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
|
--source include/count_sessions.inc
call mtr.add_suppression("Table 't1' is marked as crashed and should be repaired");
set @save_table_definition_cache=@@table_definition_cache;
--echo #
--echo # Tests for corrupted MyISAM tables and MyISAMMRG tables with corrupted
--echo # children..
--echo #
--echo # Run with --myisam-recover=force option.
--echo #
--echo # Preparation: we need to make sure that the merge parent
--echo # is never left in the table cache when closed, since this may
--echo # have effect on merge children.
--echo # For that, we set the table cache to minimal size and populate it
--echo # in a concurrent connection.
connect(con1,localhost,root,,test,,);
connection con1;
--echo #
--echo # Minimal values.
--echo #
call mtr.add_suppression("Got an error from thread_id=.*ha_myisam.cc:");
call mtr.add_suppression("MariaDB thread id .*, query id .* localhost.*root Checking table");
call mtr.add_suppression(" '\..test.t1'");
set @save_table_open_cache=@@table_open_cache;
set global table_open_cache=256;
set global table_definition_cache=400;
delimiter |;
create procedure p_create()
begin
declare i int default 1;
set @lock_table_stmt="lock table ";
set @drop_table_stmt="drop table ";
while i < @@global.table_definition_cache + 1 do
set @table_name=concat("t_", i);
set @opt_comma=if(i=1, "", ", ");
set @lock_table_stmt=concat(@lock_table_stmt, @opt_comma,
@table_name, " read");
set @drop_table_stmt=concat(@drop_table_stmt, @opt_comma, @table_name);
set @create_table_stmt=concat("create table if not exists ",
@table_name, " (a int)");
prepare stmt from @create_table_stmt;
execute stmt;
deallocate prepare stmt;
set i= i+1;
end while;
end|
delimiter ;|
call p_create();
drop procedure p_create;
let $lock=`select @lock_table_stmt`;
evalp $lock;
connection default;
--echo #
--echo # We have to disable the ps-protocol, to avoid
--echo # "Prepared statement needs to be re-prepared" errors
--echo # -- table def versions change all the time with full table cache.
--echo #
--disable_ps_protocol
let $MYSQLD_DATADIR=`select @@datadir`;
--echo #
--echo # Prepare a MERGE engine table, that refers to a corrupted
--echo # child.
--echo #
create table t1 (a int, key(a)) engine=myisam;
create table t1_mrg (a int) union (t1) engine=merge;
--echo #
--echo # Create a table with a corrupted index file:
--echo # save an old index file, insert more rows,
--echo # overwrite the new index file with the old one.
--echo #
insert into t1 (a) values (1), (2), (3);
flush table t1;
--copy_file $MYSQLD_DATADIR/test/t1.MYI $MYSQLD_DATADIR/test/t1_copy.MYI
insert into t1 (a) values (4), (5), (6);
flush table t1;
--remove_file $MYSQLD_DATADIR/test/t1.MYI
--copy_file $MYSQLD_DATADIR/test/t1_copy.MYI $MYSQLD_DATADIR/test/t1.MYI
--remove_file $MYSQLD_DATADIR/test/t1_copy.MYI
--echo # check table is needed to mark the table as crashed.
check table t1;
--echo #
--echo # At this point we have a merge table t1_mrg pointing to t1,
--echo # and t1 is corrupted, and will be auto-repaired at open.
--echo # Check that this doesn't lead to memory corruption.
--echo #
--replace_regex /'.*[\/\\]/'/
select * from t1_mrg;
--echo #
--echo # Cleanup
--echo #
drop table t1, t1_mrg;
connection con1;
unlock tables;
prepare stmt from @drop_table_stmt;
execute stmt;
deallocate prepare stmt;
set @@global.table_open_cache=@save_table_open_cache;
disconnect con1;
connection default;
--enable_ps_protocol
set @@global.table_definition_cache=@save_table_definition_cache;
--echo #
--echo # 18075170 - sql node restart required to avoid deadlock after
--echo # restore
--echo #
--echo # Check that auto-repair for MyISAM tables can now happen in the
--echo # middle of transaction, without aborting it.
--enable_prepare_warnings
connection default;
create table t1 (a int, key(a)) engine=myisam;
create table t2 (a int);
insert into t2 values (1);
--echo # Create a table with a corrupted index file:
--echo # save an old index file, insert more rows,
--echo # overwrite the new index file with the old one.
insert into t1 (a) values (1);
flush table t1;
--copy_file $MYSQLD_DATADIR/test/t1.MYI $MYSQLD_DATADIR/test/t1_copy.MYI
insert into t1 (a) values (4);
flush table t1;
--remove_file $MYSQLD_DATADIR/test/t1.MYI
--copy_file $MYSQLD_DATADIR/test/t1_copy.MYI $MYSQLD_DATADIR/test/t1.MYI
--remove_file $MYSQLD_DATADIR/test/t1_copy.MYI
--echo # Check table is needed to mark the table as crashed.
check table t1;
--echo # At this point we have a corrupt t1
start transaction;
select * from t2;
--echo # Without fix select from t1 will break the transaction. After the fix
--echo # transaction should be active and should hold lock on table t2. Alter
--echo # table from con2 will wait only if the transaction is not broken.
--replace_regex /'.*[\/\\]/'/
select * from t1;
connect(con2, localhost, root);
--send ALTER TABLE t2 ADD val INT
connection default;
--echo # With fix we should have alter table waiting for t2 lock here.
let $wait_condition=
SELECT count(*) = 1 FROM information_schema.processlist WHERE state
LIKE "Waiting%" AND info = "ALTER TABLE t2 ADD val INT";
--source include/wait_condition.inc
ROLLBACK;
connection con2;
--reap
connection default;
disconnect con2;
--echo # Cleanup
drop table t1, t2;
# Wait till all disconnects are completed
-- source include/wait_until_count_sessions.inc
|
