从二进制日志读取数据时，来自 master 的 Mysql 错误 1236

Mysql error 1236 from master when reading data from binary log

提问by eltortuganegra

I have 2 MySql with a master/slave configuration and the replication is failing. The MySql Master crashed and a new register in the mysql-bin.indexwas created. I deleted this new register because this file was not existed in the file system. Then the MySql Master restarted successfully.

我有 2 个带有主/从配置的 MySql，并且复制失败。MySql Master 崩溃并在mysql-bin.index中创建了一个新寄存器。我删除了这个新寄存器，因为文件系统中不存在这个文件。然后MySql Master重启成功。

Now, I have the next error in the slave:

现在，我在从站中遇到了下一个错误：

mysql> show slave status \G
*************************** 1. row ***************************
           Slave_IO_State: 
              Master_Host: 10.64.253.99
              Master_User: replication
              Master_Port: 3306
            Connect_Retry: 60
          Master_Log_File: mysql-bin.001050
      Read_Master_Log_Pos: 54868051
           Relay_Log_File: mysqld-relay-bin.000001
            Relay_Log_Pos: 4
    Relay_Master_Log_File: mysql-bin.001050
         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: 54868051
          Relay_Log_Space: 107
          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: 1236
            Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'Could not find first log file name in binary log index file'
           Last_SQL_Errno: 0
           Last_SQL_Error: 
Replicate_Ignore_Server_Ids: 
         Master_Server_Id: 1

If I execute the "show master status" for view the mysql bin log file and the position:

如果我执行“show master status”来查看mysql bin日志文件和位置：

mysql> show master status \G
*************************** 1. row ***************************
            File: mysql-bin.001050
        Position: 55586895
    Binlog_Do_DB: aaa
 Binlog_Ignore_DB: xxx,yyy,zzz,mysql

Then I set new config to the slave:

然后我为从站设置新配置：

STOP SLAVE;
CHANGE MASTER TO 
    MASTER_HOST='10.64.253.99',
    MASTER_USER='slaveUser',
    MASTER_PASSWORD='12345',
    MASTER_LOG_FILE='mysql-bin.001050', 
    MASTER_LOG_POS=55586895;
START SLAVE;

And if I check slave status again I have the same error:

如果我再次检查从站状态，我会遇到同样的错误：

mysql> show slave status \G
*************************** 1. row ***************************
           Slave_IO_State: 
              Master_Host: 10.64.253.99
              Master_User: replication
              Master_Port: 3306
            Connect_Retry: 60
          Master_Log_File: mysql-bin.001050
      Read_Master_Log_Pos: 55586895
           Relay_Log_File: mysqld-relay-bin.000001
            Relay_Log_Pos: 4
    Relay_Master_Log_File: mysql-bin.001050
         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: 55586895
          Relay_Log_Space: 107
          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: 1236
            Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'Could not find first log file name in binary log index file'
           Last_SQL_Errno: 0
           Last_SQL_Error: 
 Replicate_Ignore_Server_Ids: 
         Master_Server_Id: 1

I have checked in the MySql Master that the mysql-bin.001050 exist and is not empty.

我已经在MySql Master中检查过mysql-bin.001050存在并且不为空。

This is a production environment then new data are inserted every minute. The position value can to change in minutes or seconds. I don't know if this is a problem.

这是一个生产环境，每分钟都会插入新数据。位置值可以以分钟或秒为单位进行更改。我不知道这是否有问题。

The max_allowed_packet variable has the same value in the two MySql (16M).

max_allowed_pa​​cket 变量在两个MySql（16M）中具有相同的值。

Why can not the slave find the binary log file?

为什么slave找不到二进制日志文件？

回答by fajarhide

You can try this:

你可以试试这个：

1. Slave: stop slave;
2. Master: flush logs

3. Master: show master status; — take note of the master log file and master log position

4. Slave: CHANGE MASTER TO MASTER_LOG_FILE='log-bin.00000X', MASTER_LOG_POS=106;

5. Slave: start slave;

1. 奴隶： stop slave;
2. 掌握： flush logs

3. 掌握： show master status; — take note of the master log file and master log position

4. 奴隶： CHANGE MASTER TO MASTER_LOG_FILE='log-bin.00000X', MASTER_LOG_POS=106;

5. 奴隶：start slave;