mysql数据库双向同步热备_MySQL

环境：

Master server: 10.224.194.239

Slave server: 10.224.194.237

步骤：

1.分别在Master/Slaver mysql db 创建backup user：

GRANT FILE ON *.* TO backup@10.224.194.239 IDENTIFIED BY 'pass';

GRANT REPLICATION SLAVE ON *.* TO backup@10.224.194.239 IDENTIFIED BY 'pass';

GRANT FILE ON *.* TO backup@10.224.194.237 IDENTIFIED BY 'pass';

GRANT REPLICATION SLAVE ON *.* TO backup@10.224.194.237 IDENTIFIED BY 'pass';

2.在Master server配置/etc/my.cf 文件：

server-id = 1

binlog-do-db=test

binlog-ignore-db = mysql

replicate-do-db=test

replicate-ignore-db = mysql

master-host=10.224.194.237

master-user=backup

master-password=pass

master-port=3306

master-connect-retry=60

slave-skip-errors=all

3.在Master server配置/etc/my.cf 文件：

server-id = 2

binlog-do-db=test

binlog-ignore-db = mysql

replicate-do-db=test

replicate-ignore-db = mysql

master-host=10.224.194.239

master-user=backup

master-password=pass

master-port=3306

master-connect-retry=60

slave-skip-errors=all

4.重启mysql数据库，验证命令如下：

查看Master状态

show master status;

mysql> show master status;

+-----------------+----------+--------------+------------------+

| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |

+-----------------+----------+--------------+------------------+

| mysqllog.000003 | 301 | test | mysql |

+-----------------+----------+--------------+------------------+

1 row in set (0.00 sec)

查看Slave状态

show slave status /G;

mysql> show slave status /G;

*************************** 1. row ***************************

Slave_IO_State: Reconnecting after a failed master event read

Master_Host: 10.224.194.239

Master_User: backup

Master_Port: 3306

Connect_Retry: 60

Master_Log_File: mysqllog.000003

Read_Master_Log_Pos: 301

Relay_Log_File: mysqlgsb-relay-bin.000082

Relay_Log_Pos: 348

Relay_Master_Log_File: mysqllog.000003

Slave_IO_Running: No

Slave_SQL_Running: Yes

Replicate_Do_DB: test

Replicate_Ignore_DB: mysql

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: 301

Relay_Log_Space: 650

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:

1 row in set (0.00 sec)

ERROR:

No query specified

查看同步进程：

mysql> show processlist /G;

*************************** 1. row ***************************

Id: 1

User: system user

Host:

db: NULL

Command: Connect

Time: 4186

State: Waiting for master to send event

Info: NULL

*************************** 2. row ***************************

Id: 2

User: system user

Host:

db: NULL

Command: Connect

Time: 3745

State: Has read all relay log; waiting for the slave I/O thread to update it

Info: NULL

*************************** 3. row ***************************

Id: 5

User: root

Host: mysqlpri.webex.com:28293

db: NULL

Command: Query

Time: 0

State: NULL

Info: show processlist

*************************** 4. row ***************************

Id: 6

User: backup

Host: 10.224.194.237:41729

db: NULL

Command: Binlog Dump

Time: 135

State: Has sent all binlog to slave; waiting for binlog to be updated

Info: NULL

4 rows in set (0.00 sec)

ERROR:

No query specified

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