mysql行模式（ROW）主从同步测试及错误修复

测试原由随着PXC的逐步上线。线上数据库的同步方式慢慢由之前的STATEMENT模式转换到了ROW模式。由于同步方式的改变引发了一些同步问题。测试目的一定程度上解决R

测试原由

随着PXC的逐步上线。线上数据库的同步方式慢慢由之前的STATEMENT模式转换到了ROW模式。由于同步方式的改变引发了一些同步问题。

测试目的

一定程度上解决ROW模式下主从同步的问题。作为以后PXC集群down掉，人工修复的操作文档。

测试环境

masterold02:7301

masterold03:7302

skavetest178:7303

主库操作

vim my.cnf 加入下一面一句

binlog_format=ROW 数据库binlog使用ROW模式同步

分别赋予丛库同步用户的权限

grant all on *.* to okooo_rep@'192.168.%.%' identified by 'Bjfcmlc@Mhxzkhl';

flush privileges;

测试开始

测试基础同步功能

?.让test178作为从去同步old02的数据

CHANGE MASTER TO MASTER_HOST='192.168.8.72',MASTER_USER='okooo_rep',MASTER_PASSWORD='Bjfcmlc@Mhxzkhl',

MASTER_PORT=7301,MASTER_LOG_FILE='logbin.000001',MASTER_LOG_POS=4;

? 查看主从状态，我们看到很快test178就可以和old02保持一致了。

mysql> show slave status\G

*************************** 1. row ***************************

Slave_IO_State: Waiting for master to send event

Master_Host: 192.168.8.72

Master_User: okooo_rep

Master_Port: 7301

Connect_Retry: 60

Master_Log_File: logbin.000006

Read_Master_Log_Pos: 332

Relay_Log_File: relay.000007

Relay_Log_Pos: 475

Relay_Master_Log_File: logbin.000006

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

? 让test178作为从去同步old03的数据，我们看到很快test178也和old03保持一致了。

stop slave;

CHANGE MASTER TO MASTER_HOST='192.168.8.73',MASTER_USER='okooo_rep',MASTER_PASSWORD='Bjfcmlc@Mhxzkhl',MASTER_PORT=7302,MASTER_LOG_FILE='logbin.000001',MASTER_LOG_POS=4;

start slave;

mysql> show slave status\G

*************************** 1. row ***************************

Slave_IO_State: Waiting for master to send event

Master_Host: 192.168.8.73

Master_User: okooo_rep

Master_Port: 7302

Connect_Retry: 60

Master_Log_File: logbin.000005

Read_Master_Log_Pos: 332

Relay_Log_File: relay.000006

Relay_Log_Pos: 475

Relay_Master_Log_File: logbin.000005

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

总结：基础同步测试完成，说明在数据库新搭建结束的时候数据库中数据一致的情况下，test178可以正常的和old02和old03中任意主库同步数据。

写入测试

? 分别在old02，old03上建立新的数据库和表

create database row_slave;

CREATE TABLE `row_test` (

`id` int(10) unsigned NOT NULL,

`hostname` varchar(20) NOT NULL default '',

`create_time` datetime NOT NULL default '0000-00-00 00:00:00',

`update_time` datetime NOT NULL default '0000-00-00 00:00:00',

PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=1 ;

? old02写入数据

insert into row_test values(1,'old02','2013-12-11 00:00:00','2013-12-11 00:00:00');

insert into row_test values(2,'old02','2013-12-11 00:00:00','2013-12-11 00:00:00');

insert into row_test values(3,'old03','2013-12-11 01:00:00','2013-12-11 01:00:00');

insert into row_test values(4,'old03','2013-12-11 01:00:00','2013-12-11 01:00:00');

?查看old02，old03，test178 皆可以查出来

mysql> select * from row_test;

+----+----------+---------------------+---------------------+

| id | hostname | create_time | update_time |

+----+----------+---------------------+---------------------+

| 1 | old02 | 2013-12-11 00:00:00 | 2013-12-11 00:00:00 |

| 2 | old02 | 2013-12-11 00:00:00 | 2013-12-11 00:00:00 |

| 3 | old03 | 2013-12-11 01:00:00 | 2013-12-11 01:00:00 |

| 4 | old03 | 2013-12-11 01:00:00 | 2013-12-11 01:00:00 |

+----+----------+---------------------+---------------------+

?old03写入数据，此时old03（主）和test178（丛）在同步

insert into row_test values(5,'old03','2013-12-11 02:00:00','2013-12-11 02:00:00');

insert into row_test values(6,'old03','2013-12-11 02:00:00','2013-12-11 02:00:00');

