mysql主主复制配置

mysql主主复制配置:

1、修改my.cnf文件
节点1:
[mysqld]
datadir = /u02/mysql
port = 3306
server_id = 1
socket = /var/lib/mysql/mysql.sock
log-error=/u02/mysql/mysqld.log
log-bin = /u02/mysql/master-bin/binlog
relay-log = /u02/mysql/slave-relay/binlog
binlog_format = row
skip-name-resolve
sync_binlog = 1
log_slave_updates = 1

read_only = 0

auto-increment-increment = 2

auto-increment-offset = 1

节点2:
[mysqld]
datadir = /u02/mysql
port = 3306
server_id = 2
socket = /var/lib/mysql/mysql.sock
log-error=/u02/mysql/mysqld.log
log-bin = /u02/mysql/master-bin/binlog
relay-log = /u02/mysql/slave-relay/binlog
binlog_format = row
skip-name-resolve
sync_binlog = 1
log_slave_updates = 1

read_only = 0

auto-increment-increment = 2
auto-increment-offset = 2

[mysql@erptest etc]$ mkdir /u02/mysql/master-bin/binlog
[mysql@erptest etc]$ mkdir /u02/mysql/slave-relay/binlog
创建复制权限用户:
节点1:
mysql> GRANT replication slave ON *.* TO 'repluser'@'10.81.35.3' identified by 'repluser';
mysql>flush privileges;
节点2:
mysql> GRANT replication slave ON *.* TO 'repluser'@'10.81.35.2' identified by 'repluser';
mysql>flush privileges;
mysql>  flush tables with read lock;
Query OK, 0 rows affected (0.00 sec)


mysql> show master status \G
*************************** 1. row ***************************
             File: binlog.000001
         Position: 120
     Binlog_Do_DB: 
 Binlog_Ignore_DB: 
Executed_Gtid_Set: 
1 row in set (0.00 sec)
mysql> unlock tables;
Query OK, 0 rows affected (0.03 sec)
互为master:
节点1:
change master to master_host='10.81.35.3', master_port=3306, master_user='repluser',master_password='repluser', master_log_file='binlog.000001',master_log_pos=120;
节点2:
change master to master_host='10.81.35.2', master_port=3306, master_user='repluser',master_password='repluser', master_log_file='binlog.000001',master_log_pos=120;
mysql> start slave;
Query OK, 0 rows affected (0.02 sec)
mysql> show slave status \G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 10.81.35.3
                  Master_User: repluser
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: binlog.000001
          Read_Master_Log_Pos: 120
               Relay_Log_File: binlog.000002
                Relay_Log_Pos: 280
        Relay_Master_Log_File: binlog.000001
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          Replicate_Ignore_DB: 
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: 
                   Last_Errno: 0
                   Last_Error: 
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 120
              Relay_Log_Space: 444
              Until_Condition: None
               Until_Log_File: 
                Until_Log_Pos: 0
           Master_SSL_Allowed: No
           Master_SSL_CA_File: 
           Master_SSL_CA_Path: 
              Master_SSL_Cert: 
            Master_SSL_Cipher: 
               Master_SSL_Key: 
        Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error: 
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 2
                  Master_UUID: 98b6f1e4-7026-11e7-b381-e8611f1a5e44
             Master_Info_File: /u02/mysql/master.info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
           Master_Retry_Count: 86400
                  Master_Bind: 
      Last_IO_Error_Timestamp: 
     Last_SQL_Error_Timestamp: 
               Master_SSL_Crl: 
           Master_SSL_Crlpath: 
           Retrieved_Gtid_Set: 
            Executed_Gtid_Set: 
                Auto_Position: 0
1 row in set (0.00 sec)
mysql> start slave;
Query OK, 0 rows affected (0.01 sec)
mysql> show slave status \G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 10.81.35.2
                  Master_User: repluser
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: binlog.000001
          Read_Master_Log_Pos: 120
               Relay_Log_File: binlog.000002
                Relay_Log_Pos: 280
        Relay_Master_Log_File: binlog.000001
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          Replicate_Ignore_DB: 
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: 
                   Last_Errno: 0
                   Last_Error: 
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 120
              Relay_Log_Space: 444
              Until_Condition: None
               Until_Log_File: 
                Until_Log_Pos: 0
           Master_SSL_Allowed: No
           Master_SSL_CA_File: 
           Master_SSL_CA_Path: 
              Master_SSL_Cert: 
            Master_SSL_Cipher: 
               Master_SSL_Key: 
        Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error: 
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 1
                  Master_UUID: cd2fab5f-7025-11e7-b37c-e8611f1a5ff8
             Master_Info_File: /u02/mysql/master.info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
           Master_Retry_Count: 86400
                  Master_Bind: 
      Last_IO_Error_Timestamp: 
     Last_SQL_Error_Timestamp: 
               Master_SSL_Crl: 
           Master_SSL_Crlpath: 
           Retrieved_Gtid_Set: 
            Executed_Gtid_Set: 
                Auto_Position: 0
1 row in set (0.00 sec)
测试:
节点1:
mysql> create table test_s_s as select * from mysql.user;
Query OK, 11 rows affected (0.04 sec)
Records: 11  Duplicates: 0  Warnings: 0
节点2:
mysql> select count(*) from test_s_s;
+----------+
| count(*) |
+----------+
|       11 |
+----------+
1 row in set (0.02 sec)

节点2:
mysql> drop table test_s_s;
Query OK, 0 rows affected (0.00 sec)

节点1:
mysql> select count(*) from test_s_s;
ERROR 1146 (42S02): Table 'test.test_s_s' doesn't exist

可以看到已经配置成功,任意节点上的修改都会同步到另外一个节点。



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