MySQL Replication2015/03/22 |
|
Configure MySQL Replication settings. This configuration is general Master-Slave settings.
|
|
| [1] | Change settings and create a user for replication on MySQL Matser Host. |
|
[root@www ~]#
vi /etc/my.cnf
[mysqld]
[root@www ~]# # add follows in [mysqld] section : get binary logs log-bin=mysql-bin # define uniq server ID server-id=101 /etc/rc.d/init.d/mysqld restart Stopping mysqld: [ OK ] Starting mysqld: [ OK ][root@www ~]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.1.73-log Source distribution Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. # create user (set any password for 'password' section) mysql> grant replication slave on *.* to replica@'%' identified by 'password'; Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) exit Bye |
| [2] | |
| [3] | If IPTables is running on Master Host, allow ports like follows. But if Slave Host has also read accesses, allow service on Slave Host, too, like follows. |
|
[root@www ~]# iptables -I INPUT 5 -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT
|
| [4] | Change settings on Slave Host. |
|
[root@repl01 ~]#
vi /etc/my.cnf
[mysqld]
[root@repl01 ~]# # add follows in [mysqld] section : get binary logs log-bin=mysql-bin # define server ID (different one from Master Host) server-id=102 # read only read_only=1 # define own hostname report-host=repl01.srv.world /etc/rc.d/init.d/mysqld restart Stopping mysqld: [ OK ] Starting mysqld: [ OK ] |
| [5] | Get Dump-Data on Master Host. |
|
[root@www ~]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.1.73-log Source distribution Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. # lock all tables mysql> flush tables with read lock; Query OK, 0 rows affected (0.00 sec) # show status (remember File, Position value) mysql> show master status; +------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+------------------+ | mysql-bin.000001 | 539 | | | +------------------+----------+--------------+------------------+ 1 row in set (0.00 sec) # remain the window above and open the another window and execute dump [root@www ~]# mysqldump -u root -p --all-databases --lock-all-tables --events > mysql_dump.sql Enter password: # back to the remained window and unlock mysql> unlock tables; Query OK, 0 rows affected (0.00 sec)
mysql>
exit Bye # transfer the dump to Slave Host [root@www ~]# scp mysql_dump.sql repl01.srv.world:/tmp/ root@repl01.srv.world's password: mysql_dump.sql 100% 515KB 514.7KB/s 00:00 |
| [6] | Configure replication settings on Slave Host. It's OK all, make sure the settings work normally to create databases on Master Host. |
|
# import dump from Master Host [root@repl01 ~]# mysql -u root -p < /tmp/mysql_dump.sql Enter password: [root@repl01 ~]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.1.73-log Source distribution Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
change master to -> master_host='10.0.0.31', # Master Hosts's IP -> master_user='replica', # replication ID -> master_password='password', # replication ID's password -> master_log_file='mysql-bin.000001', # File value confirmed on Master -> master_log_pos=539; # Position value confirmed on Master Query OK, 0 rows affected (0.58 sec) # start replication mysql> start slave; Query OK, 0 rows affected (0.00 sec) # show status mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 10.0.0.31
Master_User: replica
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 610
Relay_Log_File: mysqld-relay-bin.000002
Relay_Log_Pos: 322
Relay_Master_Log_File: mysql-bin.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: 610
Relay_Log_Space: 478
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:
1 row in set (0.00 sec)
|
| Sponsored Link |