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
|
-- source include/have_innodb.inc
# Save the initial number of concurrent sessions.
--source include/count_sessions.inc
--echo #
--echo # Bug #22876 Four-way deadlock
--echo #
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
connect (con1,localhost,root,,);
connect (con2,localhost,root,,);
connect (con3,localhost,root,,);
--echo # Connection 1
connection con1;
set @@autocommit=0;
CREATE TABLE t1(s1 INT UNIQUE) ENGINE=innodb;
INSERT INTO t1 VALUES (1);
--echo # Connection 2
connection con2;
set @@autocommit=0;
INSERT INTO t1 VALUES (2);
--send INSERT INTO t1 VALUES (1)
--echo # Connection 3
connection con3;
set @@autocommit=0;
--send DROP TABLE t1
--echo # Connection 1
connection con1;
let $wait_condition=
SELECT COUNT(*) = 1 FROM information_schema.processlist
WHERE info = "INSERT INTO t1 VALUES (1)" and
state = "update";
--source include/wait_condition.inc
let $wait_condition=
SELECT COUNT(*) = 1 FROM information_schema.processlist
WHERE info = "DROP TABLE t1" and
state = "Waiting for table";
--source include/wait_condition.inc
--echo # Connection 1 is now holding the lock.
--echo # Issuing insert from connection 1 while connection 2&3
--echo # is waiting for the lock should give a deadlock error.
--error ER_LOCK_DEADLOCK
INSERT INTO t1 VALUES (2);
--echo # Cleanup
connection con2;
--reap
commit;
set @@autocommit=1;
connection con1;
commit;
set @@autocommit=1;
connection con3;
--reap
set @@autocommit=1;
connection default;
disconnect con1;
disconnect con3;
--echo #
--echo # Bug #42147 Concurrent DML and LOCK TABLE ... READ for InnoDB
--echo # table cause warnings in errlog
--echo #
--echo #
--echo # Note that this test for now relies on a global suppression of
--echo # the warning "Found lock of type 6 that is write and read locked"
--echo # This suppression rule can be removed once Bug#42147 is properly
--echo # fixed. See bug page for more info.
--echo #
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1 (i INT) engine= innodb;
--echo # Connection 2
--echo # Get user-level lock
connection con2;
SELECT get_lock('bug42147_lock', 60);
--echo # Connection 1
connection default;
--send INSERT INTO t1 SELECT get_lock('bug42147_lock', 60)
--echo # Connection 2
connection con2;
let $wait_condition=
SELECT COUNT(*) > 0 FROM information_schema.processlist
WHERE state = 'User lock'
AND info = 'INSERT INTO t1 SELECT get_lock(\'bug42147_lock\', 60)';
--source include/wait_condition.inc
LOCK TABLES t1 READ;
SELECT release_lock('bug42147_lock');
--echo # Connection 1
connection default;
--reap
--echo # Connection 2
connection con2;
UNLOCK TABLES;
--echo # Connection 1
connection default;
disconnect con2;
DROP TABLE t1;
# Check that all connections opened by test cases in this file are really
# gone so execution of other tests won't be affected by their presence.
--source include/wait_until_count_sessions.inc
|
