小编给大家分享一下MySQL中slave_exec_mode如何设置自动跳过同步复制错误，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
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slave_exec_mode设置可以跳过1032(记录没有找到)和1062(主键重复)错误，并记录到错误日志中。
slave_exec_mode和slave_skip_errors作用是一样的，只是slave_exec_mode可以在线动态设置。slave_skip_errors必须添加到配置文件中，重启生效。
备库
mysql> select * from testdb1.student;
+------+------+-------+-------+
| id | name | class | score |
+------+------+-------+-------+
| 1 | a | 1 | 45 |
| 2 | b | 1 | 46 |
| 3 | c | 2 | 89 |
| 4 | d | 2 | 90 |
| 5 | e | 3 | 67 |
| 6 | f | 3 | 87 |
| 7 | g | 4 | 77 |
| 8 | h | 4 | 91 |
+------+------+-------+-------+
8 rows in set (0.00 sec)
mysql> delete from testdb1.student where id >5;
Query OK, 3 rows affected (0.00 sec)
mysql> commit;
Query OK, 0 rows affected (0.00 sec)
#修改参数之前
主库master
mysql> delete from testdb1.student where id >7;
Query OK, 1 row affected (0.00 sec)
备库查看状态
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.56.91
Master_User: rep
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: ray-bin.000008
Read_Master_Log_Pos: 1272
Relay_Log_File: ray-relay-bin.000003
Relay_Log_Pos: 1226
Relay_Master_Log_File: ray-bin.000008
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 1032
Last_Error: Could not execute Delete_rows event on table testdb1.student; Can't find record in 'student', Error_code: 1032; handler error HA_ERR_END_OF_FILE; the event's master log ray-bin.000008, end_log_pos 1241
Skip_Counter: 0
Exec_Master_Log_Pos: 1065
Relay_Log_Space: 1957
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 testdb1.student; Can't find record in 'student', Error_code: 1032; handler error HA_ERR_END_OF_FILE; the event's master log ray-bin.000008, end_log_pos 1241
Replicate_Ignore_Server_Ids:
Master_Server_Id: 2
Master_UUID: 840f94e0-8ea0-11e5-af92-080027a94012
Master_Info_File: /data/3307/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: 151126 12:42:37
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.00 sec)
mysql> stop slave;
Query OK, 0 rows affected (0.78 sec)
mysql> set global sql_slave_skip_counter=1;
Query OK, 0 rows affected (0.01 sec)
mysql> start slave;
Query OK, 0 rows affected (0.33 sec)
#修改备库参数
mysql> show variables like '%slave_exec_mode%';
+-----------------+--------+
| Variable_name | Value |
+-----------------+--------+
| slave_exec_mode | STRICT |
+-----------------+--------+
1 row in set (0.00 sec)
mysql> set global slave_exec_mode=idempotent;
Query OK, 0 rows affected (0.00 sec)
mysql> show variables like '%slave_exec_mode%';
+-----------------+------------+
| Variable_name | Value |
+-----------------+------------+
| slave_exec_mode | IDEMPOTENT |
+-----------------+------------+
1 row in set (0.00 sec)
主库删除数据
mysql> delete from testdb1.student where id >6;
Query OK, 1 row affected (0.01 sec)
mysql> commit;
Query OK, 0 rows affected (0.00 sec)
备库查看状态和错误日志
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.56.91
Master_User: rep
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: ray-bin.000008
Read_Master_Log_Pos: 1479
Relay_Log_File: ray-relay-bin.000004
Relay_Log_Pos: 488
Relay_Master_Log_File: ray-bin.000008
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: 1479
Relay_Log_Space: 1972
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: 2
Master_UUID: 840f94e0-8ea0-11e5-af92-080027a94012
Master_Info_File: /data/3307/data/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.00 sec)
[root@ray ~]# tail -20f /data/3307/data/mysql_ray.err
2015-11-26 12:50:29 12127 [Warning] Slave SQL: Could not execute Delete_rows event on table testdb1.student; Can't find record in 'student', Error_code: 1032; handler error HA_ERR_END_OF_FILE; the event's master log ray-bin.000008, end_log_pos 1655, Error_code: 1032
注：pos可能对不上，因为截取的问题，不必在意。
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