有2 天的假期……因為….. 拗柴了… 應該問 dr 要多幾天的假……好好咁休息下ma ~ 很久沒有拗得這麼嚴重…對上一次已經係F.4 之時… 個次係左腳……估唔到一踏入豬年就連隻右腳不敗之神話亦要告吹了 ~~ 左右腳 同右手都出過事 ….. 左手細個個時拗過…. 唉也 …. 原來我已經係四肢不全啦….. lum, Q, 天宇 係港安陪我, 一眾人又幫我找taxi ~ 謝謝你們 係診所第一次坐了輪椅….俾人推既滋味其實唔係咁爽…. 如Q 所講….好似好冇用咁~~
A. background OS: CentOS 4.4 MySQL package: 4.1.20-1.RHEL4.1 node1: 192.168.0.131 (Master 1/Slave 2) node2: 192.168.0.132 (Master 2/Slave 1) mysql path: /var/lib/mysql mysql config file: /etc/my.cnf reference: http://www.howtoforge.com/mysql_master_master_replication http://cha.homeip.net/blog/archives/2004/12/replication_in.html B. procedure 1. On Master 1, make changes in my.cnf #vim /etc/my.cnf
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[mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Default to using old password format for compatibility with mysql 3.x # clients (those using the mysqlclient10 compatibility package). old_passwords=1 #replication log-bin binlog-do-db=horde binlog-ignore-db=mysql binlog-ignore-db=test server-id=1 [mysql.server] user=mysql basedir=/var/lib [mysqld_safe] err-log=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid |
2. On master 1, create a replication slave account in mysql. #mysql -u root -p mysql> grant replication slave on *.* to ‘replication’@192.168.0.132 identified by ‘slave’; mysql> exit and restart the mysql master1. #service mysqld restart 3. Now edit my.cnf on Slave1 or Master2 :
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[mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock old_passwords=1 server-id=2 master-host = 192.168.0.131 master-user = replication master-password = slave master-port = 3306 [mysql.server] user=mysql basedir=/var/lib [mysqld_safe] err-log=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid |
4. Restart mysql slave 1 and check config at #service mysqld restart #mysql -u root -p mysql> start slave; mysql> show slave statusG; ensure Slave_IO_Running and Slave_SQL_Running: must be to YES. mysql> exit 5. On master 1:
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mysql> show master status; +------------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------------+----------+--------------+------------------+ |MysqlMYSQL01-bin.000008 | 79 | horde | mysql,test | +------------------------+----------+--------------+------------------+ 1 row in set (0.00 sec) |
The above scenario is for master-slave, now we will create a slave master scenario for the same systems and it will work as master master. 6. On Master2/Slave 1, edit my.cnf and master entries into it: #vim /etc/my.cnf
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[mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Default to using old password format for compatibility with mysql 3.x # clients (those using the mysqlclient10 compatibility package). old_passwords=1 server-id=2 master-host=192.168.0.131 master-user=replication master-password=slave master-port=3306 log-bin #information for becoming master added binlog-do-db=horde [mysql.server] user=mysql basedir=/var/lib [mysqld_safe] err-log=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid |
7. Create a replication slave account on master2 for master1 mysql> grant replication slave on *.* to ‘replication’@192.168.0.131 identified by ‘slave2’; 8. Edit my.cnf on master1 for information of its master. #vim /etc/my.cnf
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[mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Default to using old password format for compatibility with mysql 3.x # clients (those using the mysqlclient10 compatibility package). old_passwords=1 #master log-bin binlog-do-db=adam binlog-ignore-db=mysql binlog-ignore-db=test server-id=1 #information for becoming slave. master-host=192.168.0.132 master-user=replication master-password=slave2 master-port=3306 [mysql.server] user=mysql basedir=/var/lib |
9. Restart both mysql master1 and master2. On mysql master1: mysql> start slave; On mysql master2: mysql > show master status; On mysql master 1: mysql> show slave statusG; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.0.132 Master_User: replication Master_Port: 3306 Connect_Retry: 60 Master_Log_File: Mysql1MYSQL02-bin.000008 Read_Master_Log_Pos: 410 Relay_Log_File: Mysql1MYSQL01-relay-bin.000008 Relay_Log_Pos: 445 Relay_Master_Log_File: Mysql1MYSQL02-bin.000008 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: 410 Relay_Log_Space: 445 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: 103799 1 row in set (0.00 sec) ERROR: No query specified make sure its running. Now you can create tables in the database and you will see changes in slave. Enjoy!!
CentOS 4.4 /etc/vimrc set background=dark “brighter the color set ai set smartindent