mysql主从复制
基础知识不补了，直接搞起。
公司内网,尽管不在一个网段，保证路由畅通就OK了。
主IP：10.241.92.201
从IP：10.241.89.69
第一步：Master -- Slave my.cnf配置，确定主从关系，之后启动mysql.
----master
log-bin=mysql-bin #开启二进制日志,slave会基于此log-bin来做replication,slave不必开启这个
server-id=1 #master的标示
sync_binlog=1 #任何一个事务提交之后就立即写入到磁盘中的二进制文件
innodb_flush_logs_at_trx_commit=1 #任何一个事物提交之后就立即写入到磁盘中的日志文件
----slave
server-id=2#slave的标示
第二步：
在Master上创建用于复制的帐号repl_user,授权从服务器10.241.89.69使用密码为'123456'的repl_user帐号对所有数据库进行复制操作。
------on master
mysql> grant replication slave on *.* to [email protected] identified by '123456';
mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000001 | 238 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
------on slave
mysql> slave stop;
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> change master to master_host='10.241.92.201',
-> master_user='repl_user',
-> master_password='123456',
-> master_log_file='mysql-bin.000001',
-> master_log_pos=238;
Query OK, 0 rows affected (0.08 sec)
mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
第三步：测试复制
--------on master
mysql> use test;
mysql> create table a (id int(100));
Query OK, 0 rows affected (0.35 sec)
mysql> show tables;
+----------------+
| Tables_in_test |
+----------------+
| a |
+----------------+
1 row in set (0.00 sec)
mysql> desc a;
+-------+----------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+----------+------+-----+---------+-------+
| id | int(100) | YES | | NULL | |
+-------+----------+------+-----+---------+-------+
1 row in set (0.00 sec)
mysql> insert into a values(10);
Query OK, 1 row affected (0.00 sec)
mysql> select * from a;
+------+
| id |
+------+
| 10 |
+------+
1 row in set (0.00 sec)
mysql> insert into a values(11);
Query OK, 1 row affected (0.00 sec)
mysql> select * from a;
+------+
| id |
+------+
| 10 |
| 11 |
+------+
2 rows in set (0.00 sec)
------on slave
mysql> use test;
mysql> select * from a;
+------+
| id |
+------+
| 10 |
| 11 |
+------+
2 rows in set (0.00 sec)
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 10.241.92.201
Master_User: repl_user
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 1293
Relay_Log_File: AY12042509502824de51d-relay-bin.000005
Relay_Log_Pos: 499
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: 1293
Relay_Log_Space: 499
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 (0.00 sec)