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
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
drop table if exists t1,t2;
drop database if exists mysqltest;
create temporary table t1(n int not null primary key);
create table t2(n int);
insert into t2 values(3);
select * from t1;
n
3
flush tables with read lock;
drop table t2;
ERROR HY000: Can't execute the query because you have a conflicting read lock
drop table t2;
unlock tables;
create database mysqltest;
create table mysqltest.t1(n int);
insert into mysqltest.t1 values (23);
flush tables with read lock;
drop database mysqltest;
select * from mysqltest.t1;
n
23
unlock tables;
create table t1 (n int);
flush tables with read lock;
insert into t1 values (345);
select * from t1;
n
345
drop table t1;
create table t1 (c1 int);
lock table t1 write;
flush tables with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
lock table t1 read;
flush tables with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
unlock tables;
flush tables with read lock;
lock table t1 write;
ERROR HY000: Can't execute the query because you have a conflicting read lock
lock table t1 read;
lock table t1 write;
ERROR HY000: Can't execute the query because you have a conflicting read lock
unlock tables;
create table t2 (c1 int);
create table t3 (c1 int);
lock table t1 read, t2 read, t3 write;
flush tables with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
lock table t1 read, t2 read, t3 read;
flush tables with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
unlock tables;
drop table t1, t2, t3;
create table t1 (c1 int);
create table t2 (c1 int);
lock table t1 write;
flush tables with read lock;
insert into t2 values(1);
unlock tables;
drop table t1, t2;
drop table if exists t1, t2;
set session low_priority_updates=1;
create table t1 (a int);
create table t2 (b int);
lock tables t1 write;
flush tables with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
unlock tables;
lock tables t1 read, t2 write;
flush tables with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
unlock tables;
lock tables t1 read;
flush tables with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
unlock tables;
drop table t1, t2;
set session low_priority_updates=default;
select benchmark(200, (select sin(1))) > 1000;
End of 5.0 tests
set @old_general_log= @@general_log;
set @old_read_only= @@read_only;
set global general_log= on;
flush tables with read lock;
flush logs;
unlock tables;
set global read_only=1;
flush logs;
unlock tables;
flush tables with read lock;
flush logs;
unlock tables;
set global general_log= @old_general_log;
set global read_only= @old_read_only;
End of 5.1 tests
#
# Additional test for bug #51136 "Crash in pthread_rwlock_rdlock
# on TEMPORARY + HANDLER + LOCK + SP".
# Also see the main test for this bug in include/handler.inc.
#
drop tables if exists t1, t2;
create table t1 (i int);
create temporary table t2 (j int);
flush tables with read lock;
lock table t2 read;
# This commit should not release any MDL locks.
commit;
# The below statement crashed before the bug fix as it
# has attempted to release global shared metadata lock
# which was already released by commit.
unlock tables;
drop tables t1, t2;
#
# Tests for WL#5000 FLUSH TABLES|TABLE table_list WITH READ LOCK
#
# I. Check the incompatible changes in the grammar.
#
flush tables with read lock, hosts;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' hosts' at line 1
flush privileges, tables;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'tables' at line 1
flush privileges, tables with read lock;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'tables with read lock' at line 1
flush privileges, tables;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'tables' at line 1
flush tables with read lock, tables;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' tables' at line 1
show tables;
Tables_in_test
#
# II. Check the allowed syntax.
#
drop table if exists t1, t2, t3;
create table t1 (a int);
create table t2 (a int);
create table t3 (a int);
lock table t1 read, t2 read;
flush tables with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
unlock tables;
flush tables with read lock;
flush tables t1, t2 with read lock;
flush tables t1, t2 with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
flush tables with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
select * from t1;
a
select * from t2;
a
select * from t3;
ERROR HY000: Table 't3' was not locked with LOCK TABLES
insert into t1 (a) values (1);
ERROR HY000: Table 't1' was locked with a READ lock and can't be updated
insert into t2 (a) values (1);
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
insert into t3 (a) values (1);
ERROR HY000: Table 't3' was not locked with LOCK TABLES
lock table no_such_table read;
ERROR 42S02: Table 'test.no_such_table' doesn't exist
#
# We implicitly left the locked tables
# mode but still have the read lock.
#
insert into t2 (a) values (1);
ERROR HY000: Can't execute the query because you have a conflicting read lock
unlock tables;
insert into t1 (a) values (1);
insert into t2 (a) values (1);
flush table t1, t2 with read lock;
select * from t1;
a
1
select * from t2;
a
1
select * from t3;
ERROR HY000: Table 't3' was not locked with LOCK TABLES
insert into t1 (a) values (2);
ERROR HY000: Table 't1' was locked with a READ lock and can't be updated
insert into t2 (a) values (2);
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
insert into t3 (a) values (2);
ERROR HY000: Table 't3' was not locked with LOCK TABLES
lock table no_such_table read;
ERROR 42S02: Table 'test.no_such_table' doesn't exist
insert into t3 (a) values (2);
#
# III. Concurrent tests.
#
# --> connection default
#
# Check that flush tables <list> with read lock
# does not affect non-locked tables.
#
flush tables t1 with read lock;
# --> connection con1;
select * from t1;
a
1
select * from t2;
a
1
insert into t2 (a) values (3);
# --> connection default;
unlock tables;
# --> connection con1
drop table t1, t2, t3;
#
# Bug#51710 FLUSH TABLES <view> WITH READ LOCK kills the server
#
drop view if exists v1, v2, v3;
drop table if exists t1, v1;
create table t1 (a int);
create view v1 as select 1;
create view v2 as select * from t1;
create view v3 as select * from v2;
flush table v1, v2, v3 with read lock;
ERROR HY000: 'test.v1' is not BASE TABLE
flush table v1 with read lock;
ERROR HY000: 'test.v1' is not BASE TABLE
flush table v2 with read lock;
ERROR HY000: 'test.v2' is not BASE TABLE
flush table v3 with read lock;
ERROR HY000: 'test.v3' is not BASE TABLE
create temporary table v1 (a int);
flush table v1 with read lock;
ERROR HY000: 'test.v1' is not BASE TABLE
drop view v1;
create table v1 (a int);
flush table v1 with read lock;
drop temporary table v1;
unlock tables;
drop view v2, v3;
drop table t1, v1;
|
