环境
两台 Ubuntu 机器
master
Ubuntu 16.04.2 LTS 192.168.189.137
slave
Ubuntu 16.04.2 LTS 192.168.189.133
MySQL 版本均为 5.5.62-0ubuntu0.14.04.1
修改配置
master 机器中 /etc/mysql/my.conf (其他版本可能在 /etc/mysql/mysql.conf.d/mysqld.cnf )配置添加以下:
# server id 默认 1
server-id = 1
# 开启binlog(二进制日志)
log_bin = /var/log/mysql/mysql-bin.log
# 对那些库进行复制
binlog_do_db = permission
# 对那些库进行忽略(多个使用逗号隔开)
binlog_ignore_db = mysql
slave 机器同理,不过需要设置不同的 server-id
启动
- 启动master 机器的 mysql,并连接
- 创建一个特权账号给 slave 用来进行复制,因为是在本地使用,因此使用 授权访问IP为 192.168开头即可
mysql> GRANT REPLICATION SLAVE,FILE ON *.* TO 'repl'@'192.168.%' IDENTIFIED BY 'repl';
- 查看 master ,执行 show master status命令
mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000003 | 2457 | permission | |
+------------------+----------+--------------+------------------+
1 row in set (0.01 sec)
- 启动 slave 机器的 mysql 并连接
- 向 master 建立复制连接
master_host master 机器 ip
master_port 端口号
master_user 用户名
master_password 密码
master_log_file binlog 文件名字(show master status 中 File 列 )
master_log_pos 偏移量(show master status 中 Position 列 )
mysql > CHANGE MASTER TO master_host = '192.168.189.137',master_port = 3306,master_user='repl',
master_password='repl',master_log_file='mysql-bin.000003',master_log_pos = 2457;
- 查看 slave 状态 show slave status\G;
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 192.168.189.137
Master_User: echo_slave
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 2457
Relay_Log_File: ubuntu-relay-bin.000009
Relay_Log_Pos: 304
Relay_Master_Log_File: mysql-bin.000003
Slave_IO_Running: No
Slave_SQL_Running: No
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: 2457
Relay_Log_Space: 512
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: NULL
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:
Master_Info_File: /var/lib/mysql/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
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
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
可以看到 IO 线程、SQL 线程都没有运行,
Slave_IO_Running: No
Slave_SQL_Running: No
- 启动复制线程(关闭为:STOP SLAVE)
START SLAVE:
此时
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
便完全开启复制了
- 其他
默认错误日志在 /var/log/mysql
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