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In RBR, There is an inconsistency between slaves and master. When INSERT statement which includes an auto_increment field is executed, Store engine of master will check the value of the auto_increment field. It will generate a sequence number and then replace the value, if its value is NULL or empty. if the field's value is 0, the store engine will do like encountering the NULL values unless NO_AUTO_VALUE_ON_ZERO is set into SQL_MODE. In contrast, if the field's value is 0, Store engine of slave always generates a new sequence number whether or not NO_AUTO_VALUE_ON_ZERO is set into SQL_MODE. SQL MODE of slave sql thread is always consistency with master's. Another variable is related to this bug. If generateing a sequence number is decided by the values of table->auto_increment_field_not_null and SQL_MODE(if includes MODE_NO_AUTO_VALUE_ON_ZERO) The table->auto_increment_is_not_null is FALSE, which causes this bug to appear. ..
243 lines
6.9 KiB
Text
243 lines
6.9 KiB
Text
#
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# Test of auto_increment with offset
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#
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#####################################
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# By: JBM
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# Date: 2006-02-10
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# Change: NDB does not support auto inc
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# in this usage. Currently there is no
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# plan to implment. Skipping test when
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# NDB is default engine.
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#####################################
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-- source include/not_ndb_default.inc
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-- source include/master-slave.inc
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eval create table t1 (a int not null auto_increment,b int, primary key (a)) engine=$engine_type2 auto_increment=3;
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insert into t1 values (NULL,1),(NULL,2),(NULL,3);
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select * from t1;
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sync_slave_with_master;
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select * from t1;
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connection master;
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drop table t1;
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eval create table t1 (a int not null auto_increment,b int, primary key (a)) engine=$engine_type2;
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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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sync_slave_with_master;
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select * from t1;
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connection master;
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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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eval create table t1 (a int not null auto_increment, primary key (a)) engine=$engine_type2;
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# Insert with 2 insert statements to get better testing of logging
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insert into t1 values (NULL),(5),(NULL);
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insert into t1 values (250),(NULL);
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select * from t1;
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insert into t1 values (1000);
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set @@insert_id=400;
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insert into t1 values(NULL),(NULL);
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select * from t1;
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sync_slave_with_master;
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select * from t1;
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connection master;
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drop table t1;
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#
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# Same test with innodb (as the innodb code is a bit different)
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#
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eval create table t1 (a int not null auto_increment, primary key (a)) engine=$engine_type;
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# Insert with 2 insert statements to get better testing of logging
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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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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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sync_slave_with_master;
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select * from t1;
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connection master;
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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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eval create table t1 (a int not null auto_increment, primary key (a)) engine=$engine_type2;
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# Insert with 2 insert statements to get better testing of logging
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insert into t1 values (NULL),(5),(NULL),(NULL);
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insert into t1 values (500),(NULL),(502),(NULL),(NULL);
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select * from t1;
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set @@insert_id=600;
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--error ER_DUP_ENTRY
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insert into t1 values(600),(NULL),(NULL);
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set @@insert_id=600;
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insert ignore into t1 values(600),(NULL),(NULL),(610),(NULL);
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select * from t1;
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sync_slave_with_master;
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select * from t1;
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connection master;
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drop table t1;
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#
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# Test that auto-increment works when slave has rows in the table
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#
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set @@session.auto_increment_increment=10, @@session.auto_increment_offset=1;
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eval create table t1 (a int not null auto_increment, primary key (a)) engine=$engine_type2;
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sync_slave_with_master;
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insert into t1 values(2),(12),(22),(32),(42);
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connection master;
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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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sync_slave_with_master;
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select * from t1;
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# Test for BUG#20524 "auto_increment_* not observed when inserting
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# a too large value". When an autogenerated value was bigger than the
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# maximum possible value of the field, it was truncated to that max
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# possible value, without being "rounded down" to still honour
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# auto_increment_* variables.
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connection master;
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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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--error ER_DUP_ENTRY
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insert into t1 values(null);
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select a, mod(a-@@auto_increment_offset,@@auto_increment_increment) from t1 order by a;
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# same but with a larger value
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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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select a, mod(a-@@auto_increment_offset,@@auto_increment_increment) from t2 order by a;
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# An offset so big that even first value does not fit
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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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select * from t3 order by a;
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sync_slave_with_master;
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select * from t1 order by a;
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select * from t2 order by a;
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select * from t3 order by a;
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connection master;
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drop table t1,t2,t3;
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sync_slave_with_master;
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#
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# BUG#41986 Replication slave does not pick up proper AUTO_INCREMENT value for Innodb tables
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#
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connection master;
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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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sync_slave_with_master;
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show create table t1;
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connection master;
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drop table t1;
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#
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# BUG#45999 Row based replication fails when auto_increment field = 0.
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# Store engine of Slaves auto-generates new sequence numbers for
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# auto_increment fields if the values of them are 0. There is an inconsistency
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# between slave and master. When MODE_NO_AUTO_VALUE_ON_ZERO are masters treat
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#
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source include/master-slave-reset.inc;
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connection master;
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--disable_warnings
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DROP TABLE IF EXISTS t1;
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DROP TABLE IF EXISTS t2;
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--enable_warnings
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eval CREATE TABLE t1 (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=$engine_type;
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eval CREATE TABLE t2 (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY) ENGINE=$engine_type2;
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SET SQL_MODE='';
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# Value of the id will be 1;
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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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SELECT * FROM t2;
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# Value of the id will be 2;
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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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SELECT * FROM t2;
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# Value of the id will be 3. The master treats 0 as NULL or empty because
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# NO_AUTO_VALUE_ON_ZERO is not assign to SQL_MODE.
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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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SELECT * FROM t2;
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SET SQL_MODE=NO_AUTO_VALUE_ON_ZERO;
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# Value of the id will be 0. The master does not treat 0 as NULL or empty
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# because NO_AUTO_VALUE_ON_ZERO has assigned to SQL_MODE.
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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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SELECT * FROM t2;
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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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sync_slave_with_master;
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let $diff_table_1= master:test.t1;
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let $diff_table_2= slave:test.t1;
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source include/diff_tables.inc;
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let $diff_table_1= master:test.t2;
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let $diff_table_2= slave:test.t2;
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source include/diff_tables.inc;
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connection master;
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DROP TABLE t1;
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DROP TABLE t2;
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sync_slave_with_master;
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connection master;
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let $MYSQLD_DATADIR= `SELECT @@DATADIR`;
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--exec $MYSQL_BINLOG $MYSQLD_DATADIR/master-bin.000001 | $MYSQL test
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sync_slave_with_master;
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let $diff_table_1= master:test.t1;
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let $diff_table_2= slave:test.t1;
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source include/diff_tables.inc;
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let $diff_table_1= master:test.t2;
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let $diff_table_2= slave:test.t2;
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source include/diff_tables.inc;
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# End cleanup
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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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sync_slave_with_master;
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