AB ABB ABC “ABCDEFG”

master:

vim /etc/my.cnf

mysqld

server_id = 1

 

 

slave:

vim /etc/my.cnf

mysqld

server_id = 2

 

master:

vim /etc/my.cnf

mysqld

server_id = 1

log-bin=binlog

log-bin-index=binlog.index

 

 

 

slave:

vim /etc/my.cnf

mysqld

server_id = 2

relay_log = /var/lib/mysql/mysql-relay-bin

relay_log_index=/var/lib/mysql/mysql-relay-bin.index

 

 

 

master && slave

service mysqld restart

 

 

 

master:

GRANT replication slave ON *.* TO 'boxiang'@'%' identified by '123'; 

 

flush privileges;

 

 

 

 

slave:

cd /var/lib/mysql

rm -fr *

service mysqld restart

 

 

master 

mysqldump -A -x > /tmp/aaa.sql -A 所有庫 -x鎖表

scp /tmp/full.sql [email protected]:/tmp/

 

 

slave:

mysql < /tmp/aaa.sql

 

master:

flush tables with read lock;

show master status; 查看主狀態 用的是003 at366

 

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

| File          | Position | Binlog_Do_DB | Binlog_Ignore_DB |

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

| binlog.000003 |      366 |              |                  | 

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

unlock tables;

 

 

 

 

slave:

change master to master_host='192.168.0.100', master_port=3306, master_user='boxiang',

master_password='123',master_log_file='binlog.000003',master_log_pos=366;

start slave;

 

 

 

slave:

show slave status \G

 

                Master_Host: 192.168.0.100

                Master_User: boxiang

                Master_Port: 3306

              Connect_Retry: 60

            Master_Log_File: binlog.000003

        Read_Master_Log_Pos: 366

             Relay_Log_File: mysql-relay-bin.000002

              Relay_Log_Pos: 232

      Relay_Master_Log_File: binlog.000003

           Slave_IO_Running: Yes

          Slave_SQL_Running: Yes

 

 

在此基礎上

建立2B

 

2B上輸入

vim /etc/my.cnf

server_id = 3
relay_log = /var/lib/mysql/mysql-relay-bin
relay_log_index=/var/lib/mysql/mysql-relay-bin.index

 

重啓mysql

 

change master to master_host='192.168.0.100', master_port=3306, master_user='boxiang',master_password='123',master_log_file='binlog.000003',master_log_pos=366;

 

開啓

start slave;

 

 

 

查看

show slave status\G

 

 

Slave_IO_State: Waiting for master to send event

完成

 

ABC複製

master1（A）

vim /etc/my.cnf
server-id = 1
log-bin=binlog
log-bin-index=binlog.index
log_slave_updates = 1
auto_increment_increment=2
auto_increment_offset=1

 

mater2B

server-id = 2

log-bin=binlog

log-bin-index=binlog.index

log_slave_updates = 1

auto_increment_increment=2

auto_increment_offset=2

 

進入mysql

 

GRANT replication slave ON *.* TO 'lbx'@'%' identified by '123'; 

 

 flush privileges;

slave 3C

vim /etc/my.cnf

user=mysql

server_id = 3

relay_log = /var/lib/mysql/mysql-relay-bin

relay_log_index=/var/lib/mysql/mysql-relay-bin.index

清空/var/lib/mysql/下的所有目錄

重啓mysql服務

mater2B

mysql> show master status;

ERROR 2006 (HY000): MySQL server has gone away

No connection. Trying to reconnect...

Connection id:    4

Current database: *** NONE ***

 

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

| File          | Position | Binlog_Do_DB | Binlog_Ignore_DB |

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

| binlog.000001 |       98 |              |                  | 

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

1 row in set (0.01 sec)

slave （C）

進入mysqsl

change master to master_host='192.168.0.200', master_port=3306, master_user='lbx', master_password='123', master_log_file='binlog.000001',master_log_pos=68;

flush privileges;

mysql> show slave status\G

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

             Slave_IO_State: Waiting for master to send event

                Master_Host: 192.168.0.200

                Master_User: lbx

                Master_Port: 3306

              Connect_Retry: 60

            Master_Log_File: binlog.000001

        Read_Master_Log_Pos: 68

             Relay_Log_File: mysql-relay-bin.000002

              Relay_Log_Pos: 313

      Relay_Master_Log_File: binlog.000001

           Slave_IO_Running: Yes

          Slave_SQL_Running: Yes

在master1（A）上新建數據庫BBB

在slave上查看

mysql> show databases;

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

| Database           |

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

| information_schema | 

| BBB                | 

| mysql              | 

| test               | 

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

4 rows in set (0.00 sec)

 

 

完成

                Master_Host: 192.168.0.100

                Master_User: boxiang

                Master_Port: 3306

              Connect_Retry: 60

            Master_Log_File: binlog.000003

        Read_Master_Log_Pos: 366

             Relay_Log_File: mysql-relay-bin.000002

              Relay_Log_Pos: 232

      Relay_Master_Log_File: binlog.000005

           Slave_IO_Running: Yes

          Slave_SQL_Running: Yes