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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
-- 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 # Test for bug #37346 "innodb does not detect deadlock between update
--echo # and alter table".
--echo #
--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (c1 int primary key, c2 int, c3 int) engine=InnoDB;
insert into t1 values (1,1,0),(2,2,0),(3,3,0),(4,4,0),(5,5,0);
begin;
--echo # Run statement which acquires X-lock on one of table's rows.
update t1 set c3=c3+1 where c2=3;
--echo #
--echo # Switching to connection 'con37346'.
connect (con37346,localhost,root,,test,,);
connection con37346;
--echo # The below ALTER TABLE statement should wait till transaction
--echo # in connection 'default' is complete and then succeed.
--echo # It should not deadlock or fail with ER_LOCK_DEADLOCK error.
--echo # Sending:
--send alter table t1 add column c4 int;
--echo #
--echo # Switching to connection 'default'.
connection default;
--echo # Wait until the above ALTER TABLE gets blocked because this
--echo # connection holds SW metadata lock on table to be altered.
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table" and info = "alter table t1 add column c4 int";
--source include/wait_condition.inc
--echo # The below statement should succeed. It should not
--echo # deadlock or end with ER_LOCK_DEADLOCK error.
update t1 set c3=c3+1 where c2=4;
--echo # Unblock ALTER TABLE by committing transaction.
commit;
--echo #
--echo # Switching to connection 'con37346'.
connection con37346;
--echo # Reaping ALTER TABLE.
--reap
--echo #
--echo # Switching to connection 'default'.
connection default;
disconnect con37346;
drop table t1;
--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;
--echo #
--echo # Bug#53798 OPTIMIZE TABLE breaks repeatable read
--echo #
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1 (a INT) engine=innodb;
INSERT INTO t1 VALUES (1), (2), (3);
--echo # Connection con1
connect (con1, localhost, root);
START TRANSACTION WITH CONSISTENT SNAPSHOT;
SELECT * FROM t1;
--echo # Connection default
connection default;
--echo # This should block
--echo # Sending:
--send OPTIMIZE TABLE t1
--echo # Connection con1
connection con1;
let $wait_condition=SELECT COUNT(*)=1 FROM information_schema.processlist
WHERE state='Waiting for table' AND info='OPTIMIZE TABLE t1';
--source include/wait_condition.inc
SELECT * FROM t1;
COMMIT;
--echo # Connection default
connection default;
--echo # Reaping OPTIMIZE TABLE t1
--reap
disconnect con1;
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
|