故障現(xiàn)象： 進(jìn)入slave服務(wù)器，運(yùn)行： mysql show slave status\G ....... Relay_Log_File: localhost-relay-bin.000535 Relay_Log_Pos: 21795072 Relay_Master_Log_File: localhost-bin.000094 Slave_IO_Running: Yes Slave_SQL_Running: No Replicate_Do_DB

故障現(xiàn)象：

進(jìn)入slave服務(wù)器，運(yùn)行：

mysql> show slave status\G

.......
Relay_Log_File: localhost-relay-bin.000535
Relay_Log_Pos: 21795072
Relay_Master_Log_File: localhost-bin.000094
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB:
......

解決辦法一、

Slave_SQL_Running: No
1.程序可能在slave上進(jìn)行了寫操作

2.也可能是slave機(jī)器重起后，事務(wù)回滾造成的.

一般是事務(wù)回滾造成的：
解決辦法：
mysql> slave stop;
mysql> set GLOBAL SQL_SLAVE_SKIP_COUNTER=1;
mysql> slave start;

解決辦法二、

首先停掉Slave服務(wù)：slave stop
到主服務(wù)器上查看主機(jī)狀態(tài)：
記錄File和Position對(duì)應(yīng)的值

進(jìn)入master

mysql> show master status;
+----------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+----------------------+----------+--------------+------------------+
| localhost-bin.000094 | 33622483 | | |
+----------------------+----------+--------------+------------------+
1 row in set (0.00 sec)

然后到slave服務(wù)器上執(zhí)行手動(dòng)同步：

mysql> change master to
> master_host='master_ip',
> master_user='user',
> master_password='pwd',
> master_port=3306,
> master_log_file=localhost-bin.000094',
> master_log_pos=33622483 ;
1 row in set (0.00 sec)
mysql> slave start;
1 row in set (0.00 sec)

mysql> show slave status\G
*************************** 1. row ***************************
........
Master_Log_File: localhost-bin.000094
Read_Master_Log_Pos: 33768775
Relay_Log_File: localhost-relay-bin.000537
Relay_Log_Pos: 1094034
Relay_Master_Log_File: localhost-bin.000094
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:

手動(dòng)同步需要停止master的寫操作！

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