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e46d0aead0
An INSERT query log event is preceeded by an INSERT_ID intvar event if the INSERT allocates a new auto_increment value. But if we ignore the INSERT due to --replicate-ignore-table or similar, then the INSERT_ID event is still executed, and the set value of INSERT_ID lingers around in the slave sql thread THD object indefinitely until the next INSERT that happens to need allocation of a new auto_increment value. Normally this does not cause problems as such following INSERT would normally come with its own INSERT_ID event. In this bug, the user had a trigger on the slave which was missing on the master, and this trigger had an INSERT which could be affected. In any case, it seems better to not leave a stray INSERT_ID hanging around in the sql thread THD indefinitely. Note that events can also be skipped from apply_event_and_update_pos(); however it is not possible in that code to skip the INSERT without also skipping the INSERT_ID event.
344 lines
6.4 KiB
Plaintext
344 lines
6.4 KiB
Plaintext
stop slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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reset master;
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reset slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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start slave;
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create table t1 (a int not null auto_increment,b int, primary key (a)) engine=myisam auto_increment=3;
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insert into t1 values (NULL,1),(NULL,2),(NULL,3);
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select * from t1;
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a b
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12 1
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22 2
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32 3
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select * from t1;
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a b
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12 1
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22 2
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32 3
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drop table t1;
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create table t1 (a int not null auto_increment,b int, primary key (a)) engine=myisam;
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insert into t1 values (1,1),(NULL,2),(3,3),(NULL,4);
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delete from t1 where b=4;
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insert into t1 values (NULL,5),(NULL,6);
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select * from t1;
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a b
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1 1
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2 2
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3 3
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22 5
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32 6
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select * from t1;
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a b
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1 1
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2 2
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3 3
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22 5
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32 6
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drop table t1;
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set @@session.auto_increment_increment=100, @@session.auto_increment_offset=10;
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show variables like "auto_inc%";
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Variable_name Value
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auto_increment_increment 100
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auto_increment_offset 10
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create table t1 (a int not null auto_increment, primary key (a)) engine=myisam;
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insert into t1 values (NULL),(5),(NULL);
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insert into t1 values (250),(NULL);
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select * from t1;
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a
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5
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10
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110
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250
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310
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insert into t1 values (1000);
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set @@insert_id=400;
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insert into t1 values(NULL),(NULL);
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select * from t1;
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a
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5
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10
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110
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250
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310
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400
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410
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1000
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select * from t1;
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a
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5
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10
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110
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250
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310
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400
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410
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1000
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drop table t1;
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create table t1 (a int not null auto_increment, primary key (a)) engine=innodb;
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insert into t1 values (NULL),(5),(NULL);
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insert into t1 values (250),(NULL);
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select * from t1;
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a
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5
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10
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110
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250
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310
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insert into t1 values (1000);
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set @@insert_id=400;
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insert into t1 values(NULL),(NULL);
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select * from t1;
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a
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5
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10
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110
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250
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310
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400
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410
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1000
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select * from t1;
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a
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5
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10
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110
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250
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310
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400
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410
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1000
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drop table t1;
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set @@session.auto_increment_increment=1, @@session.auto_increment_offset=1;
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create table t1 (a int not null auto_increment, primary key (a)) engine=myisam;
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insert into t1 values (NULL),(5),(NULL),(NULL);
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insert into t1 values (500),(NULL),(502),(NULL),(NULL);
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select * from t1;
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a
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1
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5
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6
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7
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500
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501
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502
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503
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504
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set @@insert_id=600;
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insert into t1 values(600),(NULL),(NULL);
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ERROR 23000: Duplicate entry '600' for key 'PRIMARY'
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set @@insert_id=600;
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insert ignore into t1 values(600),(NULL),(NULL),(610),(NULL);
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select * from t1;
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a
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1
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5
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6
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7
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500
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501
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502
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503
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504
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600
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610
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611
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select * from t1;
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a
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1
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5
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6
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7
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500
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501
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502
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503
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504
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600
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610
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611
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drop table t1;
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set @@session.auto_increment_increment=10, @@session.auto_increment_offset=1;
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create table t1 (a int not null auto_increment, primary key (a)) engine=myisam;
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insert into t1 values(2),(12),(22),(32),(42);
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insert into t1 values (NULL),(NULL);
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insert into t1 values (3),(NULL),(NULL);
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select * from t1;
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a
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1
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3
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11
