MySQL双主热备问题处理_MySQL, Oracle及数据库讨论区_Weblogic技术|Tuxedo技术|中间件技术|Oracle论坛|JAVA论坛|Linux/Unix技术|hadoop论坛

总帖数

每页帖数

1/1页

返回列表

发起投票

查看: 1922 | 回复: 0

主题： MySQL双主热备问题处理

snisn

注册用户

等级：新兵
经验：51
发帖：84
精华：0
注册：2011-10-23
状态：离线
发送短消息息给snisn

加好友发送短消息息给snisn

发消息

发表于：

2015-4-22 11:50:35 | [全部帖] [楼主帖]

楼主

1. Slave_IO_Running: No

mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 172.16.1.21
Master_User: cahms
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 20398
Relay_Log_File: mysqld-relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File: mysql-bin.000003
Slave_IO_Running: No
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: 20398
Relay_Log_Space: 106
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: 1593
Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids; these ids must be different for replication to work (or the --replicate-same-server-id option must be used on slave but this does not always make sense; please check the manual before using it).
Last_SQL_Errno: 0
Last_SQL_Error:
1 row in set (0.00 sec)

;
(1) master and slave have equal MySQL server ids

【解决办法】
修改/etc/my.cnf 下的server-id的值，确保master和slave的server-id不一样即可；

(2) Error reading packet from server:

Access denied; you need the REPLICATION SLAVE privilege for this operation ( server_errno=1227)

【解决办法】主服务器给的复制权限不够，重新赋予权限。

```
> grant replication slave on *.* to 'uname'@'对端ip' identified by 'password'；
> flush privileges；

;

== e.g ==

;

> grant replication slave on *.* to 'root'@'172.16.1.21' identified by 'amtium';

;
grant replication slave on . to ‘root’@’172.16.1.23’ identified by ‘amtium’;

**2. Slave_IO_State:**

;

Waiting to reconnect after a failed master event read
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting to reconnect after a failed master event read
Master_Host: 172.16.1.231
Master_User: cahms
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 106
Relay_Log_File: mysqld-relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File: mysql-bin.000003
Slave_IO_Running: No
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: 106
Relay_Log_Space: 106
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)

;

【解决办法】

> grant replication slave on *.* to
'root'@'172.16.1.228' identified by 'amtium';

> grant replication slave on *.* to
'root'@'172.16.1.231' identified by 'amtium';

> flush privileges;

;

--转自