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更新时间：2022-09-09 23:10:40
mysql slave状态如下，发现IO线程为NO状态，并且报1236错误代码
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mysql> show slave status\G*************************** 1. row *************************** Slave_IO_State:
Master_Host: 10.0.0.20
Master_User: rep
Master_Port: 3307
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 4
Relay_Log_File: relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: No
Slave_SQL_Running: Yes
Replicate_Do_DB:
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: 4
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: 3
1 row in set (0.00 sec)
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解决办法
登陆master端做以下操作，并记录File_zize对应的值107
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mysql> reset master;Query OK, 0 rows affected (0.11 sec)
mysql> show master logs;+------------------+-----------+
| Log_name | File_size |+------------------+-----------+
| mysql-bin.000001 | 107 |+------------------+-----------+
1 row in set (0.00 sec)
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登陆slave端做一下操作，master_log_pos的值设置为107
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mysql> stop slave;Query OK, 0 rows affected (0.00 sec)
mysql> change master to master_log_pos=107;
Query OK, 0 rows affected (0.11 sec)
mysql> start 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: 10.0.0.20
Master_User: rep
Master_Port: 3307
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 107
Relay_Log_File: relay-bin.000002
Relay_Log_Pos: 253
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
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: 107
Relay_Log_Space: 403
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: 3
1 row in set (0.00 sec)
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最后主从同步恢复了正常^_^
本文转自 茁壮的小草 51CTO博客，原文链接：http://blog.51cto.com/wn2100/1954164，如需转载请自行联系原作者