Mysql 的安装不再介绍, 直接说明 Master 和 Slave 的配置
Master 配置:
[mysqld]
datadir=/data/mysql
socket=/tmp/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
log-bin=master-bin #启用二进制日志
binlog_format=mixed #二进制日志格式使用混合模式
server-id=1 #服务器id,范围为{0-2^32}
innodb_file_per_table=1 #每一个innodb表使用独立的文件
sync-binlog=1 #为保证事物安全, 在master上启用同步二进制日志功能
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
启动mysqld, 创建复制用户:
[root@keep1 ~]# service mysqld start
Starting MySQL...... SUCCESS!
[root@keep1 ~]# mysql
...
mysql> grant replication slave on *.* to 'repluser'@'10.11.8.%' identified by 'replpass';
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
Slave 配置:
[mysqld]
datadir=/data/mysql
socket=/tmp/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
#log-bin=master-bin
binlog_format=mixed
server-id=10
innodb_file_per_table=1
relay-log=relay-log
read-only=1 #为保证数据, 在slave上启用只读, 对具有super权限的用户不生效
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
启动mysqld 服务:
[root@keep2 ~]# service mysqld start
Starting MySQL...... SUCCESS!
Master 节点查看二进制日志状态:
mysql> show master status;
+-------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+-------------------+----------+--------------+------------------+-------------------+
| master-bin.000002 | 409 | | | |
+-------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
Slave 上 配置连接, 查看状态, 启动slave :
mysql> change master to master_host='10.11.8.219',master_user='repluser',master_password='replpass',master_log_file='master-bin.000002',master_log_pos=409;
Query OK, 0 rows affected, 2 warnings (0.03 sec)
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 10.11.8.219
Master_User: repluser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: master-bin.000002
Read_Master_Log_Pos: 409
Relay_Log_File: relay-log.000001
Relay_Log_Pos: 4
Relay_Master_Log_File: master-bin.000002
Slave_IO_Running: No #此时IO和SQL都处于停止状态
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: 409 #slavev上执行到了第几个
Relay_Log_Space: 120
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No #是否允许使用SSL
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: NULL #slave比master慢多少
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: 0
Master_UUID:
Master_Info_File: /data/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
1 row in set (0.00 sec)
mysql> start slave; #启动Slave
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 10.11.8.219
Master_User: repluser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: master-bin.000002
Read_Master_Log_Pos: 409
Relay_Log_File: relay-log.000002
Relay_Log_Pos: 284
Relay_Master_Log_File: master-bin.000002
Slave_IO_Running: Yes #状态为启动
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: 409
Relay_Log_Space: 451
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:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: 441052e5-28c9-11e6-9cd1-0800274f81c9
Master_Info_File: /data/mysql/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
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
1 row in set (0.00 sec)
Master 上添加数据, 测试同步:
Master 创建一个库:
mysql> create database ktt;
Query OK, 1 row affected (0.01 sec)
Slave 查看状态:
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 10.11.8.219
Master_User: repluser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: master-bin.000002
Read_Master_Log_Pos: 500
Relay_Log_File: relay-log.000002
Relay_Log_Pos: 375
Relay_Master_Log_File: master-bin.000002
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: 500
Relay_Log_Space: 542
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:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: 441052e5-28c9-11e6-9cd1-0800274f81c9
Master_Info_File: /data/mysql/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
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
1 row in set (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| ktt |
| mysql |
| performance_schema |
| test |
+--------------------+
5 rows in set (0.01 sec)
补充: Slave 重启后可自动启动slave 进程是因为保存了相关的连接信息, 即以下两个文件
[root@keep2 mysql]# cat master.info
23
master-bin.000002
500
10.11.8.219
repluser
replpass
3306
60
0
0
1800.000
0
441052e5-28c9-11e6-9cd1-0800274f81c9
86400
0
[root@keep2 mysql]# cat relay-log.info
7
./relay-log.000004
284
master-bin.000002
500
0
0
1