?查看old03，test178 皆可查出。此时test178和 old02数据已经不一致了，丛库比old02多出2条数据id=5,6。

+----+----------+---------------------+---------------------+

| id | hostname | create_time | update_time |

+----+----------+---------------------+---------------------+

| 1 | old02 | 2013-12-11 00:00:00 | 2013-12-11 00:00:00 |

| 2 | old02 | 2013-12-11 00:00:00 | 2013-12-11 00:00:00 |

| 3 | old03 | 2013-12-11 01:00:00 | 2013-12-11 01:00:00 |

| 4 | old03 | 2013-12-11 01:00:00 | 2013-12-11 01:00:00 |

| 5 | old03 | 2013-12-11 02:00:00 | 2013-12-11 02:00:00 |

| 6 | old03 | 2013-12-11 02:00:00 | 2013-12-11 02:00:00 |

+----+----------+---------------------+---------------------+

?old02写入数据 此时主从库还是test178和old03在同步，和old02没有关系

insert into row_test values(7,'old02','2013-12-11 03:00:00','2013-12-11 03:00:00');

insert into row_test values(8,'old02','2013-12-11 03:00:00','2013-12-11 03:00:00');

?查看 old02的binlog 来找到插入id =7,8的 pos点

cd /home/okooo/apps/tmp_slave01/logs

../bin/mysqlbinlog --no-defaults --base64-output=decode-rows -v -v ./logbin.000007

# at 1399

#131211 11:36:42 server id 1287301 end_log_pos 1472 Query thread_id=5 exec_time=0 error_code=0

SET TIMESTAMP=1386733002/*!*/;

BEGIN

/*!*/;

# at 1472

# at 1529

#131211 11:36:42 server id 1287301 end_log_pos 1529 Table_map: `row_slave`.`row_test` mapped to number 33

#131211 11:36:42 server id 1287301 end_log_pos 1585 Write_rows: table id 33 flags: STMT_END_F

### INSERT INTO row_slave.row_test

### SET

### @1=7 /* INT meta=0 nullable=0 is_null=0 */

### @2='old02' /* VARSTRING(20) meta=20 nullable=0 is_null=0 */

### @3=2013-12-11 03:00:00 /* DATETIME meta=0 nullable=0 is_null=0 */

### @4=2013-12-11 03:00:00 /* DATETIME meta=0 nullable=0 is_null=0 */

# at 1585

#131211 11:36:42 server id 1287301 end_log_pos 1612 Xid = 40

COMMIT/*!*/;

# at 1612

#131211 11:36:43 server id 1287301 end_log_pos 1685 Query thread_id=5 exec_time=0 error_code=0

SET TIMESTAMP=1386733003/*!*/;

BEGIN

/*!*/;

# at 1685

# at 1742

#131211 11:36:43 server id 1287301 end_log_pos 1742 Table_map: `row_slave`.`row_test` mapped to number 33

#131211 11:36:43 server id 1287301 end_log_pos 1798 Write_rows: table id 33 flags: STMT_END_F

### INSERT INTO row_slave.row_test

### SET

### @1=8 /* INT meta=0 nullable=0 is_null=0 */

### @2='old02' /* VARSTRING(20) meta=20 nullable=0 is_null=0 */

### @3=2013-12-11 03:00:00 /* DATETIME meta=0 nullable=0 is_null=0 */

### @4=2013-12-11 03:00:00 /* DATETIME meta=0 nullable=0 is_null=0 */

# at 1798

#131211 11:36:43 server id 1287301 end_log_pos 1825 Xid = 41

COMMIT/*!*/;

DELIMITER ;

# End of log file

?改变test178的同步点和old02同步

stop slave;

CHANGE MASTER TO MASTER_HOST='192.168.8.72',MASTER_USER='okooo_rep',MASTER_PASSWORD='Bjfcmlc@Mhxzkhl',MASTER_PORT=7301,MASTER_LOG_FILE='logbin.000007',MASTER_LOG_POS=1399;

start slave;

show slave status\G