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21
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31
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select * from t1;
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a
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1
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2
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3
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11
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12
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21
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22
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31
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32
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42
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drop table t1;
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create table t1 (a tinyint not null auto_increment primary key) engine=myisam;
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insert into t1 values(103);
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set auto_increment_increment=11;
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set auto_increment_offset=4;
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insert into t1 values(null);
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insert into t1 values(null);
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insert into t1 values(null);
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ERROR 23000: Duplicate entry '125' for key 'PRIMARY'
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select a, mod(a-@@auto_increment_offset,@@auto_increment_increment) from t1 order by a;
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a mod(a-@@auto_increment_offset,@@auto_increment_increment)
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103 0
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114 0
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125 0
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create table t2 (a tinyint unsigned not null auto_increment primary key) engine=myisam;
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set auto_increment_increment=10;
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set auto_increment_offset=1;
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set insert_id=1000;
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insert into t2 values(null);
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Warnings:
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Warning 1264 Out of range value for column 'a' at row 1
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select a, mod(a-@@auto_increment_offset,@@auto_increment_increment) from t2 order by a;
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a mod(a-@@auto_increment_offset,@@auto_increment_increment)
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251 0
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create table t3 like t1;
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set auto_increment_increment=1000;
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set auto_increment_offset=700;
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insert into t3 values(null);
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Warnings:
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Warning 1264 Out of range value for column 'a' at row 1
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select * from t3 order by a;
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a
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127
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select * from t1 order by a;
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a
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103
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114
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125
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select * from t2 order by a;
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a
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251
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select * from t3 order by a;
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a
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127
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drop table t1,t2,t3;
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set auto_increment_increment=1;
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set auto_increment_offset=1;
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CREATE TABLE t1 (id MEDIUMINT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=innodb;
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INSERT INTO t1 VALUES (NULL), (NULL), (NULL);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`id` mediumint(9) NOT NULL AUTO_INCREMENT,
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PRIMARY KEY (`id`)
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) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=latin1
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`id` mediumint(9) NOT NULL AUTO_INCREMENT,
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PRIMARY KEY (`id`)
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) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=latin1
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drop table t1;
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stop slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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reset master;
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reset slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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start slave;
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DROP TABLE IF EXISTS t1;
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DROP TABLE IF EXISTS t2;
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CREATE TABLE t1 (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=innodb;
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CREATE TABLE t2 (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=myisam;
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SET SQL_MODE='';
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INSERT INTO t1 VALUES(NULL);
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INSERT INTO t2 VALUES(NULL);
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SELECT * FROM t1;
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id
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1
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SELECT * FROM t2;
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id
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1
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INSERT INTO t1 VALUES();
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INSERT INTO t2 VALUES();
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SELECT * FROM t1;
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id
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1
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2
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SELECT * FROM t2;
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id
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1
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2
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INSERT INTO t1 VALUES(0);
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INSERT INTO t2 VALUES(0);
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SELECT * FROM t1;
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id
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1
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2
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3
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SELECT * FROM t2;
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id
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1
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2
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3
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SET SQL_MODE=NO_AUTO_VALUE_ON_ZERO;
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INSERT INTO t1 VALUES(0);
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INSERT INTO t2 VALUES(0);
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SELECT * FROM t1;
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id
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0
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1
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2
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3
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SELECT * FROM t2;
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id
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0
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1
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2
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3
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INSERT INTO t1 VALUES(4);
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INSERT INTO t2 VALUES(4);
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FLUSH LOGS;
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Comparing tables master:test.t1 and slave:test.t1
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Comparing tables master:test.t2 and slave:test.t2
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DROP TABLE t1;
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DROP TABLE t2;
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Comparing tables master:test.t1 and slave:test.t1
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Comparing tables master:test.t2 and slave:test.t2
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DROP TABLE t1;
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DROP TABLE t2;
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SET SQL_MODE='';
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CREATE TABLE t1(s VARCHAR(10)) ENGINE=myisam;
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CREATE TABLE t_ignored1(id INT AUTO_INCREMENT PRIMARY KEY) ENGINE=myisam;
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CREATE TABLE test.slave_only(id INT AUTO_INCREMENT PRIMARY KEY) ENGINE=myisam;
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INSERT INTO slave_only VALUES(NULL);
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CREATE TRIGGER t1_update AFTER UPDATE ON t1 FOR EACH ROW INSERT INTO slave_only VALUES(NULL);
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INSERT INTO t_ignored1 VALUES(NULL);
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INSERT INTO t1 VALUES('s');
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UPDATE t1 SET s='s1';
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SELECT * FROM t1;
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s
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s1
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CREATE TABLE t_ignored2(id INT AUTO_INCREMENT PRIMARY KEY) ENGINE=myisam;
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STOP SLAVE;
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SET GLOBAL sql_slave_skip_counter = 2;
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START SLAVE;
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INSERT INTO t_ignored2 VALUES(NULL);
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UPDATE t1 SET s='s2';
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SELECT * FROM t1;
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s
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s2
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SHOW TABLES LIKE 't\_ignored_';
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Tables_in_test (t\_ignored_)
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t_ignored2
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SELECT * FROM t_ignored2;
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id
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DROP TABLE slave_only;
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DROP TABLE t1;
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DROP TABLE t_ignored1;
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DROP TABLE t_ignored2;
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