本篇内容主要讲解“MySQL复制环境Slave报错"Got fatal error 1236 from master when reading data"怎么解决”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“MySQL复制环境Slave报错"Got fatal error 1236 from master when reading data"怎么解决”吧!
MySQL复制环境Slave节点报错
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 10.20.30.10
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000008
Read_Master_Log_Pos: 920
Relay_Log_File: mysqld-relay-bin.000018
Relay_Log_Pos: 4
Relay_Master_Log_File: mysql-bin.000008
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: 920
Relay_Log_Space: 154
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
Master_UUID: 203fe772-177e-11e7-b15c-000c296b3b20
Master_Info_File: /mysql_data_57/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp: 170624 17:03:05
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
在Master节点上查看二进制日志的位置
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000011 | 1734 | | | |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
查看Master节点的二进制日志
mysql> show master logs;
+------------------+-----------+
| Log_name | File_size |
+------------------+-----------+
| mysql-bin.000010 | 3780 |
| mysql-bin.000011 | 1734 |
+------------------+-----------+
2 rows in set (0.06 sec)
查看Slave节点的二进制日志
mysql> show binary logs;
+------------------+-----------+
| Log_name | File_size |
+------------------+-----------+
| mysql-bin.000008 | 154 |
| mysql-bin.000009 | 154 |
+------------------+-----------+
2 rows in set (0.02 sec)
报错原因：
在Master节点上删除了二进制日志，导致Slave节点的IO线程获取不到指定的二进制日志
在Master节点上设置了自动删除二进制日志的参数，5天后会自动删除二进制日志；而Slave节点所在的数据库一直没有启动，再次启动时IO线程获取不到Master节点的二进制日志
mysql> show variables like '%expire%';
+--------------------------------+-------+
| Variable_name | Value |
+--------------------------------+-------+
| disconnect_on_expired_password | ON |
| expire_logs_days | 5 |
+--------------------------------+-------+
2 rows in set (0.02 sec)
解决方法：
除非主库有二进制日志备份，否则需要重建Slave节点
到此，相信大家对“MySQL复制环境Slave报错"Got fatal error 1236 from master when reading data"怎么解决”有了更深的了解，不妨来实际操作一番吧！这里是亿速云网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！
