Auto_Position=1 主库清空部分binlog从库错误(1236)的解决办法

环境:

OS:Centos 7

DB:mysql 5.7.29

1.从库同步错误如下:

mysql> show slave status \G;
*************************** 1. row ***************************
               Slave_IO_State: 
                  Master_Host: 192.168.1.104
                  Master_User: repl
                  Master_Port: 13306
                Connect_Retry: 60
              Master_Log_File: binlog.000010
          Read_Master_Log_Pos: 89768076
               Relay_Log_File: relaylog-binlog.000007
                Relay_Log_Pos: 89768283
        Relay_Master_Log_File: binlog.000010
             Slave_IO_Running: No
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          Replicate_Ignore_DB: information_schema,performance_schema,sys
           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: 89768076
              Relay_Log_Space: 89768574
              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: 'The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires. Replicate the missing transactions from elsewhere, or provision a new slave from backup. Consider increasing the master's binary log expiration period. The GTID set sent by the slave is '636915ca-ef98-11ed-a854-080027962264:1-836,
9ecf61e2-eed1-11ed-a4b0-080027e81195:1-457', and the missing transactions are '9ecf61e2-eed1-11ed-a4b0-080027e81195:458-465'.'
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 1
                  Master_UUID: 9ecf61e2-eed1-11ed-a4b0-080027e81195
             Master_Info_File: /opt/mysql57/data/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: 230511 23:11:27
     Last_SQL_Error_Timestamp: 
               Master_SSL_Crl: 
           Master_SSL_Crlpath: 
           Retrieved_Gtid_Set: 9ecf61e2-eed1-11ed-a4b0-080027e81195:358-457
            Executed_Gtid_Set: 636915ca-ef98-11ed-a854-080027962264:1-836,
9ecf61e2-eed1-11ed-a4b0-080027e81195:1-457
                Auto_Position: 1
         Replicate_Rewrite_DB: 
                 Channel_Name: 
           Master_TLS_Version: 
1 row in set (0.00 sec)

ERROR: 
No query specified

2.重置从库
mysql> stop slave;
mysql> reset slave;##情况错误信，Master_Log_File项
mysql> reset master; ##清空Retrieved_Gtid_Set和Executed_Gtid_Set项

3.获取跳过的gtid

主库上获取:

mysql> show variables like '%gtid%';
+----------------------------------+--------------------------------------------+
| Variable_name                    | Value                                      |
+----------------------------------+--------------------------------------------+
| binlog_gtid_simple_recovery      | ON                                         |
| enforce_gtid_consistency         | ON                                         |
| gtid_executed_compression_period | 1000                                       |
| gtid_mode                        | ON                                         |
| gtid_next                        | AUTOMATIC                                  |
| gtid_owned                       |                                            |
| gtid_purged                      | 9ecf61e2-eed1-11ed-a4b0-080027e81195:1-569 |
| session_track_gtids              | OFF                                        |
+----------------------------------+--------------------------------------------+
8 rows in set (0.01 sec)

从库上获取

mysql> show variables like '%gtid%';
+----------------------------------+-----------+
| Variable_name                    | Value     |
+----------------------------------+-----------+
| binlog_gtid_simple_recovery      | ON        |
| enforce_gtid_consistency         | ON        |
| gtid_executed_compression_period | 1000      |
| gtid_mode                        | ON        |
| gtid_next                        | AUTOMATIC |
| gtid_owned                       |           |
| gtid_purged                      |           |
| session_track_gtids              | OFF       |
+----------------------------------+-----------+
8 rows in set (0.01 sec)

我这里从库上的gtid_purged为空,若有值的话需要加入到如下语句(该语句在从库上执行,多个gtid组以逗号,分隔)

mysql>set @@global.gtid_purged='9ecf61e2-eed1-11ed-a4b0-080027e81195:1-569';

查看状态

mysql> show slave status \G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.1.104
                  Master_User: repl
                  Master_Port: 13306
                Connect_Retry: 60
              Master_Log_File: binlog.000014
          Read_Master_Log_Pos: 73446644
               Relay_Log_File: relaylog-binlog.000006
                Relay_Log_Pos: 73446851
        Relay_Master_Log_File: binlog.000014
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          Replicate_Ignore_DB: information_schema,performance_schema,sys
           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: 73446644
              Relay_Log_Space: 73447142
              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: 1
                  Master_UUID: 9ecf61e2-eed1-11ed-a4b0-080027e81195
             Master_Info_File: /opt/mysql57/data/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: 
     Last_SQL_Error_Timestamp: 
               Master_SSL_Crl: 
           Master_SSL_Crlpath: 
           Retrieved_Gtid_Set: 9ecf61e2-eed1-11ed-a4b0-080027e81195:570-657 ##这里从570开始接收,因为上面569已经跳过了.
            Executed_Gtid_Set: 9ecf61e2-eed1-11ed-a4b0-080027e81195:1-657
                Auto_Position: 1
         Replicate_Rewrite_DB: 
                 Channel_Name: 
           Master_TLS_Version: 
1 row in set (0.00 sec)

ERROR: 
No query specified