mysql master-slave_mysql 同步 master-slave
mysql 同步 master-slave
這么一個簡單問題，在ubuntu居然搞了兩天，終于搞定了。
中途出了點問題，搞的郁悶一天的問題就是 change master? 語句，好了下面就開始講正題吧。
linux OS: ubuntu server 8.04.1
software: mysql5.0.51
mysql1? : 192.168.6.4??? //master
mysql2? : 192.168.6.5??? //slave
安裝步驟
1. 分別在兩臺機器上安裝mysql-server
shell > apt-get install mysql-server
2.修改 mysql1 master 的配置文件
vim /etc/mysql/my.cnf
找到 bind-address = 127.0.0.1
改為 bind-address = 0.0.0.0
找到
＃server-id?????????????? = 1
＃log_bin???????????????? = /var/log/mysql/mysql-bin.log
去掉 注釋符號
server-id?????????????? = 1
log_bin???????????????? = /var/log/mysql/mysql-bin.log
default-character-set?? = utf8???? #新加上的為了保持編碼一至防止出錯
3.改好后保存退出，然后建立一個slave服務器的用戶賬號
root@msyql1:/# mysql -uroot -p
mysql>? grant replication slave,replication client on *.* to ludy@'192.168.6.5' identified by 'ypmwbg';
mysql >? grant replication slave on *.* to ludy@192.168.6.5 identified by 'ypmwbg';???? //給予權限
到這里要注意了，我的兩臺數據庫都是空的.
重啟mysql服務
4.修改 mysql2 服務器slave的 my.cnf配置文件
找到 bind-address??????????? = 127.0.0.1
替換 bind-address??????????? = 0.0.0.0
找到
＃server-id?????????????? = 1
＃log_bin???????????????? = /var/log/mysql/mysql-bin.log
把 注釋符號去掉 改為如下
server-id?????????????? = 2
master-host???????????? = 192.168.6.4
master-user???????????? = ludy
master-password???????? = ypmwbg
master-port???????????? = 3306
log_bin???????????????? = /var/log/mysql/mysql-bin.log
log-slave-updates
skip-slave-start
配置完后 重新啟動mysql
然后進入 mysql1 master 服務器
root@msyql:~# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.? Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 5.0.51a-3ubuntu5.4-log (Ubuntu)
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> show master status;
+------------------+----------+--------------+------------------+
| File???????????? | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000001 |????? 98? |????????????? |????????????????? |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
記錄下來以后 進入 mysql2 slave mysql
root@msyql2:~# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.? Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 5.0.51a-3ubuntu5.4-log (Ubuntu)
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql>? change master to master_log_file='mysql-bin.000001', master_log_pos=98;
//這個地方就是記錄下來的 mysql1 master 的數據
mysql > start slave;? //啟動slave 服務
mysql > show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.6.4
Master_User: ludy
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 181
Relay_Log_File: mysqld-relay-bin.000003
Relay_Log_Pos: 235
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: 181
Relay_Log_Space: 235
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
1 row in set (0.01 sec)
哈哈 ???? Slave_IO_Running: Yes
Slave_SQL_Running: Yes
說明啟動成功
然后在 master 新建 一個數據庫看看
root@msyq1l:/# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.? Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.0.51a-3ubuntu5.4-log (Ubuntu)
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> create database chenggong;
Query OK, 1 row affected (0.00 sec)
在 salve 查看看是否同步
mysql> show databases;
+--------------------+
| Database?????????? |
+--------------------+
| information_schema |
| chenggong????????? |?? //同步了哈哈 ～
| mysql????????????? |
| test?????????????? |
+--------------------+
4 rows in set (0.01 sec)
好了就寫這么多，如果你作 master－slave 的時候 你的master 數據里有數據那么
你必須 在? 我寫的 第三步與第四步中加入一下步驟：
接 上文 第三步進入master數據庫的Mysql控制臺執行
mysql >FLUSH TABLES WITH READ LOCK; ? //鎖表
然后從新打開一個 終端 拷貝 master 的所有的數據到 slave 服務器覆蓋
讀取? master 二進制文件與偏移量
mysql > show master status;
同樣 要記錄下 file 與 position 的值
然后解鎖
mysql > unlock tables;
?著作權歸作者所有：來自51CTO博客作者Deidara的原創作品，如需轉載，請注明出處，否則將追究法律責任
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