug#19723: kill of active connection yields different error code
# depending on platform.
#
# Connection: con1.
SET DEBUG_SYNC= 'thread_end SIGNAL con1_end';
KILL @id;
ERROR 70100: Query execution was interrupted
SET DEBUG_SYNC= 'now WAIT_FOR con1_end';
# ER_SERVER_SHUTDOWN, CR_SERVER_GONE_ERROR, CR_SERVER_LOST,
# depending on the timing of close of the connection socket
SELECT 1;
Got one of the listed errors
SELECT 1;
1
1
SELECT @id != CONNECTION_ID();
@id != CONNECTION_ID()
1
SET DEBUG_SYNC = 'RESET';
SET DEBUG_SYNC = 'RESET';
DROP FUNCTION MY_KILL;
#
# Bug#12661349 assert in protocol::end_statement
#
# Note: This test case should be run with --ps-protocol
CREATE TABLE t1 (col1 INT);
connect con1, localhost, root;
SET DEBUG_SYNC= 'before_execute_sql_command SIGNAL waiting WAIT_FOR killed';
SELECT * FROM t1;
connection default;
SET DEBUG_SYNC= 'now WAIT_FOR waiting';
KILL QUERY <con1_id>;
SET DEBUG_SYNC= 'now SIGNAL killed';
connection con1;
ERROR 70100: Query execution was interrupted
disconnect con1;
connection default;
DROP TABLE t1;
SET DEBUG_SYNC= 'RESET';
|
