1.实验演示环境
--主库版本：
root@(none)>show variables like 'version';
+---------------+---------------------+
| Variable_name | Value |
+---------------+---------------------+
| version | 5.7.23-23-31.31-log |
+---------------+---------------------+
1 row in set (0.01 sec)
--复制模式
root@(none)>show variables like '%gtid_mode%';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| gtid_mode | ON |
+---------------+-------+
1 row in set (0.00 sec)
--复制进程
root@(none)>show processlist;
+----+-----------------+---------------------+-------+------------------+-------+---------------------------------------------------------------+------------------+-----------+---------------+
| Id | User | Host | db | Command | Time | State | Info | Rows_sent | Rows_examined |
+----+-----------------+---------------------+-------+------------------+-------+---------------------------------------------------------------+------------------+-----------+---------------+
| 1 | event_scheduler | localhost | NULL | Daemon | 14232 | Waiting on empty queue | NULL | 0 | 0 |
| 9 | repl | 192.168.2.101:53422 | NULL | Binlog Dump GTID | 11941 | Master has sent all binlog to slave; waiting for more updates | NULL | 0 | 0 |
| 14 | root | localhost | NULL | Query | 0 | starting | show processlist | 0 | 0 |
+----+-----------------+---------------------+-------+------------------+-------+---------------------------------------------------------------+------------------+-----------+---------------+
8 rows in set (0.00 sec)
root@(none)>
--从库状态
root@(none)>show slave status G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.100
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000014
Read_Master_Log_Pos: 194
Relay_Log_File: relay-bin.000005
Relay_Log_Pos: 407
Relay_Master_Log_File: mysql-bin.000014
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Master_UUID: 015d4d11-0363-11e9-bb6c-0800279a3030
Master_Info_File: /mysql/3306/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
Retrieved_Gtid_Set: 015d4d11-0363-11e9-bb6c-0800279a3030:1-4
Executed_Gtid_Set: 015d4d11-0363-11e9-bb6c-0800279a3030:1-4
Auto_Position: 1
1 row in set (0.00 sec)
root@(none)>
--主库记录：
root@pxc01>select * from tbx;
+------+
| id |
+------+
| 4 |
| 5 |
| 6 |
+------+
--从库记录:
root@pxc01>select * from tbx;
+------+
| id |
+------+
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
+------+
6 rows in
2.从库找不到对应的被删除的记录
-- 如果是在主库上删除记录，而从库上找不到对应的记录，则可以直接跳过该事务
-- 下面我们首选在从库上删除一条记录
root@pxc01>delete from tbx where id=6;
Query OK, 1 row affected (0.01 sec)
-- 接下来在主库上删除该记录
root@pxc01>delete from tbx where id=6;
Query OK, 1 row affected (0.11 sec)
root@pxc01>
-- 从库端提示无法找到对应的记录
root@pxc01>system clear
root@pxc01>show slave status G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.100
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000015
Read_Master_Log_Pos: 1218
Relay_Log_File: relay-bin.000006
Relay_Log_Pos: 1175
Relay_Master_Log_File: mysql-bin.000015
Slave_IO_Running: Yes
Slave_SQL_Running: No
Last_Errno: 1032
Last_Error: Could not execute Delete_rows event on table pxc01.tbx; Can't find record in 'tbx', Error_code: 1032; handler error HA_ERR_END_OF_FILE; the event's master log mysql-bin.000015, end_log_pos 1187
Skip_Counter: 0
Exec_Master_Log_Pos: 962
Relay_Log_Space: 2397
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: 0
Last_IO_Error:
Last_SQL_Errno: 1032
Last_SQL_Error: Could not execute Delete_rows event on table pxc01.tbx; Can't find record in 'tbx', Error_code: 1032; handler error HA_ERR_END_OF_FILE; the event's master log mysql-bin.000015, end_log_pos 1187
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: 015d4d11-0363-11e9-bb6c-0800279a3030
Master_Info_File: /mysql/3306/data/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp: 190106 23:02:52
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set: 015d4d11-0363-11e9-bb6c-0800279a3030:1-6:8-11
Executed_Gtid_Set: 015d4d11-0363-11e9-bb6c-0800279a3030:1-10,
2b4452cb-119d-11e9-a121-0800279a3030:1
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
--下面通过注入空事务来跳过
root@pxc01>stop slave sql_thread;
root@pxc01>set gtid_next='015d4d11-0363-11e9-bb6c-0800279a3030:11';
root@pxc01>begin;commit;
root@pxc01>set gtid_next='AUTOMATIC';
root@pxc01>start slave sql_thread;
root@pxc01>
root@pxc01>show slave status G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.100
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000015
Read_Master_Log_Pos: 1218
Relay_Log_File: relay-bin.000006
Relay_Log_Pos: 1431
Relay_Master_Log_File: mysql-bin.000015
Slave_IO_Running: Yes
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: 1218
Relay_Log_Space: 2397
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: 015d4d11-0363-11e9-bb6c-0800279a3030
Master_Info_File: /mysql/3306/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: 015d4d11-0363-11e9-bb6c-0800279a3030:1-6:8-11
Executed_Gtid_Set: 015d4d11-0363-11e9-bb6c-0800279a3030:1-11,
2b4452cb-119d-11e9-a121-0800279a3030:1
Auto_Position: 1
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
root@pxc01>